---
_id: '10609'
abstract:
- lang: eng
  text: "We study Multi-party computation (MPC) in the setting of subversion, where
    the adversary tampers with the machines of honest parties. Our goal is to construct
    actively secure MPC protocols where parties are corrupted adaptively by an adversary
    (as in the standard adaptive security setting), and in addition, honest parties’
    machines are compromised.\r\nThe idea of reverse firewalls (RF) was introduced
    at EUROCRYPT’15 by Mironov and Stephens-Davidowitz as an approach to protecting
    protocols against corruption of honest parties’ devices. Intuitively, an RF for
    a party   P  is an external entity that sits between   P  and the outside world
    and whose scope is to sanitize   P ’s incoming and outgoing messages in the face
    of subversion of their computer. Mironov and Stephens-Davidowitz constructed a
    protocol for passively-secure two-party computation. At CRYPTO’20, Chakraborty,
    Dziembowski and Nielsen constructed a protocol for secure computation with firewalls
    that improved on this result, both by extending it to multi-party computation
    protocol, and considering active security in the presence of static corruptions.
    In this paper, we initiate the study of RF for MPC in the adaptive setting. We
    put forward a definition for adaptively secure MPC in the reverse firewall setting,
    explore relationships among the security notions, and then construct reverse firewalls
    for MPC in this stronger setting of adaptive security. We also resolve the open
    question of Chakraborty, Dziembowski and Nielsen by removing the need for a trusted
    setup in constructing RF for MPC. Towards this end, we construct reverse firewalls
    for adaptively secure augmented coin tossing and adaptively secure zero-knowledge
    protocols and obtain a constant round adaptively secure MPC protocol in the reverse
    firewall setting without setup. Along the way, we propose a new multi-party adaptively
    secure coin tossing protocol in the plain model, that is of independent interest."
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Suvradip
  full_name: Chakraborty, Suvradip
  id: B9CD0494-D033-11E9-B219-A439E6697425
  last_name: Chakraborty
- first_name: Chaya
  full_name: Ganesh, Chaya
  last_name: Ganesh
- first_name: Mahak
  full_name: Pancholi, Mahak
  last_name: Pancholi
- first_name: Pratik
  full_name: Sarkar, Pratik
  last_name: Sarkar
citation:
  ama: 'Chakraborty S, Ganesh C, Pancholi M, Sarkar P. Reverse firewalls for adaptively
    secure MPC without setup. In: <i>27th International Conference on the Theory and
    Application of Cryptology and Information Security</i>. Vol 13091. Springer Nature;
    2021:335-364. doi:<a href="https://doi.org/10.1007/978-3-030-92075-3_12">10.1007/978-3-030-92075-3_12</a>'
  apa: 'Chakraborty, S., Ganesh, C., Pancholi, M., &#38; Sarkar, P. (2021). Reverse
    firewalls for adaptively secure MPC without setup. In <i>27th International Conference
    on the Theory and Application of Cryptology and Information Security</i> (Vol.
    13091, pp. 335–364). Virtual, Singapore: Springer Nature. <a href="https://doi.org/10.1007/978-3-030-92075-3_12">https://doi.org/10.1007/978-3-030-92075-3_12</a>'
  chicago: Chakraborty, Suvradip, Chaya Ganesh, Mahak Pancholi, and Pratik Sarkar.
    “Reverse Firewalls for Adaptively Secure MPC without Setup.” In <i>27th International
    Conference on the Theory and Application of Cryptology and Information Security</i>,
    13091:335–64. Springer Nature, 2021. <a href="https://doi.org/10.1007/978-3-030-92075-3_12">https://doi.org/10.1007/978-3-030-92075-3_12</a>.
  ieee: S. Chakraborty, C. Ganesh, M. Pancholi, and P. Sarkar, “Reverse firewalls
    for adaptively secure MPC without setup,” in <i>27th International Conference
    on the Theory and Application of Cryptology and Information Security</i>, Virtual,
    Singapore, 2021, vol. 13091, pp. 335–364.
  ista: 'Chakraborty S, Ganesh C, Pancholi M, Sarkar P. 2021. Reverse firewalls for
    adaptively secure MPC without setup. 27th International Conference on the Theory
    and Application of Cryptology and Information Security. ASIACRYPT: International
    Conference on Cryptology in Asia, LNCS, vol. 13091, 335–364.'
  mla: Chakraborty, Suvradip, et al. “Reverse Firewalls for Adaptively Secure MPC
    without Setup.” <i>27th International Conference on the Theory and Application
    of Cryptology and Information Security</i>, vol. 13091, Springer Nature, 2021,
    pp. 335–64, doi:<a href="https://doi.org/10.1007/978-3-030-92075-3_12">10.1007/978-3-030-92075-3_12</a>.
  short: S. Chakraborty, C. Ganesh, M. Pancholi, P. Sarkar, in:, 27th International
    Conference on the Theory and Application of Cryptology and Information Security,
    Springer Nature, 2021, pp. 335–364.
conference:
  end_date: 2021-12-10
  location: Virtual, Singapore
  name: 'ASIACRYPT: International Conference on Cryptology in Asia'
  start_date: 2021-12-06
date_created: 2022-01-09T23:01:27Z
date_published: 2021-12-01T00:00:00Z
date_updated: 2023-08-17T06:34:41Z
day: '01'
department:
- _id: KrPi
doi: 10.1007/978-3-030-92075-3_12
ec_funded: 1
external_id:
  isi:
  - '000927876200012'
intvolume: '     13091'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://eprint.iacr.org/2021/1262
month: '12'
oa: 1
oa_version: Preprint
page: 335-364
project:
- _id: 258AA5B2-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '682815'
  name: Teaching Old Crypto New Tricks
publication: 27th International Conference on the Theory and Application of Cryptology
  and Information Security
publication_identifier:
  eisbn:
  - 978-3-030-92075-3
  eissn:
  - 1611-3349
  isbn:
  - 978-3-030-92074-6
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Reverse firewalls for adaptively secure MPC without setup
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 13091
year: '2021'
...
---
_id: '10613'
abstract:
- lang: eng
  text: Motivated by the recent preprint [\emph{arXiv:2004.08412}] by Ayala, Carinci,
    and Redig, we first provide a general framework for the study of scaling limits
    of higher-order fields. Then, by considering the same class of infinite interacting
    particle systems as in [\emph{arXiv:2004.08412}], namely symmetric simple exclusion
    and inclusion processes in the d-dimensional Euclidean lattice, we prove the hydrodynamic
    limit, and convergence for the equilibrium fluctuations, of higher-order fields.
    In particular, the limit fields exhibit a tensor structure. Our fluctuation result
    differs from that in [\emph{arXiv:2004.08412}], since we considered-dimensional
    Euclidean lattice, we prove the hydrodynamic limit, and convergence for the equilibrium
    fluctuations, of higher-order fields. In particular, the limit fields exhibit
    a tensor structure. Our fluctuation result differs from that in [\emph{arXiv:2004.08412}],
    since we consider a different notion of higher-order fluctuation fields.
acknowledgement: "F.S. would like to thank Mario Ayala and Frank Redig for useful
  discussions. J.P.C. acknowledges partial financial support from the US National
  Science Foundation (DMS-1855604). F.S. was financially supported by the European
  Union’s Horizon 2020 research and innovation programme under the Marie-Skłodowska-Curie
  grant agreement No. 754411.\r\n"
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Joe P.
  full_name: Chen, Joe P.
  last_name: Chen
- first_name: Federico
  full_name: Sau, Federico
  id: E1836206-9F16-11E9-8814-AEFDE5697425
  last_name: Sau
citation:
  ama: Chen JP, Sau F. Higher-order hydrodynamics and equilibrium fluctuations of
    interacting particle systems. <i>Markov Processes And Related Fields</i>. 2021;27(3):339-380.
  apa: Chen, J. P., &#38; Sau, F. (2021). Higher-order hydrodynamics and equilibrium
    fluctuations of interacting particle systems. <i>Markov Processes And Related
    Fields</i>. Polymat Publishing.
  chicago: Chen, Joe P., and Federico Sau. “Higher-Order Hydrodynamics and Equilibrium
    Fluctuations of Interacting Particle Systems.” <i>Markov Processes And Related
    Fields</i>. Polymat Publishing, 2021.
  ieee: J. P. Chen and F. Sau, “Higher-order hydrodynamics and equilibrium fluctuations
    of interacting particle systems,” <i>Markov Processes And Related Fields</i>,
    vol. 27, no. 3. Polymat Publishing, pp. 339–380, 2021.
  ista: Chen JP, Sau F. 2021. Higher-order hydrodynamics and equilibrium fluctuations
    of interacting particle systems. Markov Processes And Related Fields. 27(3), 339–380.
  mla: Chen, Joe P., and Federico Sau. “Higher-Order Hydrodynamics and Equilibrium
    Fluctuations of Interacting Particle Systems.” <i>Markov Processes And Related
    Fields</i>, vol. 27, no. 3, Polymat Publishing, 2021, pp. 339–80.
  short: J.P. Chen, F. Sau, Markov Processes And Related Fields 27 (2021) 339–380.
date_created: 2022-01-10T14:02:31Z
date_published: 2021-03-16T00:00:00Z
date_updated: 2022-01-10T15:29:08Z
day: '16'
department:
- _id: JaMa
ec_funded: 1
external_id:
  arxiv:
  - '2008.13403'
intvolume: '        27'
issue: '3'
keyword:
- interacting particle systems
- higher-order fields
- hydrodynamic limit
- equilibrium fluctuations
- duality
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2008.13403
month: '03'
oa: 1
oa_version: Preprint
page: 339-380
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Markov Processes And Related Fields
publication_identifier:
  issn:
  - 1024-2953
publication_status: published
publisher: Polymat Publishing
quality_controlled: '1'
related_material:
  link:
  - description: Link to Abstract on publisher's website
    relation: other
    url: http://math-mprf.org/journal/articles/id1614/
  - description: Referred to in Abstract
    relation: used_for_analysis_in
    url: https://arxiv.org/abs/2004.08412
status: public
title: Higher-order hydrodynamics and equilibrium fluctuations of interacting particle
  systems
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 27
year: '2021'
...
---
_id: '10628'
abstract:
- lang: eng
  text: The surface states of 3D topological insulators in general have negligible
    quantum oscillations (QOs) when the chemical potential is tuned to the Dirac points.
    In contrast, we find that topological Kondo insulators (TKIs) can support surface
    states with an arbitrarily large Fermi surface (FS) when the chemical potential
    is pinned to the Dirac point. We illustrate that these FSs give rise to finite-frequency
    QOs, which can become comparable to the extremal area of the unhybridized bulk
    bands. We show that this occurs when the crystal symmetry is lowered from cubic
    to tetragonal in a minimal two-orbital model. We label such surface modes as 'shadow
    surface states'. Moreover, we show that the sufficient next-nearest neighbor out-of-plane
    hybridization leading to shadow surface states can be self-consistently stabilized
    for tetragonal TKIs. Consequently, shadow surface states provide an important
    example of high-frequency QOs beyond the context of cubic TKIs.
acknowledgement: PG acknowledges support from National Science Foundation Awards No.
  DMR-1824265 for this work. AG acknowledges support from the European Union's Horizon
  2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement
  No. 754411. EMN is supported by ASU startup grant. OE is in part supported by NSF-DMR-1904716.
article_number: '123042'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Areg
  full_name: Ghazaryan, Areg
  id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
  last_name: Ghazaryan
  orcid: 0000-0001-9666-3543
- first_name: Emilian M.
  full_name: Nica, Emilian M.
  last_name: Nica
- first_name: Onur
  full_name: Erten, Onur
  last_name: Erten
- first_name: Pouyan
  full_name: Ghaemi, Pouyan
  last_name: Ghaemi
citation:
  ama: Ghazaryan A, Nica EM, Erten O, Ghaemi P. Shadow surface states in topological
    Kondo insulators. <i>New Journal of Physics</i>. 2021;23(12). doi:<a href="https://doi.org/10.1088/1367-2630/ac4124">10.1088/1367-2630/ac4124</a>
  apa: Ghazaryan, A., Nica, E. M., Erten, O., &#38; Ghaemi, P. (2021). Shadow surface
    states in topological Kondo insulators. <i>New Journal of Physics</i>. IOP Publishing.
    <a href="https://doi.org/10.1088/1367-2630/ac4124">https://doi.org/10.1088/1367-2630/ac4124</a>
  chicago: Ghazaryan, Areg, Emilian M. Nica, Onur Erten, and Pouyan Ghaemi. “Shadow
    Surface States in Topological Kondo Insulators.” <i>New Journal of Physics</i>.
    IOP Publishing, 2021. <a href="https://doi.org/10.1088/1367-2630/ac4124">https://doi.org/10.1088/1367-2630/ac4124</a>.
  ieee: A. Ghazaryan, E. M. Nica, O. Erten, and P. Ghaemi, “Shadow surface states
    in topological Kondo insulators,” <i>New Journal of Physics</i>, vol. 23, no.
    12. IOP Publishing, 2021.
  ista: Ghazaryan A, Nica EM, Erten O, Ghaemi P. 2021. Shadow surface states in topological
    Kondo insulators. New Journal of Physics. 23(12), 123042.
  mla: Ghazaryan, Areg, et al. “Shadow Surface States in Topological Kondo Insulators.”
    <i>New Journal of Physics</i>, vol. 23, no. 12, 123042, IOP Publishing, 2021,
    doi:<a href="https://doi.org/10.1088/1367-2630/ac4124">10.1088/1367-2630/ac4124</a>.
  short: A. Ghazaryan, E.M. Nica, O. Erten, P. Ghaemi, New Journal of Physics 23 (2021).
date_created: 2022-01-16T23:01:28Z
date_published: 2021-12-23T00:00:00Z
date_updated: 2023-08-17T06:54:54Z
day: '23'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1088/1367-2630/ac4124
ec_funded: 1
external_id:
  arxiv:
  - '2012.11625'
  isi:
  - '000734063700001'
file:
- access_level: open_access
  checksum: 0c3cb6816242fa8afd1cc87a5fe77821
  content_type: application/pdf
  creator: cchlebak
  date_created: 2022-01-17T10:01:58Z
  date_updated: 2022-01-17T10:01:58Z
  file_id: '10632'
  file_name: 2021_NewJourPhys_Ghazaryan.pdf
  file_size: 2533102
  relation: main_file
  success: 1
file_date_updated: 2022-01-17T10:01:58Z
has_accepted_license: '1'
intvolume: '        23'
isi: 1
issue: '12'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: New Journal of Physics
publication_identifier:
  issn:
  - 1367-2630
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Shadow surface states in topological Kondo insulators
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 23
year: '2021'
...
---
_id: '10629'
abstract:
- lang: eng
  text: "Product graphs arise naturally in formal verification and program analysis.
    For example, the analysis of two concurrent threads requires the product of two
    component control-flow graphs, and for language inclusion of deterministic automata
    the product of two automata is constructed. In many cases, the component graphs
    have constant treewidth, e.g., when the input contains control-flow graphs of
    programs. We consider the algorithmic analysis of products of two constant-treewidth
    graphs with respect to three classic specification languages, namely, (a) algebraic
    properties, (b) mean-payoff properties, and (c) initial credit for energy properties.\r\nOur
    main contributions are as follows. Consider a graph G that is the product of two
    constant-treewidth graphs of size n each. First, given an idempotent semiring,
    we present an algorithm that computes the semiring transitive closure of G in
    time Õ(n⁴). Since the output has size Θ(n⁴), our algorithm is optimal (up to
    polylog factors). Second, given a mean-payoff objective, we present an O(n³)-time
    algorithm for deciding whether the value of a starting state is non-negative,
    improving the previously known O(n⁴) bound. Third, given an initial credit for
    energy objective, we present an O(n⁵)-time algorithm for computing the minimum
    initial credit for all nodes of G, improving the previously known O(n⁸) bound.
    At the heart of our approach lies an algorithm for the efficient construction
    of strongly-balanced tree decompositions of constant-treewidth graphs. Given a
    constant-treewidth graph G' of n nodes and a positive integer λ, our algorithm
    constructs a binary tree decomposition of G' of width O(λ) with the property that
    the size of each subtree decreases geometrically with rate (1/2 + 2^{-λ})."
alternative_title:
- LIPIcs
article_number: '42'
article_processing_charge: No
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: 'Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. Quantitative verification on
    product graphs of small treewidth. In: <i>41st IARCS Annual Conference on Foundations
    of Software Technology and Theoretical Computer Science</i>. Vol 213. Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik; 2021. doi:<a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42">10.4230/LIPIcs.FSTTCS.2021.42</a>'
  apa: 'Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2021). Quantitative
    verification on product graphs of small treewidth. In <i>41st IARCS Annual Conference
    on Foundations of Software Technology and Theoretical Computer Science</i> (Vol.
    213). Virtual: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42</a>'
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis.
    “Quantitative Verification on Product Graphs of Small Treewidth.” In <i>41st IARCS
    Annual Conference on Foundations of Software Technology and Theoretical Computer
    Science</i>, Vol. 213. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021.
    <a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, “Quantitative verification
    on product graphs of small treewidth,” in <i>41st IARCS Annual Conference on Foundations
    of Software Technology and Theoretical Computer Science</i>, Virtual, 2021, vol.
    213.
  ista: 'Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2021. Quantitative verification
    on product graphs of small treewidth. 41st IARCS Annual Conference on Foundations
    of Software Technology and Theoretical Computer Science. FSTTCS: Foundations of
    Software Technology and Theoretical Computer Science, LIPIcs, vol. 213, 42.'
  mla: Chatterjee, Krishnendu, et al. “Quantitative Verification on Product Graphs
    of Small Treewidth.” <i>41st IARCS Annual Conference on Foundations of Software
    Technology and Theoretical Computer Science</i>, vol. 213, 42, Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik, 2021, doi:<a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42">10.4230/LIPIcs.FSTTCS.2021.42</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, in:, 41st IARCS Annual Conference
    on Foundations of Software Technology and Theoretical Computer Science, Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2021.
conference:
  end_date: 2021-12-17
  location: Virtual
  name: 'FSTTCS: Foundations of Software Technology and Theoretical Computer Science'
  start_date: 2021-12-15
date_created: 2022-01-16T23:01:28Z
date_published: 2021-11-29T00:00:00Z
date_updated: 2022-01-17T10:39:40Z
day: '29'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.4230/LIPIcs.FSTTCS.2021.42
file:
- access_level: open_access
  checksum: 71141acdeffa9056f24d6dbef952d254
  content_type: application/pdf
  creator: cchlebak
  date_created: 2022-01-17T10:36:08Z
  date_updated: 2022-01-17T10:36:08Z
  file_id: '10633'
  file_name: 2021_LIPIcs_Chatterjee.pdf
  file_size: 891566
  relation: main_file
  success: 1
file_date_updated: 2022-01-17T10:36:08Z
has_accepted_license: '1'
intvolume: '       213'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
publication: 41st IARCS Annual Conference on Foundations of Software Technology and
  Theoretical Computer Science
publication_identifier:
  isbn:
  - 978-3-9597-7215-0
  issn:
  - 1868-8969
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantitative verification on product graphs of small treewidth
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 213
year: '2021'
...
---
_id: '10630'
abstract:
- lang: eng
  text: In the Intersection Non-emptiness problem, we are given a list of finite automata
    A_1, A_2,… , A_m over a common alphabet Σ as input, and the goal is to determine
    whether some string w ∈ Σ^* lies in the intersection of the languages accepted
    by the automata in the list. We analyze the complexity of the Intersection Non-emptiness
    problem under the promise that all input automata accept a language in some level
    of the dot-depth hierarchy, or some level of the Straubing-Thérien hierarchy.
    Automata accepting languages from the lowest levels of these hierarchies arise
    naturally in the context of model checking. We identify a dichotomy in the dot-depth
    hierarchy by showing that the problem is already NP-complete when all input automata
    accept languages of the levels B_0 or B_{1/2} and already PSPACE-hard when all
    automata accept a language from the level B_1. Conversely, we identify a tetrachotomy
    in the Straubing-Thérien hierarchy. More precisely, we show that the problem is
    in AC^0 when restricted to level L_0; complete for L or NL, depending on the input
    representation, when restricted to languages in the level L_{1/2}; NP-complete
    when the input is given as DFAs accepting a language in L_1 or L_{3/2}; and finally,
    PSPACE-complete when the input automata accept languages in level L_2 or higher.
    Moreover, we show that the proof technique used to show containment in NP for
    DFAs accepting languages in L_1 or L_{3/2} does not generalize to the context
    of NFAs. To prove this, we identify a family of languages that provide an exponential
    separation between the state complexity of general NFAs and that of partially
    ordered NFAs. To the best of our knowledge, this is the first superpolynomial
    separation between these two models of computation.
acknowledgement: "We like to thank Lukas Fleischer and Michael Wehar for our discussions.
  This work started at the Schloss Dagstuhl Event 20483 Moderne Aspekte der Komplexitätstheorie
  in der Automatentheorie https://www.dagstuhl.de/20483.\r\n"
alternative_title:
- LIPIcs
article_number: '34'
article_processing_charge: No
arxiv: 1
author:
- first_name: Emmanuel
  full_name: Arrighi, Emmanuel
  last_name: Arrighi
- first_name: Henning
  full_name: Fernau, Henning
  last_name: Fernau
- first_name: Stefan
  full_name: Hoffmann, Stefan
  last_name: Hoffmann
- first_name: Markus
  full_name: Holzer, Markus
  last_name: Holzer
- first_name: Ismael R
  full_name: Jecker, Ismael R
  id: 85D7C63E-7D5D-11E9-9C0F-98C4E5697425
  last_name: Jecker
- first_name: Mateus
  full_name: De Oliveira Oliveira, Mateus
  last_name: De Oliveira Oliveira
- first_name: Petra
  full_name: Wolf, Petra
  last_name: Wolf
citation:
  ama: 'Arrighi E, Fernau H, Hoffmann S, et al. On the complexity of intersection
    non-emptiness for star-free language classes. In: <i>41st IARCS Annual Conference
    on Foundations of Software Technology and Theoretical Computer Science</i>. Vol
    213. Schloss Dagstuhl - Leibniz Zentrum für Informatik; 2021. doi:<a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34">10.4230/LIPIcs.FSTTCS.2021.34</a>'
  apa: 'Arrighi, E., Fernau, H., Hoffmann, S., Holzer, M., Jecker, I. R., De Oliveira
    Oliveira, M., &#38; Wolf, P. (2021). On the complexity of intersection non-emptiness
    for star-free language classes. In <i>41st IARCS Annual Conference on Foundations
    of Software Technology and Theoretical Computer Science</i> (Vol. 213). Virtual:
    Schloss Dagstuhl - Leibniz Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34</a>'
  chicago: Arrighi, Emmanuel, Henning Fernau, Stefan Hoffmann, Markus Holzer, Ismael
    R Jecker, Mateus De Oliveira Oliveira, and Petra Wolf. “On the Complexity of Intersection
    Non-Emptiness for Star-Free Language Classes.” In <i>41st IARCS Annual Conference
    on Foundations of Software Technology and Theoretical Computer Science</i>, Vol.
    213. Schloss Dagstuhl - Leibniz Zentrum für Informatik, 2021. <a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34</a>.
  ieee: E. Arrighi <i>et al.</i>, “On the complexity of intersection non-emptiness
    for star-free language classes,” in <i>41st IARCS Annual Conference on Foundations
    of Software Technology and Theoretical Computer Science</i>, Virtual, 2021, vol.
    213.
  ista: 'Arrighi E, Fernau H, Hoffmann S, Holzer M, Jecker IR, De Oliveira Oliveira
    M, Wolf P. 2021. On the complexity of intersection non-emptiness for star-free
    language classes. 41st IARCS Annual Conference on Foundations of Software Technology
    and Theoretical Computer Science. FSTTCS: Foundations of Software Technology and
    Theoretical Computer Science, LIPIcs, vol. 213, 34.'
  mla: Arrighi, Emmanuel, et al. “On the Complexity of Intersection Non-Emptiness
    for Star-Free Language Classes.” <i>41st IARCS Annual Conference on Foundations
    of Software Technology and Theoretical Computer Science</i>, vol. 213, 34, Schloss
    Dagstuhl - Leibniz Zentrum für Informatik, 2021, doi:<a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34">10.4230/LIPIcs.FSTTCS.2021.34</a>.
  short: E. Arrighi, H. Fernau, S. Hoffmann, M. Holzer, I.R. Jecker, M. De Oliveira
    Oliveira, P. Wolf, in:, 41st IARCS Annual Conference on Foundations of Software
    Technology and Theoretical Computer Science, Schloss Dagstuhl - Leibniz Zentrum
    für Informatik, 2021.
conference:
  end_date: 2021-12-17
  location: Virtual
  name: 'FSTTCS: Foundations of Software Technology and Theoretical Computer Science'
  start_date: 2021-12-15
date_created: 2022-01-16T23:01:29Z
date_published: 2021-11-29T00:00:00Z
date_updated: 2022-01-17T10:56:19Z
day: '29'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.4230/LIPIcs.FSTTCS.2021.34
ec_funded: 1
external_id:
  arxiv:
  - '2110.01279'
file:
- access_level: open_access
  checksum: d5a82ba893c3bc5da5914edbb3efb92b
  content_type: application/pdf
  creator: cchlebak
  date_created: 2022-01-17T10:49:03Z
  date_updated: 2022-01-17T10:49:03Z
  file_id: '10634'
  file_name: 2021_LIPIcs_Arrighi.pdf
  file_size: 844224
  relation: main_file
  success: 1
file_date_updated: 2022-01-17T10:49:03Z
has_accepted_license: '1'
intvolume: '       213'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: 41st IARCS Annual Conference on Foundations of Software Technology and
  Theoretical Computer Science
publication_identifier:
  isbn:
  - 978-3-9597-7215-0
  issn:
  - 1868-8969
publication_status: published
publisher: Schloss Dagstuhl - Leibniz Zentrum für Informatik
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the complexity of intersection non-emptiness for star-free language classes
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 213
year: '2021'
...
---
_id: '10631'
abstract:
- lang: eng
  text: We combine experimental and theoretical approaches to explore excited rotational
    states of molecules embedded in helium nanodroplets using CS2 and I2 as examples.
    Laser-induced nonadiabatic molecular alignment is employed to measure spectral
    lines for rotational states extending beyond those initially populated at the
    0.37 K droplet temperature. We construct a simple quantum-mechanical model, based
    on a linear rotor coupled to a single-mode bosonic bath, to determine the rotational
    energy structure in its entirety. The calculated and measured spectral lines are
    in good agreement. We show that the effect of the surrounding superfluid on molecular
    rotation can be rationalized by a single quantity, the angular momentum, transferred
    from the molecule to the droplet.
acknowledgement: I.C. acknowledges the support by the European Union’s Horizon 2020
  research and innovation programme under the Marie Sklodowska-Curie Grant Agreement
  No. 665385. G.B. acknowledges support from the Austrian Science Fund (FWF), under
  project No. M2461-N27. M.L. acknowledges support by the Austrian Science Fund (FWF),
  under project No. P29902-N27, and by the European Research Council (ERC) Starting
  Grant No. 801770 (ANGULON). H.S acknowledges support from the European Research
  Council-AdG (Project No. 320459, DropletControl) and from The Villum Foundation
  through a Villum Investigator grant no. 25886.
article_number: L061303
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Igor
  full_name: Cherepanov, Igor
  id: 339C7E5A-F248-11E8-B48F-1D18A9856A87
  last_name: Cherepanov
- first_name: Giacomo
  full_name: Bighin, Giacomo
  id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87
  last_name: Bighin
  orcid: 0000-0001-8823-9777
- first_name: Constant A.
  full_name: Schouder, Constant A.
  last_name: Schouder
- first_name: Adam S.
  full_name: Chatterley, Adam S.
  last_name: Chatterley
- first_name: Simon H.
  full_name: Albrechtsen, Simon H.
  last_name: Albrechtsen
- first_name: Alberto Viñas
  full_name: Muñoz, Alberto Viñas
  last_name: Muñoz
- first_name: Lars
  full_name: Christiansen, Lars
  last_name: Christiansen
- first_name: Henrik
  full_name: Stapelfeldt, Henrik
  last_name: Stapelfeldt
- first_name: Mikhail
  full_name: Lemeshko, Mikhail
  id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
  last_name: Lemeshko
  orcid: 0000-0002-6990-7802
citation:
  ama: Cherepanov I, Bighin G, Schouder CA, et al. Excited rotational states of molecules
    in a superfluid. <i>Physical Review A</i>. 2021;104(6). doi:<a href="https://doi.org/10.1103/PhysRevA.104.L061303">10.1103/PhysRevA.104.L061303</a>
  apa: Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Albrechtsen,
    S. H., Muñoz, A. V., … Lemeshko, M. (2021). Excited rotational states of molecules
    in a superfluid. <i>Physical Review A</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevA.104.L061303">https://doi.org/10.1103/PhysRevA.104.L061303</a>
  chicago: Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley,
    Simon H. Albrechtsen, Alberto Viñas Muñoz, Lars Christiansen, Henrik Stapelfeldt,
    and Mikhail Lemeshko. “Excited Rotational States of Molecules in a Superfluid.”
    <i>Physical Review A</i>. American Physical Society, 2021. <a href="https://doi.org/10.1103/PhysRevA.104.L061303">https://doi.org/10.1103/PhysRevA.104.L061303</a>.
  ieee: I. Cherepanov <i>et al.</i>, “Excited rotational states of molecules in a
    superfluid,” <i>Physical Review A</i>, vol. 104, no. 6. American Physical Society,
    2021.
  ista: Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Albrechtsen SH, Muñoz
    AV, Christiansen L, Stapelfeldt H, Lemeshko M. 2021. Excited rotational states
    of molecules in a superfluid. Physical Review A. 104(6), L061303.
  mla: Cherepanov, Igor, et al. “Excited Rotational States of Molecules in a Superfluid.”
    <i>Physical Review A</i>, vol. 104, no. 6, L061303, American Physical Society,
    2021, doi:<a href="https://doi.org/10.1103/PhysRevA.104.L061303">10.1103/PhysRevA.104.L061303</a>.
  short: I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, S.H. Albrechtsen,
    A.V. Muñoz, L. Christiansen, H. Stapelfeldt, M. Lemeshko, Physical Review A 104
    (2021).
date_created: 2022-01-16T23:01:29Z
date_published: 2021-12-30T00:00:00Z
date_updated: 2024-08-07T07:16:52Z
day: '30'
department:
- _id: MiLe
doi: 10.1103/PhysRevA.104.L061303
ec_funded: 1
external_id:
  arxiv:
  - '2107.00468'
  isi:
  - '000739618300001'
intvolume: '       104'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://128.84.4.18/abs/2107.00468
month: '12'
oa: 1
oa_version: Preprint
project:
- _id: 26031614-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P29902
  name: Quantum rotations in the presence of a many-body environment
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '801770'
  name: 'Angulon: physics and applications of a new quasiparticle'
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _id: 26986C82-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02641
  name: A path-integral approach to composite impurities
publication: Physical Review A
publication_identifier:
  eissn:
  - 2469-9934
  issn:
  - 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Excited rotational states of molecules in a superfluid
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 104
year: '2021'
...
---
_id: '10635'
abstract:
- lang: eng
  text: The brain efficiently performs nonlinear computations through its intricate
    networks of spiking neurons, but how this is done remains elusive. While nonlinear
    computations can be implemented successfully in spiking neural networks, this
    requires supervised training and the resulting connectivity can be hard to interpret.
    In contrast, the required connectivity for any computation in the form of a linear
    dynamical system can be directly derived and understood with the spike coding
    network (SCN) framework. These networks also have biologically realistic activity
    patterns and are highly robust to cell death. Here we extend the SCN framework
    to directly implement any polynomial dynamical system, without the need for training.
    This results in networks requiring a mix of synapse types (fast, slow, and multiplicative),
    which we term multiplicative spike coding networks (mSCNs). Using mSCNs, we demonstrate
    how to directly derive the required connectivity for several nonlinear dynamical
    systems. We also show how to carry out higher-order polynomials with coupled networks
    that use only pair-wise multiplicative synapses, and provide expected numbers
    of connections for each synapse type. Overall, our work demonstrates a novel method
    for implementing nonlinear computations in spiking neural networks, while keeping
    the attractive features of standard SCNs (robustness, realistic activity patterns,
    and interpretable connectivity). Finally, we discuss the biological plausibility
    of our approach, and how the high accuracy and robustness of the approach may
    be of interest for neuromorphic computing.
acknowledgement: "A preprint version of this article has been peer-reviewed and recommended
  by Peer Community In Neuroscience (DOI link to the recommendation: https://doi.org/10.24072/pci.cneuro.100003).\r\nWe
  thank Christian Machens and Nuno Calaim for useful discussions on the project. This
  report\r\ncame out of a collaboration started at the CAJAL Advanced Neuroscience
  Training Programme in\r\nComputational Neuroscience in Lisbon, Portugal, during
  the 2019 summer. The authors would\r\nlike to thank the participants, TAs, lecturers,
  and organizers of the summer school. SWK was\r\nsupported by the Simons Collaboration
  on the Global Brain (543009). WFP was supported by\r\nFCT (032077). MN was supported
  by European Union Horizon 2020 (665385).\r\n"
article_number: e68
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Michele
  full_name: Nardin, Michele
  id: 30BD0376-F248-11E8-B48F-1D18A9856A87
  last_name: Nardin
  orcid: 0000-0001-8849-6570
- first_name: James W.
  full_name: Phillips, James W.
  last_name: Phillips
- first_name: William F.
  full_name: Podlaski, William F.
  last_name: Podlaski
- first_name: Sander W.
  full_name: Keemink, Sander W.
  last_name: Keemink
citation:
  ama: Nardin M, Phillips JW, Podlaski WF, Keemink SW. Nonlinear computations in spiking
    neural networks through multiplicative synapses. <i>Peer Community Journal</i>.
    2021;1. doi:<a href="https://doi.org/10.24072/pcjournal.69">10.24072/pcjournal.69</a>
  apa: Nardin, M., Phillips, J. W., Podlaski, W. F., &#38; Keemink, S. W. (2021).
    Nonlinear computations in spiking neural networks through multiplicative synapses.
    <i>Peer Community Journal</i>. Centre Mersenne ; Peer Community In. <a href="https://doi.org/10.24072/pcjournal.69">https://doi.org/10.24072/pcjournal.69</a>
  chicago: Nardin, Michele, James W. Phillips, William F. Podlaski, and Sander W.
    Keemink. “Nonlinear Computations in Spiking Neural Networks through Multiplicative
    Synapses.” <i>Peer Community Journal</i>. Centre Mersenne ; Peer Community In,
    2021. <a href="https://doi.org/10.24072/pcjournal.69">https://doi.org/10.24072/pcjournal.69</a>.
  ieee: M. Nardin, J. W. Phillips, W. F. Podlaski, and S. W. Keemink, “Nonlinear computations
    in spiking neural networks through multiplicative synapses,” <i>Peer Community
    Journal</i>, vol. 1. Centre Mersenne ; Peer Community In, 2021.
  ista: Nardin M, Phillips JW, Podlaski WF, Keemink SW. 2021. Nonlinear computations
    in spiking neural networks through multiplicative synapses. Peer Community Journal.
    1, e68.
  mla: Nardin, Michele, et al. “Nonlinear Computations in Spiking Neural Networks
    through Multiplicative Synapses.” <i>Peer Community Journal</i>, vol. 1, e68,
    Centre Mersenne ; Peer Community In, 2021, doi:<a href="https://doi.org/10.24072/pcjournal.69">10.24072/pcjournal.69</a>.
  short: M. Nardin, J.W. Phillips, W.F. Podlaski, S.W. Keemink, Peer Community Journal
    1 (2021).
date_created: 2022-01-17T11:12:40Z
date_published: 2021-12-15T00:00:00Z
date_updated: 2022-01-17T13:30:01Z
day: '15'
ddc:
- '519'
department:
- _id: GradSch
- _id: JoCs
doi: 10.24072/pcjournal.69
ec_funded: 1
external_id:
  arxiv:
  - '2009.03857'
file:
- access_level: open_access
  checksum: cd9af6b331918608f2e3d1c7940cbf4f
  content_type: application/pdf
  creator: mnardin
  date_created: 2022-01-17T11:15:26Z
  date_updated: 2022-01-17T11:15:26Z
  file_id: '10636'
  file_name: 10_24072_pcjournal_69.pdf
  file_size: 3311494
  relation: main_file
  success: 1
file_date_updated: 2022-01-17T11:15:26Z
has_accepted_license: '1'
intvolume: '         1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: Peer Community Journal
publication_identifier:
  eissn:
  - 2804-3871
publication_status: published
publisher: Centre Mersenne ; Peer Community In
quality_controlled: '1'
status: public
title: Nonlinear computations in spiking neural networks through multiplicative synapses
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 1
year: '2021'
...
---
_id: '10644'
abstract:
- lang: eng
  text: The purpose of this application note is to demonstrate a working example of
    a superconducting qubit measurement in a Bluefors cryostat using the Keysight
    quantum control hardware. Our motivation is twofold. First, we provide pre-qualification
    data that the Bluefors cryostat, including filtering and wiring, can support long-lived
    qubits. Second, we demonstrate that the Keysight system (controlled using Labber)
    provides a straightforward solution to perform these characterization measurements.
    This document is intended as a brief guide for starting an experimental platform
    for testing superconducting qubits. The setup described here is an immediate jumping
    off point for a suite of applications including testing quantum logical gates,
    quantum optics with microwaves, or even using the qubit itself as a sensitive
    probe of local electromagnetic fields. Qubit measurements rely on high performance
    of both the physical sample environment and the measurement electronics. An overview
    of the cryogenic system is shown in Figure 1, and an overview of the integration
    between the electronics and cryostat (including wiring details) is shown in Figure
    2.
alternative_title:
- Bluefors Blog
article_processing_charge: No
author:
- first_name: Russell
  full_name: Lake, Russell
  last_name: Lake
- first_name: Slawomir
  full_name: Simbierowicz, Slawomir
  last_name: Simbierowicz
- first_name: Philip
  full_name: Krantz, Philip
  last_name: Krantz
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: 'Lake R, Simbierowicz S, Krantz P, Hassani F, Fink JM. <i>The Bluefors Dilution
    Refrigerator as an Integrated Quantum Measurement System</i>. Helsinki, Finland:
    Bluefors Oy; 2021.'
  apa: 'Lake, R., Simbierowicz, S., Krantz, P., Hassani, F., &#38; Fink, J. M. (2021).
    <i>The Bluefors dilution refrigerator as an integrated quantum measurement system</i>.
    Helsinki, Finland: Bluefors Oy.'
  chicago: 'Lake, Russell, Slawomir Simbierowicz, Philip Krantz, Farid Hassani, and
    Johannes M Fink. <i>The Bluefors Dilution Refrigerator as an Integrated Quantum
    Measurement System</i>. Helsinki, Finland: Bluefors Oy, 2021.'
  ieee: 'R. Lake, S. Simbierowicz, P. Krantz, F. Hassani, and J. M. Fink, <i>The Bluefors
    dilution refrigerator as an integrated quantum measurement system</i>. Helsinki,
    Finland: Bluefors Oy, 2021.'
  ista: 'Lake R, Simbierowicz S, Krantz P, Hassani F, Fink JM. 2021. The Bluefors
    dilution refrigerator as an integrated quantum measurement system, Helsinki, Finland:
    Bluefors Oy, 9p.'
  mla: Lake, Russell, et al. <i>The Bluefors Dilution Refrigerator as an Integrated
    Quantum Measurement System</i>. Bluefors Oy, 2021.
  short: R. Lake, S. Simbierowicz, P. Krantz, F. Hassani, J.M. Fink, The Bluefors
    Dilution Refrigerator as an Integrated Quantum Measurement System, Bluefors Oy,
    Helsinki, Finland, 2021.
date_created: 2022-01-19T08:29:57Z
date_published: 2021-04-20T00:00:00Z
date_updated: 2022-01-19T09:11:33Z
day: '20'
department:
- _id: JoFi
keyword:
- Application note
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://bluefors.com/blog/integrated-quantum-measurement-system/
month: '04'
oa: 1
oa_version: Published Version
page: '9'
place: Helsinki, Finland
publication_status: published
publisher: Bluefors Oy
quality_controlled: '1'
status: public
title: The Bluefors dilution refrigerator as an integrated quantum measurement system
type: other_academic_publication
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '10645'
abstract:
- lang: eng
  text: "Superconducting qubits have emerged as a highly versatile and useful platform
    for quantum technological applications [1]. Bluefors and Zurich Instruments have
    supported the growth of this field from the 2010s onwards by providing well-engineered
    and reliable measurement infrastructure [2]– [6]. Having a long and stable qubit
    lifetime is a critical system property. Therefore, considerable effort has already
    gone into measuring qubit energy-relaxation timescales and their fluctuations,
    see Refs. [7]–[10] among others. Accurately extracting the statistics of a quantum
    device requires users to perform time consuming measurements. One measurement
    challenge is that the detection of the state-dependent\r\nresponse of a superconducting
    resonator due to a dispersively-coupled qubit requires an inherently low signal
    level. Consequently, measurements must be performed using a microwave probe that
    contains only a few microwave photons. Improving the signal-to-noise ratio (SNR)
    by using near-quantum limited parametric amplifiers as well as the use of optimized
    signal processing enabled by efficient room temperature instrumentation help to
    reduce measurement time. An empirical observation for fixed frequency transmons
    from recent literature is that as the energy-relaxation time \U0001D447\U0001D4471
    increases, so do its natural temporal fluctuations [7], [10]. This necessitates
    many repeated measurements to understand the statistics (see for example, Ref.
    [10]). In addition, as state-of-the-art qubits increase in lifetime, longer\r\nmeasurement
    times are expected to obtain accurate statistics. As described below, the scaling
    of the widths of the qubit energy-relaxation distributions also reveal clues about
    the origin of the energy-relaxation."
alternative_title:
- Bluefors Blog
article_processing_charge: No
author:
- first_name: Slawomir
  full_name: Simbierowicz, Slawomir
  last_name: Simbierowicz
- first_name: Chunyan
  full_name: Shi, Chunyan
  last_name: Shi
- first_name: Michele
  full_name: Collodo, Michele
  last_name: Collodo
- first_name: Moritz
  full_name: Kirste, Moritz
  last_name: Kirste
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
- first_name: Jonas
  full_name: Bylander, Jonas
  last_name: Bylander
- first_name: Daniel
  full_name: Perez Lozano, Daniel
  last_name: Perez Lozano
- first_name: Russell
  full_name: Lake, Russell
  last_name: Lake
citation:
  ama: 'Simbierowicz S, Shi C, Collodo M, et al. <i>Qubit Energy-Relaxation Statistics
    in the Bluefors Quantum Measurement System</i>. Helsinki, Finland: Bluefors Oy;
    2021.'
  apa: 'Simbierowicz, S., Shi, C., Collodo, M., Kirste, M., Hassani, F., Fink, J.
    M., … Lake, R. (2021). <i>Qubit energy-relaxation statistics in the Bluefors quantum
    measurement system</i>. Helsinki, Finland: Bluefors Oy.'
  chicago: 'Simbierowicz, Slawomir, Chunyan Shi, Michele Collodo, Moritz Kirste, Farid
    Hassani, Johannes M Fink, Jonas Bylander, Daniel Perez Lozano, and Russell Lake.
    <i>Qubit Energy-Relaxation Statistics in the Bluefors Quantum Measurement System</i>.
    Helsinki, Finland: Bluefors Oy, 2021.'
  ieee: 'S. Simbierowicz <i>et al.</i>, <i>Qubit energy-relaxation statistics in the
    Bluefors quantum measurement system</i>. Helsinki, Finland: Bluefors Oy, 2021.'
  ista: 'Simbierowicz S, Shi C, Collodo M, Kirste M, Hassani F, Fink JM, Bylander
    J, Perez Lozano D, Lake R. 2021. Qubit energy-relaxation statistics in the Bluefors
    quantum measurement system, Helsinki, Finland: Bluefors Oy, 8p.'
  mla: Simbierowicz, Slawomir, et al. <i>Qubit Energy-Relaxation Statistics in the
    Bluefors Quantum Measurement System</i>. Bluefors Oy, 2021.
  short: S. Simbierowicz, C. Shi, M. Collodo, M. Kirste, F. Hassani, J.M. Fink, J.
    Bylander, D. Perez Lozano, R. Lake, Qubit Energy-Relaxation Statistics in the
    Bluefors Quantum Measurement System, Bluefors Oy, Helsinki, Finland, 2021.
date_created: 2022-01-19T08:41:14Z
date_published: 2021-06-03T00:00:00Z
date_updated: 2022-01-19T09:11:39Z
day: '03'
department:
- _id: JoFi
keyword:
- Application note
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://bluefors.com/blog/application-note-qubit-energy-relaxation-statistics-bluefors-quantum-measurement-system/
month: '06'
oa: 1
oa_version: Published Version
page: '8'
place: Helsinki, Finland
publication_status: published
publisher: Bluefors Oy
quality_controlled: '1'
status: public
title: Qubit energy-relaxation statistics in the Bluefors quantum measurement system
type: other_academic_publication
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '10655'
abstract:
- lang: eng
  text: "Adeno-associated viruses (AAVs) are widely used to deliver genetic material
    in vivo to distinct cell types such as neurons or glial cells, allowing for targeted
    manipulation. Transduction of microglia is mostly excluded from this strategy,
    likely due to the cells’ heterogeneous state upon environmental changes, which
    makes AAV design challenging. Here, we established the retina as a model system
    for microglial AAV validation and optimization. First, we show that AAV2/6 transduced
    microglia in both synaptic layers, where layer preference corresponds to the intravitreal
    or subretinal delivery method. Surprisingly, we observed significantly enhanced
    microglial transduction during photoreceptor degeneration. Thus, we modified the
    AAV6 capsid to reduce heparin binding by introducing four point mutations (K531E,
    R576Q, K493S, and K459S), resulting in increased microglial transduction in the
    outer plexiform layer. Finally, to improve microglial-specific transduction, we
    validated a Cre-dependent transgene delivery cassette for use in combination with
    the Cx3cr1CreERT2 mouse line. Together, our results provide a foundation for future
    studies optimizing AAV-mediated microglia transduction and highlight that environmental
    conditions influence microglial transduction efficiency.\r\n"
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: PreCl
acknowledgement: This project has received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement no. 715571). The research was supported by the Scientific Service
  Units (SSU) of IST Austria through resources provided by the Bioimaging Facility,
  the Life Science Facility, and the Pre-Clinical Facility, namely Sonja Haslinger
  and Michael Schunn for their animal colony management and support. We would also
  like to thank Chakrabarty Lab for sharing the plasmids for AAV2/6 production. Finally,
  we would like to thank the Siegert team members for discussion about the manuscript.
article_processing_charge: Yes
article_type: original
author:
- first_name: Margaret E
  full_name: Maes, Margaret E
  id: 3838F452-F248-11E8-B48F-1D18A9856A87
  last_name: Maes
  orcid: 0000-0001-9642-1085
- first_name: Gabriele M.
  full_name: Wögenstein, Gabriele M.
  last_name: Wögenstein
- first_name: Gloria
  full_name: Colombo, Gloria
  id: 3483CF6C-F248-11E8-B48F-1D18A9856A87
  last_name: Colombo
  orcid: 0000-0001-9434-8902
- first_name: Raquel
  full_name: Casado Polanco, Raquel
  id: 15240fc1-dbcd-11ea-9d1d-ac5a786425fd
  last_name: Casado Polanco
  orcid: 0000-0001-8293-4568
- first_name: Sandra
  full_name: Siegert, Sandra
  id: 36ACD32E-F248-11E8-B48F-1D18A9856A87
  last_name: Siegert
  orcid: 0000-0001-8635-0877
citation:
  ama: Maes ME, Wögenstein GM, Colombo G, Casado Polanco R, Siegert S. Optimizing
    AAV2/6 microglial targeting identified enhanced efficiency in the photoreceptor
    degenerative environment. <i>Molecular Therapy - Methods and Clinical Development</i>.
    2021;23:210-224. doi:<a href="https://doi.org/10.1016/j.omtm.2021.09.006">10.1016/j.omtm.2021.09.006</a>
  apa: Maes, M. E., Wögenstein, G. M., Colombo, G., Casado Polanco, R., &#38; Siegert,
    S. (2021). Optimizing AAV2/6 microglial targeting identified enhanced efficiency
    in the photoreceptor degenerative environment. <i>Molecular Therapy - Methods
    and Clinical Development</i>. Elsevier. <a href="https://doi.org/10.1016/j.omtm.2021.09.006">https://doi.org/10.1016/j.omtm.2021.09.006</a>
  chicago: Maes, Margaret E, Gabriele M. Wögenstein, Gloria Colombo, Raquel Casado
    Polanco, and Sandra Siegert. “Optimizing AAV2/6 Microglial Targeting Identified
    Enhanced Efficiency in the Photoreceptor Degenerative Environment.” <i>Molecular
    Therapy - Methods and Clinical Development</i>. Elsevier, 2021. <a href="https://doi.org/10.1016/j.omtm.2021.09.006">https://doi.org/10.1016/j.omtm.2021.09.006</a>.
  ieee: M. E. Maes, G. M. Wögenstein, G. Colombo, R. Casado Polanco, and S. Siegert,
    “Optimizing AAV2/6 microglial targeting identified enhanced efficiency in the
    photoreceptor degenerative environment,” <i>Molecular Therapy - Methods and Clinical
    Development</i>, vol. 23. Elsevier, pp. 210–224, 2021.
  ista: Maes ME, Wögenstein GM, Colombo G, Casado Polanco R, Siegert S. 2021. Optimizing
    AAV2/6 microglial targeting identified enhanced efficiency in the photoreceptor
    degenerative environment. Molecular Therapy - Methods and Clinical Development.
    23, 210–224.
  mla: Maes, Margaret E., et al. “Optimizing AAV2/6 Microglial Targeting Identified
    Enhanced Efficiency in the Photoreceptor Degenerative Environment.” <i>Molecular
    Therapy - Methods and Clinical Development</i>, vol. 23, Elsevier, 2021, pp. 210–24,
    doi:<a href="https://doi.org/10.1016/j.omtm.2021.09.006">10.1016/j.omtm.2021.09.006</a>.
  short: M.E. Maes, G.M. Wögenstein, G. Colombo, R. Casado Polanco, S. Siegert, Molecular
    Therapy - Methods and Clinical Development 23 (2021) 210–224.
date_created: 2022-01-23T23:01:28Z
date_published: 2021-12-10T00:00:00Z
date_updated: 2023-11-16T13:12:03Z
day: '10'
ddc:
- '570'
department:
- _id: SaSi
- _id: SiHi
doi: 10.1016/j.omtm.2021.09.006
ec_funded: 1
external_id:
  isi:
  - '000748748500019'
file:
- access_level: open_access
  checksum: 77dc540e8011c5475031bdf6ccef20a6
  content_type: application/pdf
  creator: cchlebak
  date_created: 2022-01-24T07:43:09Z
  date_updated: 2022-01-24T07:43:09Z
  file_id: '10657'
  file_name: 2021_MolTherMethodsClinDev_Maes.pdf
  file_size: 4794147
  relation: main_file
  success: 1
file_date_updated: 2022-01-24T07:43:09Z
has_accepted_license: '1'
intvolume: '        23'
isi: 1
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: 210-224
project:
- _id: 25D4A630-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715571'
  name: Microglia action towards neuronal circuit formation and function in health
    and disease
publication: Molecular Therapy - Methods and Clinical Development
publication_identifier:
  eissn:
  - 2329-0501
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optimizing AAV2/6 microglial targeting identified enhanced efficiency in the
  photoreceptor degenerative environment
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 23
year: '2021'
...
---
_id: '10665'
abstract:
- lang: eng
  text: "Formal verification of neural networks is an active topic of research, and
    recent advances have significantly increased the size of the networks that verification
    tools can handle. However, most methods are designed for verification of an idealized
    model of the actual network which works over real arithmetic and ignores rounding
    imprecisions. This idealization is in stark contrast to network quantization,
    which is a technique that trades numerical precision for computational efficiency
    and is, therefore, often applied in practice. Neglecting rounding errors of such
    low-bit quantized neural networks has been shown to lead to wrong conclusions
    about the network’s correctness. Thus, the desired approach for verifying quantized
    neural networks would be one that takes these rounding errors\r\ninto account.
    In this paper, we show that verifying the bitexact implementation of quantized
    neural networks with bitvector specifications is PSPACE-hard, even though verifying
    idealized real-valued networks and satisfiability of bit-vector specifications
    alone are each in NP. Furthermore, we explore several practical heuristics toward
    closing the complexity gap between idealized and bit-exact verification. In particular,
    we propose three techniques for making SMT-based verification of quantized neural
    networks more scalable. Our experiments demonstrate that our proposed methods
    allow a speedup of up to three orders of magnitude over existing approaches."
acknowledgement: "This research was supported in part by the Austrian Science Fund
  (FWF) under grant Z211-N23 (Wittgenstein\r\nAward), ERC CoG 863818 (FoRM-SMArt),
  and the European Union’s Horizon 2020 research and innovation programme under the
  Marie Skłodowska-Curie Grant Agreement No. 665385.\r\n"
alternative_title:
- Technical Tracks
article_processing_charge: No
arxiv: 1
author:
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000-0002-2985-7724
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Dorde
  full_name: Zikelic, Dorde
  id: 294AA7A6-F248-11E8-B48F-1D18A9856A87
  last_name: Zikelic
  orcid: 0000-0002-4681-1699
citation:
  ama: 'Henzinger TA, Lechner M, Zikelic D. Scalable verification of quantized neural
    networks. In: <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>.
    Vol 35. AAAI Press; 2021:3787-3795.'
  apa: 'Henzinger, T. A., Lechner, M., &#38; Zikelic, D. (2021). Scalable verification
    of quantized neural networks. In <i>Proceedings of the AAAI Conference on Artificial
    Intelligence</i> (Vol. 35, pp. 3787–3795). Virtual: AAAI Press.'
  chicago: Henzinger, Thomas A, Mathias Lechner, and Dorde Zikelic. “Scalable Verification
    of Quantized Neural Networks.” In <i>Proceedings of the AAAI Conference on Artificial
    Intelligence</i>, 35:3787–95. AAAI Press, 2021.
  ieee: T. A. Henzinger, M. Lechner, and D. Zikelic, “Scalable verification of quantized
    neural networks,” in <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>,
    Virtual, 2021, vol. 35, no. 5A, pp. 3787–3795.
  ista: 'Henzinger TA, Lechner M, Zikelic D. 2021. Scalable verification of quantized
    neural networks. Proceedings of the AAAI Conference on Artificial Intelligence.
    AAAI: Association for the Advancement of Artificial Intelligence, Technical Tracks,
    vol. 35, 3787–3795.'
  mla: Henzinger, Thomas A., et al. “Scalable Verification of Quantized Neural Networks.”
    <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>, vol. 35,
    no. 5A, AAAI Press, 2021, pp. 3787–95.
  short: T.A. Henzinger, M. Lechner, D. Zikelic, in:, Proceedings of the AAAI Conference
    on Artificial Intelligence, AAAI Press, 2021, pp. 3787–3795.
conference:
  end_date: 2021-02-09
  location: Virtual
  name: 'AAAI: Association for the Advancement of Artificial Intelligence'
  start_date: 2021-02-02
date_created: 2022-01-25T15:15:02Z
date_published: 2021-05-28T00:00:00Z
date_updated: 2025-07-14T09:10:11Z
day: '28'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
ec_funded: 1
external_id:
  arxiv:
  - '2012.08185'
file:
- access_level: open_access
  checksum: 2bc8155b2526a70fba5b7301bc89dbd1
  content_type: application/pdf
  creator: mlechner
  date_created: 2022-01-26T07:41:16Z
  date_updated: 2022-01-26T07:41:16Z
  file_id: '10684'
  file_name: 16496-Article Text-19990-1-2-20210518 (1).pdf
  file_size: 137235
  relation: main_file
  success: 1
file_date_updated: 2022-01-26T07:41:16Z
has_accepted_license: '1'
intvolume: '        35'
issue: 5A
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ojs.aaai.org/index.php/AAAI/article/view/16496
month: '05'
oa: 1
oa_version: Published Version
page: 3787-3795
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
publication: Proceedings of the AAAI Conference on Artificial Intelligence
publication_identifier:
  eissn:
  - 2374-3468
  isbn:
  - 978-1-57735-866-4
  issn:
  - 2159-5399
publication_status: published
publisher: AAAI Press
quality_controlled: '1'
related_material:
  record:
  - id: '11362'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Scalable verification of quantized neural networks
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 35
year: '2021'
...
---
_id: '10666'
abstract:
- lang: eng
  text: Adversarial training is an effective method to train deep learning models
    that are resilient to norm-bounded perturbations, with the cost of nominal performance
    drop. While adversarial training appears to enhance the robustness and safety
    of a deep model deployed in open-world decision-critical applications, counterintuitively,
    it induces undesired behaviors in robot learning settings. In this paper, we show
    theoretically and experimentally that neural controllers obtained via adversarial
    training are subjected to three types of defects, namely transient, systematic,
    and conditional errors. We first generalize adversarial training to a safety-domain
    optimization scheme allowing for more generic specifications. We then prove that
    such a learning process tends to cause certain error profiles. We support our
    theoretical results by a thorough experimental safety analysis in a robot-learning
    task. Our results suggest that adversarial training is not yet ready for robot
    learning.
acknowledgement: M.L. and T.A.H. are supported in part by the Austrian Science Fund
  (FWF) under grant Z211-N23 (Wittgenstein Award). R.H. and D.R. are supported by
  Boeing and R.G. by Horizon-2020 ECSEL Project grant no. 783163 (iDev40).
article_processing_charge: No
arxiv: 1
author:
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Ramin
  full_name: Hasani, Ramin
  last_name: Hasani
- first_name: Radu
  full_name: Grosu, Radu
  last_name: Grosu
- first_name: Daniela
  full_name: Rus, Daniela
  last_name: Rus
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000-0002-2985-7724
citation:
  ama: 'Lechner M, Hasani R, Grosu R, Rus D, Henzinger TA. Adversarial training is
    not ready for robot learning. In: <i>2021 IEEE International Conference on Robotics
    and Automation</i>. ICRA. ; 2021:4140-4147. doi:<a href="https://doi.org/10.1109/ICRA48506.2021.9561036">10.1109/ICRA48506.2021.9561036</a>'
  apa: Lechner, M., Hasani, R., Grosu, R., Rus, D., &#38; Henzinger, T. A. (2021).
    Adversarial training is not ready for robot learning. In <i>2021 IEEE International
    Conference on Robotics and Automation</i> (pp. 4140–4147). Xi’an, China. <a href="https://doi.org/10.1109/ICRA48506.2021.9561036">https://doi.org/10.1109/ICRA48506.2021.9561036</a>
  chicago: Lechner, Mathias, Ramin Hasani, Radu Grosu, Daniela Rus, and Thomas A Henzinger.
    “Adversarial Training Is Not Ready for Robot Learning.” In <i>2021 IEEE International
    Conference on Robotics and Automation</i>, 4140–47. ICRA, 2021. <a href="https://doi.org/10.1109/ICRA48506.2021.9561036">https://doi.org/10.1109/ICRA48506.2021.9561036</a>.
  ieee: M. Lechner, R. Hasani, R. Grosu, D. Rus, and T. A. Henzinger, “Adversarial
    training is not ready for robot learning,” in <i>2021 IEEE International Conference
    on Robotics and Automation</i>, Xi’an, China, 2021, pp. 4140–4147.
  ista: 'Lechner M, Hasani R, Grosu R, Rus D, Henzinger TA. 2021. Adversarial training
    is not ready for robot learning. 2021 IEEE International Conference on Robotics
    and Automation. ICRA: International Conference on Robotics and AutomationICRA,
    4140–4147.'
  mla: Lechner, Mathias, et al. “Adversarial Training Is Not Ready for Robot Learning.”
    <i>2021 IEEE International Conference on Robotics and Automation</i>, 2021, pp.
    4140–47, doi:<a href="https://doi.org/10.1109/ICRA48506.2021.9561036">10.1109/ICRA48506.2021.9561036</a>.
  short: M. Lechner, R. Hasani, R. Grosu, D. Rus, T.A. Henzinger, in:, 2021 IEEE International
    Conference on Robotics and Automation, 2021, pp. 4140–4147.
conference:
  end_date: 2021-06-05
  location: Xi'an, China
  name: 'ICRA: International Conference on Robotics and Automation'
  start_date: 2021-05-30
date_created: 2022-01-25T15:44:54Z
date_published: 2021-01-01T00:00:00Z
date_updated: 2023-08-17T06:58:38Z
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
doi: 10.1109/ICRA48506.2021.9561036
external_id:
  arxiv:
  - '2103.08187'
  isi:
  - '000765738803040'
has_accepted_license: '1'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/3.0/
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2103.08187
oa: 1
oa_version: None
page: 4140-4147
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: 2021 IEEE International Conference on Robotics and Automation
publication_identifier:
  eisbn:
  - 978-1-7281-9077-8
  eissn:
  - 2577-087X
  isbn:
  - 978-1-7281-9078-5
  issn:
  - 1050-4729
publication_status: published
quality_controlled: '1'
related_material:
  record:
  - id: '11362'
    relation: dissertation_contains
    status: public
series_title: ICRA
status: public
title: Adversarial training is not ready for robot learning
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND
    3.0)
  short: CC BY-NC-ND (3.0)
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '10667'
abstract:
- lang: eng
  text: Bayesian neural networks (BNNs) place distributions over the weights of a
    neural network to model uncertainty in the data and the network's prediction.
    We consider the problem of verifying safety when running a Bayesian neural network
    policy in a feedback loop with infinite time horizon systems. Compared to the
    existing sampling-based approaches, which are inapplicable to the infinite time
    horizon setting, we train a separate deterministic neural network that serves
    as an infinite time horizon safety certificate. In particular, we show that the
    certificate network guarantees the safety of the system over a subset of the BNN
    weight posterior's support. Our method first computes a safe weight set and then
    alters the BNN's weight posterior to reject samples outside this set. Moreover,
    we show how to extend our approach to a safe-exploration reinforcement learning
    setting, in order to avoid unsafe trajectories during the training of the policy.
    We evaluate our approach on a series of reinforcement learning benchmarks, including
    non-Lyapunovian safety specifications.
acknowledgement: This research was supported in part by the Austrian Science Fund
  (FWF) under grant Z211-N23 (Wittgenstein Award), ERC CoG 863818 (FoRM-SMArt), and
  the European Union’s Horizon 2020 research and innovation programme under the Marie
  Skłodowska-Curie Grant Agreement No. 665385.
alternative_title:
- ' Advances in Neural Information Processing Systems'
article_processing_charge: No
arxiv: 1
author:
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Ðorđe
  full_name: Žikelić, Ðorđe
  last_name: Žikelić
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000-0002-2985-7724
citation:
  ama: 'Lechner M, Žikelić Ð, Chatterjee K, Henzinger TA. Infinite time horizon safety
    of Bayesian neural networks. In: <i>35th Conference on Neural Information Processing
    Systems</i>. ; 2021. doi:<a href="https://doi.org/10.48550/arXiv.2111.03165">10.48550/arXiv.2111.03165</a>'
  apa: Lechner, M., Žikelić, Ð., Chatterjee, K., &#38; Henzinger, T. A. (2021). Infinite
    time horizon safety of Bayesian neural networks. In <i>35th Conference on Neural
    Information Processing Systems</i>. Virtual. <a href="https://doi.org/10.48550/arXiv.2111.03165">https://doi.org/10.48550/arXiv.2111.03165</a>
  chicago: Lechner, Mathias, Ðorđe Žikelić, Krishnendu Chatterjee, and Thomas A Henzinger.
    “Infinite Time Horizon Safety of Bayesian Neural Networks.” In <i>35th Conference
    on Neural Information Processing Systems</i>, 2021. <a href="https://doi.org/10.48550/arXiv.2111.03165">https://doi.org/10.48550/arXiv.2111.03165</a>.
  ieee: M. Lechner, Ð. Žikelić, K. Chatterjee, and T. A. Henzinger, “Infinite time
    horizon safety of Bayesian neural networks,” in <i>35th Conference on Neural Information
    Processing Systems</i>, Virtual, 2021.
  ista: 'Lechner M, Žikelić Ð, Chatterjee K, Henzinger TA. 2021. Infinite time horizon
    safety of Bayesian neural networks. 35th Conference on Neural Information Processing
    Systems. NeurIPS: Neural Information Processing Systems,  Advances in Neural Information
    Processing Systems, .'
  mla: Lechner, Mathias, et al. “Infinite Time Horizon Safety of Bayesian Neural Networks.”
    <i>35th Conference on Neural Information Processing Systems</i>, 2021, doi:<a
    href="https://doi.org/10.48550/arXiv.2111.03165">10.48550/arXiv.2111.03165</a>.
  short: M. Lechner, Ð. Žikelić, K. Chatterjee, T.A. Henzinger, in:, 35th Conference
    on Neural Information Processing Systems, 2021.
conference:
  end_date: 2021-12-10
  location: Virtual
  name: 'NeurIPS: Neural Information Processing Systems'
  start_date: 2021-12-06
date_created: 2022-01-25T15:45:58Z
date_published: 2021-12-01T00:00:00Z
date_updated: 2025-07-14T09:10:12Z
day: '01'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
- _id: KrCh
doi: 10.48550/arXiv.2111.03165
ec_funded: 1
external_id:
  arxiv:
  - '2111.03165'
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  url: https://proceedings.neurips.cc/paper/2021/hash/544defa9fddff50c53b71c43e0da72be-Abstract.html
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
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  name: The Wittgenstein Prize
publication: 35th Conference on Neural Information Processing Systems
publication_status: published
quality_controlled: '1'
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    relation: dissertation_contains
    status: public
status: public
title: Infinite time horizon safety of Bayesian neural networks
tmp:
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  short: CC BY-NC-ND (3.0)
type: conference
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year: '2021'
...
---
_id: '10668'
abstract:
- lang: eng
  text: 'Robustness to variations in lighting conditions is a key objective for any
    deep vision system. To this end, our paper extends the receptive field of convolutional
    neural networks with two residual components, ubiquitous in the visual processing
    system of vertebrates: On-center and off-center pathways, with an excitatory center
    and inhibitory surround; OOCS for short. The On-center pathway is excited by the
    presence of a light stimulus in its center, but not in its surround, whereas the
    Off-center pathway is excited by the absence of a light stimulus in its center,
    but not in its surround. We design OOCS pathways via a difference of Gaussians,
    with their variance computed analytically from the size of the receptive fields.
    OOCS pathways complement each other in their response to light stimuli, ensuring
    this way a strong edge-detection capability, and as a result an accurate and robust
    inference under challenging lighting conditions. We provide extensive empirical
    evidence showing that networks supplied with OOCS pathways gain accuracy and illumination-robustness
    from the novel edge representation, compared to other baselines.'
acknowledgement: Z.B. is supported by the Doctoral College Resilient Embedded Systems,
  which is run jointly by the TU Wien’s Faculty of Informatics and the UAS Technikum
  Wien. R.G. is partially supported by the Horizon 2020 Era-Permed project Persorad,
  and ECSEL Project grant no. 783163 (iDev40). R.H and D.R were partially supported
  by Boeing and MIT. M.L. is supported in part by the Austrian Science Fund (FWF)
  under grant Z211-N23 (Wittgenstein Award).
alternative_title:
- PMLR
article_processing_charge: No
author:
- first_name: Zahra
  full_name: Babaiee, Zahra
  last_name: Babaiee
- first_name: Ramin
  full_name: Hasani, Ramin
  last_name: Hasani
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Daniela
  full_name: Rus, Daniela
  last_name: Rus
- first_name: Radu
  full_name: Grosu, Radu
  last_name: Grosu
citation:
  ama: 'Babaiee Z, Hasani R, Lechner M, Rus D, Grosu R. On-off center-surround receptive
    fields for accurate and robust image classification. In: <i>Proceedings of the
    38th International Conference on Machine Learning</i>. Vol 139. ML Research Press;
    2021:478-489.'
  apa: 'Babaiee, Z., Hasani, R., Lechner, M., Rus, D., &#38; Grosu, R. (2021). On-off
    center-surround receptive fields for accurate and robust image classification.
    In <i>Proceedings of the 38th International Conference on Machine Learning</i>
    (Vol. 139, pp. 478–489). Virtual: ML Research Press.'
  chicago: Babaiee, Zahra, Ramin Hasani, Mathias Lechner, Daniela Rus, and Radu Grosu.
    “On-off Center-Surround Receptive Fields for Accurate and Robust Image Classification.”
    In <i>Proceedings of the 38th International Conference on Machine Learning</i>,
    139:478–89. ML Research Press, 2021.
  ieee: Z. Babaiee, R. Hasani, M. Lechner, D. Rus, and R. Grosu, “On-off center-surround
    receptive fields for accurate and robust image classification,” in <i>Proceedings
    of the 38th International Conference on Machine Learning</i>, Virtual, 2021, vol.
    139, pp. 478–489.
  ista: 'Babaiee Z, Hasani R, Lechner M, Rus D, Grosu R. 2021. On-off center-surround
    receptive fields for accurate and robust image classification. Proceedings of
    the 38th International Conference on Machine Learning. ML: Machine Learning, PMLR,
    vol. 139, 478–489.'
  mla: Babaiee, Zahra, et al. “On-off Center-Surround Receptive Fields for Accurate
    and Robust Image Classification.” <i>Proceedings of the 38th International Conference
    on Machine Learning</i>, vol. 139, ML Research Press, 2021, pp. 478–89.
  short: Z. Babaiee, R. Hasani, M. Lechner, D. Rus, R. Grosu, in:, Proceedings of
    the 38th International Conference on Machine Learning, ML Research Press, 2021,
    pp. 478–489.
conference:
  end_date: 2021-07-24
  location: Virtual
  name: 'ML: Machine Learning'
  start_date: 2021-07-18
date_created: 2022-01-25T15:46:33Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2022-05-04T15:02:27Z
day: '01'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
file:
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  date_created: 2022-01-26T07:38:32Z
  date_updated: 2022-01-26T07:38:32Z
  file_id: '10681'
  file_name: babaiee21a.pdf
  file_size: 4246561
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  success: 1
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has_accepted_license: '1'
intvolume: '       139'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://proceedings.mlr.press/v139/babaiee21a
month: '07'
oa: 1
oa_version: Published Version
page: 478-489
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Proceedings of the 38th International Conference on Machine Learning
publication_identifier:
  issn:
  - 2640-3498
publication_status: published
publisher: ML Research Press
quality_controlled: '1'
status: public
title: On-off center-surround receptive fields for accurate and robust image classification
tmp:
  image: /images/cc_by_nc_nd.png
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    3.0)
  short: CC BY-NC-ND (3.0)
type: conference
user_id: 2EBD1598-F248-11E8-B48F-1D18A9856A87
volume: 139
year: '2021'
...
---
_id: '10669'
abstract:
- lang: eng
  text: "We show that Neural ODEs, an emerging class of timecontinuous neural networks,
    can be verified by solving a set of global-optimization problems. For this purpose,
    we introduce Stochastic Lagrangian Reachability (SLR), an\r\nabstraction-based
    technique for constructing a tight Reachtube (an over-approximation of the set
    of reachable states\r\nover a given time-horizon), and provide stochastic guarantees
    in the form of confidence intervals for the Reachtube bounds. SLR inherently avoids
    the infamous wrapping effect (accumulation of over-approximation errors) by performing
    local optimization steps to expand safe regions instead of repeatedly forward-propagating
    them as is done by deterministic reachability methods. To enable fast local optimizations,
    we introduce a novel forward-mode adjoint sensitivity method to compute gradients
    without the need for backpropagation. Finally, we establish asymptotic and non-asymptotic
    convergence rates for SLR."
acknowledgement: "The authors would like to thank the reviewers for their insightful
  comments. RH and RG were partially supported by\r\nHorizon-2020 ECSEL Project grant
  No. 783163 (iDev40). RH was partially supported by Boeing. ML was supported\r\nin
  part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).
  SG was funded by FWF\r\nproject W1255-N23. JC was partially supported by NAWA Polish
  Returns grant PPN/PPO/2018/1/00029. SS was supported by NSF awards DCL-2040599,
  CCF-1918225, and CPS-1446832.\r\n"
alternative_title:
- Technical Tracks
article_processing_charge: No
arxiv: 1
author:
- first_name: Sophie
  full_name: Grunbacher, Sophie
  last_name: Grunbacher
- first_name: Ramin
  full_name: Hasani, Ramin
  last_name: Hasani
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Jacek
  full_name: Cyranka, Jacek
  last_name: Cyranka
- first_name: Scott A
  full_name: Smolka, Scott A
  last_name: Smolka
- first_name: Radu
  full_name: Grosu, Radu
  last_name: Grosu
citation:
  ama: 'Grunbacher S, Hasani R, Lechner M, Cyranka J, Smolka SA, Grosu R. On the verification
    of neural ODEs with stochastic guarantees. In: <i>Proceedings of the AAAI Conference
    on Artificial Intelligence</i>. Vol 35. AAAI Press; 2021:11525-11535.'
  apa: 'Grunbacher, S., Hasani, R., Lechner, M., Cyranka, J., Smolka, S. A., &#38;
    Grosu, R. (2021). On the verification of neural ODEs with stochastic guarantees.
    In <i>Proceedings of the AAAI Conference on Artificial Intelligence</i> (Vol.
    35, pp. 11525–11535). Virtual: AAAI Press.'
  chicago: Grunbacher, Sophie, Ramin Hasani, Mathias Lechner, Jacek Cyranka, Scott
    A Smolka, and Radu Grosu. “On the Verification of Neural ODEs with Stochastic
    Guarantees.” In <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>,
    35:11525–35. AAAI Press, 2021.
  ieee: S. Grunbacher, R. Hasani, M. Lechner, J. Cyranka, S. A. Smolka, and R. Grosu,
    “On the verification of neural ODEs with stochastic guarantees,” in <i>Proceedings
    of the AAAI Conference on Artificial Intelligence</i>, Virtual, 2021, vol. 35,
    no. 13, pp. 11525–11535.
  ista: 'Grunbacher S, Hasani R, Lechner M, Cyranka J, Smolka SA, Grosu R. 2021. On
    the verification of neural ODEs with stochastic guarantees. Proceedings of the
    AAAI Conference on Artificial Intelligence. AAAI: Association for the Advancement
    of Artificial Intelligence, Technical Tracks, vol. 35, 11525–11535.'
  mla: Grunbacher, Sophie, et al. “On the Verification of Neural ODEs with Stochastic
    Guarantees.” <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>,
    vol. 35, no. 13, AAAI Press, 2021, pp. 11525–35.
  short: S. Grunbacher, R. Hasani, M. Lechner, J. Cyranka, S.A. Smolka, R. Grosu,
    in:, Proceedings of the AAAI Conference on Artificial Intelligence, AAAI Press,
    2021, pp. 11525–11535.
conference:
  end_date: 2021-02-09
  location: Virtual
  name: 'AAAI: Association for the Advancement of Artificial Intelligence'
  start_date: 2021-02-02
date_created: 2022-01-25T15:47:20Z
date_published: 2021-05-28T00:00:00Z
date_updated: 2022-05-24T06:33:14Z
day: '28'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
external_id:
  arxiv:
  - '2012.08863'
file:
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  checksum: 468d07041e282a1d46ffdae92f709630
  content_type: application/pdf
  creator: mlechner
  date_created: 2022-01-26T07:38:08Z
  date_updated: 2022-01-26T07:38:08Z
  file_id: '10680'
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intvolume: '        35'
issue: '13'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ojs.aaai.org/index.php/AAAI/article/view/17372
month: '05'
oa: 1
oa_version: Published Version
page: 11525-11535
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Proceedings of the AAAI Conference on Artificial Intelligence
publication_identifier:
  eissn:
  - 2374-3468
  isbn:
  - 978-1-57735-866-4
  issn:
  - 2159-5399
publication_status: published
publisher: AAAI Press
quality_controlled: '1'
status: public
title: On the verification of neural ODEs with stochastic guarantees
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 35
year: '2021'
...
---
_id: '10670'
abstract:
- lang: eng
  text: "Imitation learning enables high-fidelity, vision-based learning of policies
    within rich, photorealistic environments. However, such techniques often rely
    on traditional discrete-time neural models and face difficulties in generalizing
    to domain shifts by failing to account for the causal relationships between the
    agent and the environment. In this paper, we propose a theoretical and experimental
    framework for learning causal representations using continuous-time neural networks,
    specifically over their discrete-time counterparts. We evaluate our method in
    the context of visual-control learning of drones over a series of complex tasks,
    ranging from short- and long-term navigation, to chasing static and dynamic objects
    through photorealistic environments. Our results demonstrate that causal continuous-time\r\ndeep
    models can perform robust navigation tasks, where advanced recurrent models fail.
    These models learn complex causal control representations directly from raw visual
    inputs and scale to solve a variety of tasks using imitation learning."
acknowledgement: "C.V., R.H. A.A. and D.R. are partially supported by Boeing and MIT.
  A.A. is supported by the National Science Foundation (NSF) Graduate Research Fellowship
  Program. M.L. is supported in part by the Austrian Science Fund (FWF) under grant
  Z211-N23 (Wittgenstein Award). Research was sponsored by the United States Air Force
  Research Laboratory and the United States Air Force Artificial Intelligence Accelerator
  and was accomplished under Cooperative Agreement Number FA8750-19-2-1000. The views
  and conclusions contained in this document are those of the authors\r\nand should
  not be interpreted as representing the official policies, either expressed or implied,
  of the United States Air Force or the U.S. Government. The U.S. Government is authorized
  to reproduce and distribute reprints for Government purposes notwithstanding any
  copyright notation herein.\r\n"
alternative_title:
- ' Advances in Neural Information Processing Systems'
article_processing_charge: No
arxiv: 1
author:
- first_name: Charles J
  full_name: Vorbach, Charles J
  last_name: Vorbach
- first_name: Ramin
  full_name: Hasani, Ramin
  last_name: Hasani
- first_name: Alexander
  full_name: Amini, Alexander
  last_name: Amini
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Daniela
  full_name: Rus, Daniela
  last_name: Rus
citation:
  ama: 'Vorbach CJ, Hasani R, Amini A, Lechner M, Rus D. Causal navigation by continuous-time
    neural networks. In: <i>35th Conference on Neural Information Processing Systems</i>.
    ; 2021.'
  apa: Vorbach, C. J., Hasani, R., Amini, A., Lechner, M., &#38; Rus, D. (2021). Causal
    navigation by continuous-time neural networks. In <i>35th Conference on Neural
    Information Processing Systems</i>. Virtual.
  chicago: Vorbach, Charles J, Ramin Hasani, Alexander Amini, Mathias Lechner, and
    Daniela Rus. “Causal Navigation by Continuous-Time Neural Networks.” In <i>35th
    Conference on Neural Information Processing Systems</i>, 2021.
  ieee: C. J. Vorbach, R. Hasani, A. Amini, M. Lechner, and D. Rus, “Causal navigation
    by continuous-time neural networks,” in <i>35th Conference on Neural Information
    Processing Systems</i>, Virtual, 2021.
  ista: 'Vorbach CJ, Hasani R, Amini A, Lechner M, Rus D. 2021. Causal navigation
    by continuous-time neural networks. 35th Conference on Neural Information Processing
    Systems. NeurIPS: Neural Information Processing Systems,  Advances in Neural Information
    Processing Systems, .'
  mla: Vorbach, Charles J., et al. “Causal Navigation by Continuous-Time Neural Networks.”
    <i>35th Conference on Neural Information Processing Systems</i>, 2021.
  short: C.J. Vorbach, R. Hasani, A. Amini, M. Lechner, D. Rus, in:, 35th Conference
    on Neural Information Processing Systems, 2021.
conference:
  end_date: 2021-12-10
  location: Virtual
  name: 'NeurIPS: Neural Information Processing Systems'
  start_date: 2021-12-06
date_created: 2022-01-25T15:47:50Z
date_published: 2021-12-01T00:00:00Z
date_updated: 2022-01-26T14:33:31Z
day: '01'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
external_id:
  arxiv:
  - '2106.08314'
file:
- access_level: open_access
  checksum: be81f0ade174a8c9b2d4fe09590b2021
  content_type: application/pdf
  creator: mlechner
  date_created: 2022-01-26T07:37:24Z
  date_updated: 2022-01-26T07:37:24Z
  file_id: '10679'
  file_name: NeurIPS-2021-causal-navigation-by-continuous-time-neural-networks-Paper.pdf
  file_size: 6841228
  relation: main_file
  success: 1
file_date_updated: 2022-01-26T07:37:24Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
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  url: https://proceedings.neurips.cc/paper/2021/hash/67ba02d73c54f0b83c05507b7fb7267f-Abstract.html
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: 35th Conference on Neural Information Processing Systems
publication_status: published
quality_controlled: '1'
status: public
title: Causal navigation by continuous-time neural networks
tmp:
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  short: CC BY-NC-ND (3.0)
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '10671'
abstract:
- lang: eng
  text: We introduce a new class of time-continuous recurrent neural network models.
    Instead of declaring a learning system’s dynamics by implicit nonlinearities,
    we construct networks of linear first-order dynamical systems modulated via nonlinear
    interlinked gates. The resulting models represent dynamical systems with varying
    (i.e., liquid) time-constants coupled to their hidden state, with outputs being
    computed by numerical differential equation solvers. These neural networks exhibit
    stable and bounded behavior, yield superior expressivity within the family of
    neural ordinary differential equations, and give rise to improved performance
    on time-series prediction tasks. To demonstrate these properties, we first take
    a theoretical approach to find bounds over their dynamics, and compute their expressive
    power by the trajectory length measure in a latent trajectory space. We then conduct
    a series of time-series prediction experiments to manifest the approximation capability
    of Liquid Time-Constant Networks (LTCs) compared to classical and modern RNNs.
acknowledgement: "R.H. and D.R. are partially supported by Boeing. R.H. and R.G. were
  partially supported by the Horizon-2020 ECSEL\r\nProject grant No. 783163 (iDev40).
  M.L. was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23
  (Wittgenstein Award). A.A. is supported by the National Science Foundation (NSF)
  Graduate Research Fellowship Program. This research work is partially drawn from
  the PhD dissertation of R.H."
alternative_title:
- Technical Tracks
article_processing_charge: No
arxiv: 1
author:
- first_name: Ramin
  full_name: Hasani, Ramin
  last_name: Hasani
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Alexander
  full_name: Amini, Alexander
  last_name: Amini
- first_name: Daniela
  full_name: Rus, Daniela
  last_name: Rus
- first_name: Radu
  full_name: Grosu, Radu
  last_name: Grosu
citation:
  ama: 'Hasani R, Lechner M, Amini A, Rus D, Grosu R. Liquid time-constant networks.
    In: <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>. Vol
    35. AAAI Press; 2021:7657-7666.'
  apa: 'Hasani, R., Lechner, M., Amini, A., Rus, D., &#38; Grosu, R. (2021). Liquid
    time-constant networks. In <i>Proceedings of the AAAI Conference on Artificial
    Intelligence</i> (Vol. 35, pp. 7657–7666). Virtual: AAAI Press.'
  chicago: Hasani, Ramin, Mathias Lechner, Alexander Amini, Daniela Rus, and Radu
    Grosu. “Liquid Time-Constant Networks.” In <i>Proceedings of the AAAI Conference
    on Artificial Intelligence</i>, 35:7657–66. AAAI Press, 2021.
  ieee: R. Hasani, M. Lechner, A. Amini, D. Rus, and R. Grosu, “Liquid time-constant
    networks,” in <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>,
    Virtual, 2021, vol. 35, no. 9, pp. 7657–7666.
  ista: 'Hasani R, Lechner M, Amini A, Rus D, Grosu R. 2021. Liquid time-constant
    networks. Proceedings of the AAAI Conference on Artificial Intelligence. AAAI:
    Association for the Advancement of Artificial Intelligence, Technical Tracks,
    vol. 35, 7657–7666.'
  mla: Hasani, Ramin, et al. “Liquid Time-Constant Networks.” <i>Proceedings of the
    AAAI Conference on Artificial Intelligence</i>, vol. 35, no. 9, AAAI Press, 2021,
    pp. 7657–66.
  short: R. Hasani, M. Lechner, A. Amini, D. Rus, R. Grosu, in:, Proceedings of the
    AAAI Conference on Artificial Intelligence, AAAI Press, 2021, pp. 7657–7666.
conference:
  end_date: 2021-02-09
  location: Virtual
  name: 'AAAI: Association for the Advancement of Artificial Intelligence'
  start_date: 2021-02-02
date_created: 2022-01-25T15:48:36Z
date_published: 2021-05-28T00:00:00Z
date_updated: 2022-05-24T06:36:54Z
day: '28'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
external_id:
  arxiv:
  - '2006.04439'
file:
- access_level: open_access
  checksum: 0f06995fba06dbcfa7ed965fc66027ff
  content_type: application/pdf
  creator: mlechner
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  file_name: 16936-Article Text-20430-1-2-20210518 (1).pdf
  file_size: 4302669
  relation: main_file
  success: 1
file_date_updated: 2022-01-26T07:36:03Z
has_accepted_license: '1'
intvolume: '        35'
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ojs.aaai.org/index.php/AAAI/article/view/16936
month: '05'
oa: 1
oa_version: Published Version
page: 7657-7666
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Proceedings of the AAAI Conference on Artificial Intelligence
publication_identifier:
  eissn:
  - 2374-3468
  isbn:
  - 978-1-57735-866-4
  issn:
  - 2159-5399
publication_status: published
publisher: AAAI Press
quality_controlled: '1'
status: public
title: Liquid time-constant networks
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 35
year: '2021'
...
---
_id: '10674'
abstract:
- lang: eng
  text: 'In two-player games on graphs, the players move a token through a graph to
    produce an infinite path, which determines the winner of the game. Such games
    are central in formal methods since they model the interaction between a non-terminating
    system and its environment. In bidding games the players bid for the right to
    move the token: in each round, the players simultaneously submit bids, and the
    higher bidder moves the token and pays the other player. Bidding games are known
    to have a clean and elegant mathematical structure that relies on the ability
    of the players to submit arbitrarily small bids. Many applications, however, require
    a fixed granularity for the bids, which can represent, for example, the monetary
    value expressed in cents. We study, for the first time, the combination of discrete-bidding
    and infinite-duration games. Our most important result proves that these games
    form a large determined subclass of concurrent games, where determinacy is the
    strong property that there always exists exactly one player who can guarantee
    winning the game. In particular, we show that, in contrast to non-discrete bidding
    games, the mechanism with which tied bids are resolved plays an important role
    in discrete-bidding games. We study several natural tie-breaking mechanisms and
    show that, while some do not admit determinacy, most natural mechanisms imply
    determinacy for every pair of initial budgets.'
acknowledgement: "This research was supported in part by the Austrian Science Fund
  (FWF) under grants S11402-N23 (RiSE/SHiNE), Z211-N23 (Wittgenstein Award), and M
  2369-N33 (Meitner fellowship).\r\n"
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Milad
  full_name: Aghajohari, Milad
  last_name: Aghajohari
- first_name: Guy
  full_name: Avni, Guy
  id: 463C8BC2-F248-11E8-B48F-1D18A9856A87
  last_name: Avni
  orcid: 0000-0001-5588-8287
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000-0002-2985-7724
citation:
  ama: Aghajohari M, Avni G, Henzinger TA. Determinacy in discrete-bidding infinite-duration
    games. <i>Logical Methods in Computer Science</i>. 2021;17(1):10:1-10:23. doi:<a
    href="https://doi.org/10.23638/LMCS-17(1:10)2021">10.23638/LMCS-17(1:10)2021</a>
  apa: Aghajohari, M., Avni, G., &#38; Henzinger, T. A. (2021). Determinacy in discrete-bidding
    infinite-duration games. <i>Logical Methods in Computer Science</i>. International
    Federation for Computational Logic. <a href="https://doi.org/10.23638/LMCS-17(1:10)2021">https://doi.org/10.23638/LMCS-17(1:10)2021</a>
  chicago: Aghajohari, Milad, Guy Avni, and Thomas A Henzinger. “Determinacy in Discrete-Bidding
    Infinite-Duration Games.” <i>Logical Methods in Computer Science</i>. International
    Federation for Computational Logic, 2021. <a href="https://doi.org/10.23638/LMCS-17(1:10)2021">https://doi.org/10.23638/LMCS-17(1:10)2021</a>.
  ieee: M. Aghajohari, G. Avni, and T. A. Henzinger, “Determinacy in discrete-bidding
    infinite-duration games,” <i>Logical Methods in Computer Science</i>, vol. 17,
    no. 1. International Federation for Computational Logic, p. 10:1-10:23, 2021.
  ista: Aghajohari M, Avni G, Henzinger TA. 2021. Determinacy in discrete-bidding
    infinite-duration games. Logical Methods in Computer Science. 17(1), 10:1-10:23.
  mla: Aghajohari, Milad, et al. “Determinacy in Discrete-Bidding Infinite-Duration
    Games.” <i>Logical Methods in Computer Science</i>, vol. 17, no. 1, International
    Federation for Computational Logic, 2021, p. 10:1-10:23, doi:<a href="https://doi.org/10.23638/LMCS-17(1:10)2021">10.23638/LMCS-17(1:10)2021</a>.
  short: M. Aghajohari, G. Avni, T.A. Henzinger, Logical Methods in Computer Science
    17 (2021) 10:1-10:23.
date_created: 2022-01-25T16:32:13Z
date_published: 2021-02-03T00:00:00Z
date_updated: 2023-08-17T06:56:42Z
day: '03'
ddc:
- '510'
department:
- _id: ToHe
doi: 10.23638/LMCS-17(1:10)2021
external_id:
  arxiv:
  - '1905.03588'
  isi:
  - '000658724600010'
file:
- access_level: open_access
  checksum: b35586a50ed1ca8f44767de116d18d81
  content_type: application/pdf
  creator: alisjak
  date_created: 2022-01-26T08:04:50Z
  date_updated: 2022-01-26T08:04:50Z
  file_id: '10690'
  file_name: 2021_LMCS_AGHAJOHAR.pdf
  file_size: 819878
  relation: main_file
  success: 1
file_date_updated: 2022-01-26T08:04:50Z
has_accepted_license: '1'
intvolume: '        17'
isi: 1
issue: '1'
keyword:
- computer science
- computer science and game theory
- logic in computer science
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: 10:1-10:23
project:
- _id: 264B3912-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02369
  name: Formal Methods meets Algorithmic Game Theory
- _id: 25F2ACDE-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11402-N23
  name: Rigorous Systems Engineering
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Logical Methods in Computer Science
publication_identifier:
  eissn:
  - 1860-5974
publication_status: published
publisher: International Federation for Computational Logic
quality_controlled: '1'
scopus_import: '1'
status: public
title: Determinacy in discrete-bidding infinite-duration games
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 17
year: '2021'
...
---
_id: '10688'
abstract:
- lang: eng
  text: "Civl is a static verifier for concurrent programs designed around the conceptual
    framework of layered refinement,\r\nwhich views the task of verifying a program
    as a sequence of program simplification steps each justified by its own invariant.
    Civl verifies a layered concurrent program that compactly expresses all the programs
    in this sequence and the supporting invariants. This paper presents the design
    and implementation of the Civl verifier."
acknowledgement: This research was performed while Bernhard Kragl was at IST Austria,
  supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein
  Award).
alternative_title:
- Conference Series
article_processing_charge: No
author:
- first_name: Bernhard
  full_name: Kragl, Bernhard
  id: 320FC952-F248-11E8-B48F-1D18A9856A87
  last_name: Kragl
  orcid: 0000-0001-7745-9117
- first_name: Shaz
  full_name: Qadeer, Shaz
  last_name: Qadeer
citation:
  ama: 'Kragl B, Qadeer S. The Civl verifier. In: Ruzica P, Whalen MW, eds. <i>Proceedings
    of the 21st Conference on Formal Methods in Computer-Aided Design</i>. Vol 2.
    TU Wien Academic Press; 2021:143–152. doi:<a href="https://doi.org/10.34727/2021/isbn.978-3-85448-046-4_23">10.34727/2021/isbn.978-3-85448-046-4_23</a>'
  apa: 'Kragl, B., &#38; Qadeer, S. (2021). The Civl verifier. In P. Ruzica &#38;
    M. W. Whalen (Eds.), <i>Proceedings of the 21st Conference on Formal Methods in
    Computer-Aided Design</i> (Vol. 2, pp. 143–152). Virtual: TU Wien Academic Press.
    <a href="https://doi.org/10.34727/2021/isbn.978-3-85448-046-4_23">https://doi.org/10.34727/2021/isbn.978-3-85448-046-4_23</a>'
  chicago: Kragl, Bernhard, and Shaz Qadeer. “The Civl Verifier.” In <i>Proceedings
    of the 21st Conference on Formal Methods in Computer-Aided Design</i>, edited
    by Piskac Ruzica and Michael W. Whalen, 2:143–152. TU Wien Academic Press, 2021.
    <a href="https://doi.org/10.34727/2021/isbn.978-3-85448-046-4_23">https://doi.org/10.34727/2021/isbn.978-3-85448-046-4_23</a>.
  ieee: B. Kragl and S. Qadeer, “The Civl verifier,” in <i>Proceedings of the 21st
    Conference on Formal Methods in Computer-Aided Design</i>, Virtual, 2021, vol.
    2, pp. 143–152.
  ista: 'Kragl B, Qadeer S. 2021. The Civl verifier. Proceedings of the 21st Conference
    on Formal Methods in Computer-Aided Design. FMCAD: Formal Methods in Computer-Aided
    Design, Conference Series, vol. 2, 143–152.'
  mla: Kragl, Bernhard, and Shaz Qadeer. “The Civl Verifier.” <i>Proceedings of the
    21st Conference on Formal Methods in Computer-Aided Design</i>, edited by Piskac
    Ruzica and Michael W. Whalen, vol. 2, TU Wien Academic Press, 2021, pp. 143–152,
    doi:<a href="https://doi.org/10.34727/2021/isbn.978-3-85448-046-4_23">10.34727/2021/isbn.978-3-85448-046-4_23</a>.
  short: B. Kragl, S. Qadeer, in:, P. Ruzica, M.W. Whalen (Eds.), Proceedings of the
    21st Conference on Formal Methods in Computer-Aided Design, TU Wien Academic Press,
    2021, pp. 143–152.
conference:
  end_date: 2021-10-22
  location: Virtual
  name: 'FMCAD: Formal Methods in Computer-Aided Design'
  start_date: 2021-10-20
date_created: 2022-01-26T08:01:30Z
date_published: 2021-10-01T00:00:00Z
date_updated: 2022-01-26T08:20:41Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.34727/2021/isbn.978-3-85448-046-4_23
editor:
- first_name: Piskac
  full_name: Ruzica, Piskac
  last_name: Ruzica
- first_name: Michael W.
  full_name: Whalen, Michael W.
  last_name: Whalen
file:
- access_level: open_access
  checksum: 35438ac9f9750340b7f8ae4ae3220d9f
  content_type: application/pdf
  creator: cchlebak
  date_created: 2022-01-26T08:04:29Z
  date_updated: 2022-01-26T08:04:29Z
  file_id: '10689'
  file_name: 2021_FCAD2021_Kragl.pdf
  file_size: 390555
  relation: main_file
  success: 1
file_date_updated: 2022-01-26T08:04:29Z
has_accepted_license: '1'
intvolume: '         2'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 143–152
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Proceedings of the 21st Conference on Formal Methods in Computer-Aided
  Design
publication_identifier:
  isbn:
  - 978-3-85448-046-4
publication_status: published
publisher: TU Wien Academic Press
quality_controlled: '1'
status: public
title: The Civl verifier
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 2
year: '2021'
...
---
_id: '10694'
abstract:
- lang: eng
  text: 'In a two-player zero-sum graph game the players move a token throughout a
    graph to produce an infinite path, which determines the winner or payoff of the
    game. Traditionally, the players alternate turns in moving the token. In bidding
    games, however, the players have budgets, and in each turn, we hold an “auction”
    (bidding) to determine which player moves the token: both players simultaneously
    submit bids and the higher bidder moves the token. The bidding mechanisms differ
    in their payment schemes. Bidding games were largely studied with variants of
    first-price bidding in which only the higher bidder pays his bid. We focus on
    all-pay bidding, where both players pay their bids. Finite-duration all-pay bidding
    games were studied and shown to be technically more challenging than their first-price
    counterparts. We study for the first time, infinite-duration all-pay bidding games.
    Our most interesting results are for mean-payoff objectives: we portray a complete
    picture for games played on strongly-connected graphs. We study both pure (deterministic)
    and mixed (probabilistic) strategies and completely characterize the optimal and
    almost-sure (with probability 1) payoffs the players can respectively guarantee.
    We show that mean-payoff games under all-pay bidding exhibit the intriguing mathematical
    properties of their first-price counterparts; namely, an equivalence with random-turn
    games in which in each turn, the player who moves is selected according to a (biased)
    coin toss. The equivalences for all-pay bidding are more intricate and unexpected
    than for first-price bidding.'
acknowledgement: This research was supported in part by the Austrian Science Fund
  (FWF) under grant Z211-N23 (Wittgenstein Award), ERC CoG 863818 (FoRM-SMArt), and
  by the European Union's Horizon 2020 research and innovation programme under the
  Marie Skłodowska-Curie Grant Agreement No. 665385.
article_processing_charge: No
arxiv: 1
author:
- first_name: Guy
  full_name: Avni, Guy
  id: 463C8BC2-F248-11E8-B48F-1D18A9856A87
  last_name: Avni
  orcid: 0000-0001-5588-8287
- first_name: Ismael R
  full_name: Jecker, Ismael R
  id: 85D7C63E-7D5D-11E9-9C0F-98C4E5697425
  last_name: Jecker
- first_name: Dorde
  full_name: Zikelic, Dorde
  id: 294AA7A6-F248-11E8-B48F-1D18A9856A87
  last_name: Zikelic
  orcid: 0000-0002-4681-1699
citation:
  ama: 'Avni G, Jecker IR, Zikelic D. Infinite-duration all-pay bidding games. In:
    Marx D, ed. <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>.
    Society for Industrial and Applied Mathematics; 2021:617-636. doi:<a href="https://doi.org/10.1137/1.9781611976465.38">10.1137/1.9781611976465.38</a>'
  apa: 'Avni, G., Jecker, I. R., &#38; Zikelic, D. (2021). Infinite-duration all-pay
    bidding games. In D. Marx (Ed.), <i>Proceedings of the 2021 ACM-SIAM Symposium
    on Discrete Algorithms</i> (pp. 617–636). Virtual: Society for Industrial and
    Applied Mathematics. <a href="https://doi.org/10.1137/1.9781611976465.38">https://doi.org/10.1137/1.9781611976465.38</a>'
  chicago: Avni, Guy, Ismael R Jecker, and Dorde Zikelic. “Infinite-Duration All-Pay
    Bidding Games.” In <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>,
    edited by Dániel Marx, 617–36. Society for Industrial and Applied Mathematics,
    2021. <a href="https://doi.org/10.1137/1.9781611976465.38">https://doi.org/10.1137/1.9781611976465.38</a>.
  ieee: G. Avni, I. R. Jecker, and D. Zikelic, “Infinite-duration all-pay bidding
    games,” in <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>,
    Virtual, 2021, pp. 617–636.
  ista: 'Avni G, Jecker IR, Zikelic D. 2021. Infinite-duration all-pay bidding games.
    Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms. SODA: Symposium
    on Discrete Algorithms, 617–636.'
  mla: Avni, Guy, et al. “Infinite-Duration All-Pay Bidding Games.” <i>Proceedings
    of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>, edited by Dániel Marx,
    Society for Industrial and Applied Mathematics, 2021, pp. 617–36, doi:<a href="https://doi.org/10.1137/1.9781611976465.38">10.1137/1.9781611976465.38</a>.
  short: G. Avni, I.R. Jecker, D. Zikelic, in:, D. Marx (Ed.), Proceedings of the
    2021 ACM-SIAM Symposium on Discrete Algorithms, Society for Industrial and Applied
    Mathematics, 2021, pp. 617–636.
conference:
  end_date: 2021-01-13
  location: Virtual
  name: 'SODA: Symposium on Discrete Algorithms'
  start_date: 2021-01-10
date_created: 2022-01-27T12:11:23Z
date_published: 2021-01-01T00:00:00Z
date_updated: 2025-07-14T09:10:12Z
day: '01'
department:
- _id: GradSch
- _id: KrCh
doi: 10.1137/1.9781611976465.38
ec_funded: 1
editor:
- first_name: Dániel
  full_name: Marx, Dániel
  last_name: Marx
external_id:
  arxiv:
  - '2005.06636'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2005.06636
month: '01'
oa: 1
oa_version: Preprint
page: 617-636
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms
publication_identifier:
  isbn:
  - 978-1-61197-646-5
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Infinite-duration all-pay bidding games
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
