---
_id: '10891'
abstract:
- lang: eng
  text: We present a formal framework for the online black-box monitoring of software
    using monitors with quantitative verdict functions. Quantitative verdict functions
    have several advantages. First, quantitative monitors can be approximate, i.e.,
    the value of the verdict function does not need to correspond exactly to the value
    of the property under observation. Second, quantitative monitors can be quantified
    universally, i.e., for every possible observed behavior, the monitor tries to
    make the best effort to estimate the value of the property under observation.
    Third, quantitative monitors can watch boolean as well as quantitative properties,
    such as average response time. Fourth, quantitative monitors can use non-finite-state
    resources, such as counters. As a consequence, quantitative monitors can be compared
    according to how many resources they use (e.g., the number of counters) and how
    precisely they approximate the property under observation. This allows for a rich
    spectrum of cost-precision trade-offs in monitoring software.
acknowledgement: The formal framework for quantitative monitoring which is presented
  in this invited talk was defined jointly with N. Ege Saraç at LICS 2021. This work
  was supported in part by the Wittgenstein Award Z211-N23 of the Austrian Science
  Fund.
article_processing_charge: No
author:
- 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: 'Henzinger TA. Quantitative monitoring of software. In: <i>Software Verification</i>.
    Vol 13124. LNCS. Springer Nature; 2022:3-6. doi:<a href="https://doi.org/10.1007/978-3-030-95561-8_1">10.1007/978-3-030-95561-8_1</a>'
  apa: 'Henzinger, T. A. (2022). Quantitative monitoring of software. In <i>Software
    Verification</i> (Vol. 13124, pp. 3–6). New Haven, CT, United States: Springer
    Nature. <a href="https://doi.org/10.1007/978-3-030-95561-8_1">https://doi.org/10.1007/978-3-030-95561-8_1</a>'
  chicago: Henzinger, Thomas A. “Quantitative Monitoring of Software.” In <i>Software
    Verification</i>, 13124:3–6. LNCS. Springer Nature, 2022. <a href="https://doi.org/10.1007/978-3-030-95561-8_1">https://doi.org/10.1007/978-3-030-95561-8_1</a>.
  ieee: T. A. Henzinger, “Quantitative monitoring of software,” in <i>Software Verification</i>,
    New Haven, CT, United States, 2022, vol. 13124, pp. 3–6.
  ista: 'Henzinger TA. 2022. Quantitative monitoring of software. Software Verification.
    NSV: Numerical Software VerificationLNCS vol. 13124, 3–6.'
  mla: Henzinger, Thomas A. “Quantitative Monitoring of Software.” <i>Software Verification</i>,
    vol. 13124, Springer Nature, 2022, pp. 3–6, doi:<a href="https://doi.org/10.1007/978-3-030-95561-8_1">10.1007/978-3-030-95561-8_1</a>.
  short: T.A. Henzinger, in:, Software Verification, Springer Nature, 2022, pp. 3–6.
conference:
  end_date: 2021-10-19
  location: New Haven, CT, United States
  name: 'NSV: Numerical Software Verification'
  start_date: 2021-10-18
date_created: 2022-03-20T23:01:40Z
date_published: 2022-02-22T00:00:00Z
date_updated: 2023-08-03T06:11:55Z
day: '22'
department:
- _id: ToHe
doi: 10.1007/978-3-030-95561-8_1
external_id:
  isi:
  - '000771713200001'
intvolume: '     13124'
isi: 1
language:
- iso: eng
month: '02'
oa_version: None
page: 3-6
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Software Verification
publication_identifier:
  eissn:
  - 1611-3349
  isbn:
  - '9783030955601'
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
series_title: LNCS
status: public
title: Quantitative monitoring of software
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 13124
year: '2022'
...
---
_id: '11355'
abstract:
- lang: eng
  text: "Contract-based design is a promising methodology for taming the complexity
    of developing sophisticated systems. A formal contract distinguishes between assumptions,
    which are constraints that the designer of a component puts on the environments
    in which the component can be used safely, and guarantees, which are promises
    that the designer asks from the team that implements the component. A theory of
    formal contracts can be formalized as an interface theory, which supports the
    composition and refinement of both assumptions and guarantees.\r\nAlthough there
    is a rich landscape of contract-based design methods that address functional and
    extra-functional properties, we present the first interface theory that is designed
    for ensuring system-wide security properties. Our framework provides a refinement
    relation and a composition operation that support both incremental design and
    independent implementability. We develop our theory for both stateless and stateful
    interfaces. We illustrate the applicability of our framework with an example inspired
    from the automotive domain."
acknowledgement: This project has received funding from the European Union’s Horizon
  2020 research and innovation programme under grant agreement No 956123 and was funded
  in part by the FWF project W1255-N23 and by the ERC-2020-AdG 101020093.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Ezio
  full_name: Bartocci, Ezio
  last_name: Bartocci
- first_name: Thomas
  full_name: Ferrere, Thomas
  id: 40960E6E-F248-11E8-B48F-1D18A9856A87
  last_name: Ferrere
  orcid: 0000-0001-5199-3143
- 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: Dejan
  full_name: Nickovic, Dejan
  id: 41BCEE5C-F248-11E8-B48F-1D18A9856A87
  last_name: Nickovic
- first_name: Ana Oliveira
  full_name: Da Costa, Ana Oliveira
  last_name: Da Costa
citation:
  ama: 'Bartocci E, Ferrere T, Henzinger TA, Nickovic D, Da Costa AO. Information-flow
    interfaces. In: <i>Fundamental Approaches to Software Engineering</i>. Vol 13241.
    Springer Nature; 2022:3-22. doi:<a href="https://doi.org/10.1007/978-3-030-99429-7_1">10.1007/978-3-030-99429-7_1</a>'
  apa: 'Bartocci, E., Ferrere, T., Henzinger, T. A., Nickovic, D., &#38; Da Costa,
    A. O. (2022). Information-flow interfaces. In <i>Fundamental Approaches to Software
    Engineering</i> (Vol. 13241, pp. 3–22). Munich, Germany: Springer Nature. <a href="https://doi.org/10.1007/978-3-030-99429-7_1">https://doi.org/10.1007/978-3-030-99429-7_1</a>'
  chicago: Bartocci, Ezio, Thomas Ferrere, Thomas A Henzinger, Dejan Nickovic, and
    Ana Oliveira Da Costa. “Information-Flow Interfaces.” In <i>Fundamental Approaches
    to Software Engineering</i>, 13241:3–22. Springer Nature, 2022. <a href="https://doi.org/10.1007/978-3-030-99429-7_1">https://doi.org/10.1007/978-3-030-99429-7_1</a>.
  ieee: E. Bartocci, T. Ferrere, T. A. Henzinger, D. Nickovic, and A. O. Da Costa,
    “Information-flow interfaces,” in <i>Fundamental Approaches to Software Engineering</i>,
    Munich, Germany, 2022, vol. 13241, pp. 3–22.
  ista: 'Bartocci E, Ferrere T, Henzinger TA, Nickovic D, Da Costa AO. 2022. Information-flow
    interfaces. Fundamental Approaches to Software Engineering. FASE: Fundamental
    Approaches to Software Engineering, LNCS, vol. 13241, 3–22.'
  mla: Bartocci, Ezio, et al. “Information-Flow Interfaces.” <i>Fundamental Approaches
    to Software Engineering</i>, vol. 13241, Springer Nature, 2022, pp. 3–22, doi:<a
    href="https://doi.org/10.1007/978-3-030-99429-7_1">10.1007/978-3-030-99429-7_1</a>.
  short: E. Bartocci, T. Ferrere, T.A. Henzinger, D. Nickovic, A.O. Da Costa, in:,
    Fundamental Approaches to Software Engineering, Springer Nature, 2022, pp. 3–22.
conference:
  end_date: 2022-04-07
  location: Munich, Germany
  name: 'FASE: Fundamental Approaches to Software Engineering'
  start_date: 2022-04-02
date_created: 2022-05-08T22:01:44Z
date_published: 2022-03-29T00:00:00Z
date_updated: 2023-08-03T07:03:40Z
day: '29'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/978-3-030-99429-7_1
ec_funded: 1
external_id:
  isi:
  - '000782393600001'
file:
- access_level: open_access
  checksum: 7f6f860b20b8de2a249e9c1b4eee15cf
  content_type: application/pdf
  creator: dernst
  date_created: 2022-05-09T06:52:44Z
  date_updated: 2022-05-09T06:52:44Z
  file_id: '11357'
  file_name: 2022_LNCS_Bartocci.pdf
  file_size: 479146
  relation: main_file
  success: 1
file_date_updated: 2022-05-09T06:52:44Z
has_accepted_license: '1'
intvolume: '     13241'
isi: 1
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 3-22
project:
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
  call_identifier: H2020
  grant_number: '101020093'
  name: Vigilant Algorithmic Monitoring of Software
publication: Fundamental Approaches to Software Engineering
publication_identifier:
  eissn:
  - 1611-3349
  isbn:
  - '9783030994280'
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Information-flow interfaces
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 13241
year: '2022'
...
---
_id: '11362'
abstract:
- lang: eng
  text: "Deep learning has enabled breakthroughs in challenging computing problems
    and has emerged as the standard problem-solving tool for computer vision and natural
    language processing tasks.\r\nOne exception to this trend is safety-critical tasks
    where robustness and resilience requirements contradict the black-box nature of
    neural networks. \r\nTo deploy deep learning methods for these tasks, it is vital
    to provide guarantees on neural network agents' safety and robustness criteria.
    \r\nThis can be achieved by developing formal verification methods to verify the
    safety and robustness properties of neural networks.\r\n\r\nOur goal is to design,
    develop and assess safety verification methods for neural networks to improve
    their reliability and trustworthiness in real-world applications.\r\nThis thesis
    establishes techniques for the verification of compressed and adversarially trained
    models as well as the design of novel neural networks for verifiably safe decision-making.\r\n\r\nFirst,
    we establish the problem of verifying quantized neural networks. Quantization
    is a technique that trades numerical precision for the computational efficiency
    of running a neural network and is widely adopted in industry.\r\nWe show that
    neglecting the reduced precision when verifying a neural network can lead to wrong
    conclusions about the robustness and safety of the network, highlighting that
    novel techniques for quantized network verification are necessary. We introduce
    several bit-exact verification methods explicitly designed for quantized neural
    networks and experimentally confirm on realistic networks that the network's robustness
    and other formal properties are affected by the quantization.\r\n\r\nFurthermore,
    we perform a case study providing evidence that adversarial training, a standard
    technique for making neural networks more robust, has detrimental effects on the
    network's performance. This robustness-accuracy tradeoff has been studied before
    regarding the accuracy obtained on classification datasets where each data point
    is independent of all other data points. On the other hand, we investigate the
    tradeoff empirically in robot learning settings where a both, a high accuracy
    and a high robustness, are desirable.\r\nOur results suggest that the negative
    side-effects of adversarial training outweigh its robustness benefits in practice.\r\n\r\nFinally,
    we consider the problem of verifying safety when running a Bayesian neural network
    policy in a feedback loop with systems over the infinite time horizon. Bayesian
    neural networks are probabilistic models for learning uncertainties in the data
    and are therefore often used on robotic and healthcare applications where data
    is inherently stochastic.\r\nWe introduce a method for recalibrating Bayesian
    neural networks so that they yield probability distributions over safe decisions
    only.\r\nOur method learns a safety certificate that guarantees safety over the
    infinite time horizon to determine which decisions are safe in every possible
    state of the system.\r\nWe demonstrate the effectiveness of our approach on a
    series of reinforcement learning benchmarks."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
citation:
  ama: Lechner M. Learning verifiable representations. 2022. doi:<a href="https://doi.org/10.15479/at:ista:11362">10.15479/at:ista:11362</a>
  apa: Lechner, M. (2022). <i>Learning verifiable representations</i>. Institute of
    Science and Technology Austria. <a href="https://doi.org/10.15479/at:ista:11362">https://doi.org/10.15479/at:ista:11362</a>
  chicago: Lechner, Mathias. “Learning Verifiable Representations.” Institute of Science
    and Technology Austria, 2022. <a href="https://doi.org/10.15479/at:ista:11362">https://doi.org/10.15479/at:ista:11362</a>.
  ieee: M. Lechner, “Learning verifiable representations,” Institute of Science and
    Technology Austria, 2022.
  ista: Lechner M. 2022. Learning verifiable representations. Institute of Science
    and Technology Austria.
  mla: Lechner, Mathias. <i>Learning Verifiable Representations</i>. Institute of
    Science and Technology Austria, 2022, doi:<a href="https://doi.org/10.15479/at:ista:11362">10.15479/at:ista:11362</a>.
  short: M. Lechner, Learning Verifiable Representations, Institute of Science and
    Technology Austria, 2022.
date_created: 2022-05-12T07:14:01Z
date_published: 2022-05-12T00:00:00Z
date_updated: 2025-07-14T09:10:11Z
day: '12'
ddc:
- '004'
degree_awarded: PhD
department:
- _id: GradSch
- _id: ToHe
doi: 10.15479/at:ista:11362
ec_funded: 1
file:
- access_level: closed
  checksum: 8eefa9c7c10ca7e1a2ccdd731962a645
  content_type: application/zip
  creator: mlechner
  date_created: 2022-05-13T12:33:26Z
  date_updated: 2022-05-13T12:49:00Z
  file_id: '11378'
  file_name: src.zip
  file_size: 13210143
  relation: source_file
- access_level: open_access
  checksum: 1b9e1e5a9a83ed9d89dad2f5133dc026
  content_type: application/pdf
  creator: mlechner
  date_created: 2022-05-16T08:02:28Z
  date_updated: 2022-05-17T15:19:39Z
  file_id: '11382'
  file_name: thesis_main-a2.pdf
  file_size: 2732536
  relation: main_file
file_date_updated: 2022-05-17T15:19:39Z
has_accepted_license: '1'
keyword:
- neural networks
- verification
- machine learning
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: '124'
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
  call_identifier: H2020
  grant_number: '101020093'
  name: Vigilant Algorithmic Monitoring of Software
publication_identifier:
  isbn:
  - 978-3-99078-017-6
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '11366'
    relation: part_of_dissertation
    status: public
  - id: '7808'
    relation: part_of_dissertation
    status: public
  - id: '10666'
    relation: part_of_dissertation
    status: public
  - id: '10665'
    relation: part_of_dissertation
    status: public
  - id: '10667'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000-0002-2985-7724
title: Learning verifiable representations
tmp:
  image: /image/cc_by_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nd/4.0/legalcode
  name: Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)
  short: CC BY-ND (4.0)
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2022'
...
---
_id: '11366'
abstract:
- lang: eng
  text: "Adversarial training (i.e., training on adversarially perturbed input data)
    is a well-studied method for making neural networks robust to potential adversarial
    attacks during inference. However, the improved robustness does not\r\ncome for
    free but rather is accompanied by a decrease in overall model accuracy and performance.
    Recent work has shown that, in practical robot learning applications, the effects
    of adversarial training do not pose a fair trade-off\r\nbut inflict a net loss
    when measured in holistic robot performance. This work revisits the robustness-accuracy
    trade-off in robot learning by systematically analyzing if recent advances in
    robust training methods and theory in\r\nconjunction with adversarial robot learning
    can make adversarial training suitable for real-world robot applications. We evaluate
    a wide variety of robot learning tasks ranging from autonomous driving in a high-fidelity
    environment\r\namenable to sim-to-real deployment, to mobile robot gesture recognition.
    Our results demonstrate that, while these techniques make incremental improvements
    on the trade-off on a relative scale, the negative side-effects caused by\r\nadversarial
    training still outweigh the improvements by an order of magnitude. We conclude
    that more substantial advances in robust learning methods are necessary before
    they can benefit robot learning tasks in practice."
acknowledgement: "This work was supported in parts by the ERC-2020-AdG 101020093,
  National Science Foundation (NSF), and JP\r\nMorgan Graduate Fellowships. We thank
  Christoph Lampert for inspiring this work.\r\n"
article_number: '2204.07373'
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: Alexander
  full_name: Amini, Alexander
  last_name: Amini
- 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, Amini A, Rus D, Henzinger TA. Revisiting the adversarial robustness-accuracy
    tradeoff in robot learning. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.2204.07373">10.48550/arXiv.2204.07373</a>
  apa: Lechner, M., Amini, A., Rus, D., &#38; Henzinger, T. A. (n.d.). Revisiting
    the adversarial robustness-accuracy tradeoff in robot learning. <i>arXiv</i>.
    <a href="https://doi.org/10.48550/arXiv.2204.07373">https://doi.org/10.48550/arXiv.2204.07373</a>
  chicago: Lechner, Mathias, Alexander Amini, Daniela Rus, and Thomas A Henzinger.
    “Revisiting the Adversarial Robustness-Accuracy Tradeoff in Robot Learning.” <i>ArXiv</i>,
    n.d. <a href="https://doi.org/10.48550/arXiv.2204.07373">https://doi.org/10.48550/arXiv.2204.07373</a>.
  ieee: M. Lechner, A. Amini, D. Rus, and T. A. Henzinger, “Revisiting the adversarial
    robustness-accuracy tradeoff in robot learning,” <i>arXiv</i>. .
  ista: Lechner M, Amini A, Rus D, Henzinger TA. Revisiting the adversarial robustness-accuracy
    tradeoff in robot learning. arXiv, 2204.07373.
  mla: Lechner, Mathias, et al. “Revisiting the Adversarial Robustness-Accuracy Tradeoff
    in Robot Learning.” <i>ArXiv</i>, 2204.07373, doi:<a href="https://doi.org/10.48550/arXiv.2204.07373">10.48550/arXiv.2204.07373</a>.
  short: M. Lechner, A. Amini, D. Rus, T.A. Henzinger, ArXiv (n.d.).
date_created: 2022-05-12T13:20:17Z
date_published: 2022-04-15T00:00:00Z
date_updated: 2023-08-01T13:36:50Z
day: '15'
department:
- _id: ToHe
doi: 10.48550/arXiv.2204.07373
ec_funded: 1
external_id:
  arxiv:
  - '2204.07373'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2204.07373
month: '04'
oa: 1
oa_version: Preprint
project:
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
  call_identifier: H2020
  grant_number: '101020093'
  name: Vigilant Algorithmic Monitoring of Software
publication: arXiv
publication_status: submitted
related_material:
  record:
  - id: '11362'
    relation: dissertation_contains
    status: public
  - id: '12704'
    relation: later_version
    status: public
status: public
title: Revisiting the adversarial robustness-accuracy tradeoff in robot learning
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '11775'
abstract:
- lang: eng
  text: 'Quantitative monitoring can be universal and approximate: For every finite
    sequence of observations, the specification provides a value and the monitor outputs
    a best-effort approximation of it. The quality of the approximation may depend
    on the resources that are available to the monitor. By taking to the limit the
    sequences of specification values and monitor outputs, we obtain precision-resource
    trade-offs also for limit monitoring. This paper provides a formal framework for
    studying such trade-offs using an abstract interpretation for monitors: For each
    natural number n, the aggregate semantics of a monitor at time n is an equivalence
    relation over all sequences of at most n observations so that two equivalent sequences
    are indistinguishable to the monitor and thus mapped to the same output. This
    abstract interpretation of quantitative monitors allows us to measure the number
    of equivalence classes (or “resource use”) that is necessary for a certain precision
    up to a certain time, or at any time. Our framework offers several insights. For
    example, we identify a family of specifications for which any resource-optimal
    exact limit monitor is independent of any error permitted over finite traces.
    Moreover, we present a specification for which any resource-optimal approximate
    limit monitor does not minimize its resource use at any time. '
acknowledgement: We thank the anonymous reviewers for their helpful comments. This
  work was supported in part by the ERC-2020-AdG 101020093.
alternative_title:
- LNCS
article_processing_charge: Yes
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: Nicolas Adrien
  full_name: Mazzocchi, Nicolas Adrien
  id: b26baa86-3308-11ec-87b0-8990f34baa85
  last_name: Mazzocchi
- first_name: Naci E
  full_name: Sarac, Naci E
  id: 8C6B42F8-C8E6-11E9-A03A-F2DCE5697425
  last_name: Sarac
citation:
  ama: 'Henzinger TA, Mazzocchi NA, Sarac NE. Abstract monitors for quantitative specifications.
    In: <i>22nd International Conference on Runtime Verification</i>. Vol 13498. Springer
    Nature; 2022:200-220. doi:<a href="https://doi.org/10.1007/978-3-031-17196-3_11">10.1007/978-3-031-17196-3_11</a>'
  apa: 'Henzinger, T. A., Mazzocchi, N. A., &#38; Sarac, N. E. (2022). Abstract monitors
    for quantitative specifications. In <i>22nd International Conference on Runtime
    Verification</i> (Vol. 13498, pp. 200–220). Tbilisi, Georgia: Springer Nature.
    <a href="https://doi.org/10.1007/978-3-031-17196-3_11">https://doi.org/10.1007/978-3-031-17196-3_11</a>'
  chicago: Henzinger, Thomas A, Nicolas Adrien Mazzocchi, and Naci E Sarac. “Abstract
    Monitors for Quantitative Specifications.” In <i>22nd International Conference
    on Runtime Verification</i>, 13498:200–220. Springer Nature, 2022. <a href="https://doi.org/10.1007/978-3-031-17196-3_11">https://doi.org/10.1007/978-3-031-17196-3_11</a>.
  ieee: T. A. Henzinger, N. A. Mazzocchi, and N. E. Sarac, “Abstract monitors for
    quantitative specifications,” in <i>22nd International Conference on Runtime Verification</i>,
    Tbilisi, Georgia, 2022, vol. 13498, pp. 200–220.
  ista: 'Henzinger TA, Mazzocchi NA, Sarac NE. 2022. Abstract monitors for quantitative
    specifications. 22nd International Conference on Runtime Verification. RV: Runtime
    Verification, LNCS, vol. 13498, 200–220.'
  mla: Henzinger, Thomas A., et al. “Abstract Monitors for Quantitative Specifications.”
    <i>22nd International Conference on Runtime Verification</i>, vol. 13498, Springer
    Nature, 2022, pp. 200–20, doi:<a href="https://doi.org/10.1007/978-3-031-17196-3_11">10.1007/978-3-031-17196-3_11</a>.
  short: T.A. Henzinger, N.A. Mazzocchi, N.E. Sarac, in:, 22nd International Conference
    on Runtime Verification, Springer Nature, 2022, pp. 200–220.
conference:
  end_date: 2022-09-30
  location: Tbilisi, Georgia
  name: 'RV: Runtime Verification'
  start_date: 2022-09-28
date_created: 2022-08-08T17:09:09Z
date_published: 2022-09-23T00:00:00Z
date_updated: 2023-08-03T13:38:46Z
day: '23'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
doi: 10.1007/978-3-031-17196-3_11
ec_funded: 1
external_id:
  isi:
  - '000866539700011'
file:
- access_level: open_access
  checksum: 05c7dcfbb9053a98f46441fb2eccb213
  content_type: application/pdf
  creator: dernst
  date_created: 2023-01-20T07:34:50Z
  date_updated: 2023-01-20T07:34:50Z
  file_id: '12317'
  file_name: 2022_LNCS_RV_Henzinger.pdf
  file_size: 477110
  relation: main_file
  success: 1
file_date_updated: 2023-01-20T07:34:50Z
has_accepted_license: '1'
intvolume: '     13498'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 200-220
project:
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
  call_identifier: H2020
  grant_number: '101020093'
  name: Vigilant Algorithmic Monitoring of Software
publication: 22nd International Conference on Runtime Verification
publication_identifier:
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Abstract monitors for quantitative specifications
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 13498
year: '2022'
...
---
_id: '12010'
abstract:
- lang: eng
  text: World models learn behaviors in a latent imagination space to enhance the
    sample-efficiency of deep reinforcement learning (RL) algorithms. While learning
    world models for high-dimensional observations (e.g., pixel inputs) has become
    practicable on standard RL benchmarks and some games, their effectiveness in real-world
    robotics applications has not been explored. In this paper, we investigate how
    such agents generalize to real-world autonomous vehicle control tasks, where advanced
    model-free deep RL algorithms fail. In particular, we set up a series of time-lap
    tasks for an F1TENTH racing robot, equipped with a high-dimensional LiDAR sensor,
    on a set of test tracks with a gradual increase in their complexity. In this continuous-control
    setting, we show that model-based agents capable of learning in imagination substantially
    outperform model-free agents with respect to performance, sample efficiency, successful
    task completion, and generalization. Moreover, we show that the generalization
    ability of model-based agents strongly depends on the choice of their observation
    model. We provide extensive empirical evidence for the effectiveness of world
    models provided with long enough memory horizons in sim2real tasks.
acknowledgement: L.B. was supported by the Doctoral College Resilient Embedded Systems.
  M.L. was supported in part by the ERC2020-AdG 101020093 and the Austrian Science
  Fund (FWF) under grant Z211-N23 (Wittgenstein Award). R.H. and D.R. were supported
  by The Boeing Company and the Office of Naval Research (ONR) Grant N00014-18-1-2830.
  R.G. was partially supported by the Horizon-2020 ECSEL Project grant No. 783163
  (iDev40) and A.B. by FFG Project ADEX.
article_processing_charge: No
arxiv: 1
author:
- first_name: Axel
  full_name: Brunnbauer, Axel
  last_name: Brunnbauer
- first_name: Luigi
  full_name: Berducci, Luigi
  last_name: Berducci
- first_name: Andreas
  full_name: Brandstatter, Andreas
  last_name: Brandstatter
- 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: Daniela
  full_name: Rus, Daniela
  last_name: Rus
- first_name: Radu
  full_name: Grosu, Radu
  last_name: Grosu
citation:
  ama: 'Brunnbauer A, Berducci L, Brandstatter A, et al. Latent imagination facilitates
    zero-shot transfer in autonomous racing. In: <i>2022 International Conference
    on Robotics and Automation</i>. IEEE; 2022:7513-7520. doi:<a href="https://doi.org/10.1109/ICRA46639.2022.9811650">10.1109/ICRA46639.2022.9811650</a>'
  apa: 'Brunnbauer, A., Berducci, L., Brandstatter, A., Lechner, M., Hasani, R., Rus,
    D., &#38; Grosu, R. (2022). Latent imagination facilitates zero-shot transfer
    in autonomous racing. In <i>2022 International Conference on Robotics and Automation</i>
    (pp. 7513–7520). Philadelphia, PA, United States: IEEE. <a href="https://doi.org/10.1109/ICRA46639.2022.9811650">https://doi.org/10.1109/ICRA46639.2022.9811650</a>'
  chicago: Brunnbauer, Axel, Luigi Berducci, Andreas Brandstatter, Mathias Lechner,
    Ramin Hasani, Daniela Rus, and Radu Grosu. “Latent Imagination Facilitates Zero-Shot
    Transfer in Autonomous Racing.” In <i>2022 International Conference on Robotics
    and Automation</i>, 7513–20. IEEE, 2022. <a href="https://doi.org/10.1109/ICRA46639.2022.9811650">https://doi.org/10.1109/ICRA46639.2022.9811650</a>.
  ieee: A. Brunnbauer <i>et al.</i>, “Latent imagination facilitates zero-shot transfer
    in autonomous racing,” in <i>2022 International Conference on Robotics and Automation</i>,
    Philadelphia, PA, United States, 2022, pp. 7513–7520.
  ista: 'Brunnbauer A, Berducci L, Brandstatter A, Lechner M, Hasani R, Rus D, Grosu
    R. 2022. Latent imagination facilitates zero-shot transfer in autonomous racing.
    2022 International Conference on Robotics and Automation. ICRA: International
    Conference on Robotics and Automation, 7513–7520.'
  mla: Brunnbauer, Axel, et al. “Latent Imagination Facilitates Zero-Shot Transfer
    in Autonomous Racing.” <i>2022 International Conference on Robotics and Automation</i>,
    IEEE, 2022, pp. 7513–20, doi:<a href="https://doi.org/10.1109/ICRA46639.2022.9811650">10.1109/ICRA46639.2022.9811650</a>.
  short: A. Brunnbauer, L. Berducci, A. Brandstatter, M. Lechner, R. Hasani, D. Rus,
    R. Grosu, in:, 2022 International Conference on Robotics and Automation, IEEE,
    2022, pp. 7513–7520.
conference:
  end_date: 2022-05-27
  location: Philadelphia, PA, United States
  name: 'ICRA: International Conference on Robotics and Automation'
  start_date: 2022-05-23
date_created: 2022-09-04T22:02:02Z
date_published: 2022-07-12T00:00:00Z
date_updated: 2022-09-05T08:46:12Z
day: '12'
department:
- _id: ToHe
doi: 10.1109/ICRA46639.2022.9811650
ec_funded: 1
external_id:
  arxiv:
  - '2103.04909'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2103.04909
month: '07'
oa: 1
oa_version: Preprint
page: 7513-7520
project:
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
  call_identifier: H2020
  grant_number: '101020093'
  name: Vigilant Algorithmic Monitoring of Software
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: 2022 International Conference on Robotics and Automation
publication_identifier:
  isbn:
  - '9781728196817'
  issn:
  - 1050-4729
publication_status: published
publisher: IEEE
quality_controlled: '1'
scopus_import: '1'
status: public
title: Latent imagination facilitates zero-shot transfer in autonomous racing
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '12147'
abstract:
- lang: eng
  text: Continuous-time neural networks are a class of machine learning systems that
    can tackle representation learning on spatiotemporal decision-making tasks. These
    models are typically represented by continuous differential equations. However,
    their expressive power when they are deployed on computers is bottlenecked by
    numerical differential equation solvers. This limitation has notably slowed down
    the scaling and understanding of numerous natural physical phenomena such as the
    dynamics of nervous systems. Ideally, we would circumvent this bottleneck by solving
    the given dynamical system in closed form. This is known to be intractable in
    general. Here, we show that it is possible to closely approximate the interaction
    between neurons and synapses—the building blocks of natural and artificial neural
    networks—constructed by liquid time-constant networks efficiently in closed form.
    To this end, we compute a tightly bounded approximation of the solution of an
    integral appearing in liquid time-constant dynamics that has had no known closed-form
    solution so far. This closed-form solution impacts the design of continuous-time
    and continuous-depth neural models. For instance, since time appears explicitly
    in closed form, the formulation relaxes the need for complex numerical solvers.
    Consequently, we obtain models that are between one and five orders of magnitude
    faster in training and inference compared with differential equation-based counterparts.
    More importantly, in contrast to ordinary differential equation-based continuous
    networks, closed-form networks can scale remarkably well compared with other deep
    learning instances. Lastly, as these models are derived from liquid networks,
    they show good performance in time-series modelling compared with advanced recurrent
    neural network models.
acknowledgement: This research was supported in part by the AI2050 program at Schmidt
  Futures (grant G-22-63172), the Boeing Company, and 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 and 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. This work was further supported by The Boeing Company
  and Office of Naval Research grant N00014-18-1-2830. M.T. is supported by the Poul
  Due Jensen Foundation, grant 883901. M.L. was supported in part by the Austrian
  Science Fund under grant Z211-N23 (Wittgenstein Award). A.A. was supported by the
  National Science Foundation Graduate Research Fellowship Program. We thank T.-H.
  Wang, P. Kao, M. Chahine, W. Xiao, X. Li, L. Yin and Y. Ben for useful suggestions
  and for testing of CfC models to confirm the results across other domains.
article_processing_charge: No
article_type: original
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: Lucas
  full_name: Liebenwein, Lucas
  last_name: Liebenwein
- first_name: Aaron
  full_name: Ray, Aaron
  last_name: Ray
- first_name: Max
  full_name: Tschaikowski, Max
  last_name: Tschaikowski
- first_name: Gerald
  full_name: Teschl, Gerald
  last_name: Teschl
- first_name: Daniela
  full_name: Rus, Daniela
  last_name: Rus
citation:
  ama: Hasani R, Lechner M, Amini A, et al. Closed-form continuous-time neural networks.
    <i>Nature Machine Intelligence</i>. 2022;4(11):992-1003. doi:<a href="https://doi.org/10.1038/s42256-022-00556-7">10.1038/s42256-022-00556-7</a>
  apa: Hasani, R., Lechner, M., Amini, A., Liebenwein, L., Ray, A., Tschaikowski,
    M., … Rus, D. (2022). Closed-form continuous-time neural networks. <i>Nature Machine
    Intelligence</i>. Springer Nature. <a href="https://doi.org/10.1038/s42256-022-00556-7">https://doi.org/10.1038/s42256-022-00556-7</a>
  chicago: Hasani, Ramin, Mathias Lechner, Alexander Amini, Lucas Liebenwein, Aaron
    Ray, Max Tschaikowski, Gerald Teschl, and Daniela Rus. “Closed-Form Continuous-Time
    Neural Networks.” <i>Nature Machine Intelligence</i>. Springer Nature, 2022. <a
    href="https://doi.org/10.1038/s42256-022-00556-7">https://doi.org/10.1038/s42256-022-00556-7</a>.
  ieee: R. Hasani <i>et al.</i>, “Closed-form continuous-time neural networks,” <i>Nature
    Machine Intelligence</i>, vol. 4, no. 11. Springer Nature, pp. 992–1003, 2022.
  ista: Hasani R, Lechner M, Amini A, Liebenwein L, Ray A, Tschaikowski M, Teschl
    G, Rus D. 2022. Closed-form continuous-time neural networks. Nature Machine Intelligence.
    4(11), 992–1003.
  mla: Hasani, Ramin, et al. “Closed-Form Continuous-Time Neural Networks.” <i>Nature
    Machine Intelligence</i>, vol. 4, no. 11, Springer Nature, 2022, pp. 992–1003,
    doi:<a href="https://doi.org/10.1038/s42256-022-00556-7">10.1038/s42256-022-00556-7</a>.
  short: R. Hasani, M. Lechner, A. Amini, L. Liebenwein, A. Ray, M. Tschaikowski,
    G. Teschl, D. Rus, Nature Machine Intelligence 4 (2022) 992–1003.
date_created: 2023-01-12T12:07:21Z
date_published: 2022-11-15T00:00:00Z
date_updated: 2023-08-04T09:00:10Z
day: '15'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1038/s42256-022-00556-7
external_id:
  arxiv:
  - '2106.13898'
  isi:
  - '000884215600003'
file:
- access_level: open_access
  checksum: b4789122ce04bfb4ac042390f59aaa8b
  content_type: application/pdf
  creator: dernst
  date_created: 2023-01-24T09:49:44Z
  date_updated: 2023-01-24T09:49:44Z
  file_id: '12355'
  file_name: 2022_NatureMachineIntelligence_Hasani.pdf
  file_size: 3259553
  relation: main_file
  success: 1
file_date_updated: 2023-01-24T09:49:44Z
has_accepted_license: '1'
intvolume: '         4'
isi: 1
issue: '11'
keyword:
- Artificial Intelligence
- Computer Networks and Communications
- Computer Vision and Pattern Recognition
- Human-Computer Interaction
- Software
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 992-1003
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Nature Machine Intelligence
publication_identifier:
  issn:
  - 2522-5839
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - relation: erratum
    url: https://doi.org/10.1038/s42256-022-00597-y
scopus_import: '1'
status: public
title: Closed-form continuous-time neural networks
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: 4
year: '2022'
...
---
_id: '8912'
abstract:
- lang: eng
  text: "For automata, synchronization, the problem of bringing an automaton to a
    particular state regardless of its initial state, is important. It has several
    applications in practice and is related to a fifty-year-old conjecture on the
    length of the shortest synchronizing word. Although using shorter words increases
    the effectiveness in practice, finding a shortest one (which is not necessarily
    unique) is NP-hard. For this reason, there exist various heuristics in the literature.
    However, high-quality heuristics such as SynchroP producing relatively shorter
    sequences are very expensive and can take hours when the automaton has tens of
    thousands of states. The SynchroP heuristic has been frequently used as a benchmark
    to evaluate the performance of the new heuristics. In this work, we first improve
    the runtime of SynchroP and its variants by using algorithmic techniques. We then
    focus on adapting SynchroP for many-core architectures,\r\nand overall, we obtain
    more than 1000× speedup on GPUs compared to naive sequential implementation that
    has been frequently used as a benchmark to evaluate new heuristics in the literature.
    We also propose two SynchroP variants and evaluate their performance."
acknowledgement: This work was supported by The Scientific and Technological Research
  Council of Turkey (TUBITAK) [grant number 114E569]. This research was supported
  in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).
  We would like to thank the authors of (Roman & Szykula, 2015) for providing their
  heuristics implementations, which we used to compare our SynchroP implementation
  as given in Table 11.
article_number: '114203'
article_processing_charge: No
article_type: original
author:
- first_name: Naci E
  full_name: Sarac, Naci E
  id: 8C6B42F8-C8E6-11E9-A03A-F2DCE5697425
  last_name: Sarac
- first_name: Ömer Faruk
  full_name: Altun, Ömer Faruk
  last_name: Altun
- first_name: Kamil Tolga
  full_name: Atam, Kamil Tolga
  last_name: Atam
- first_name: Sertac
  full_name: Karahoda, Sertac
  last_name: Karahoda
- first_name: Kamer
  full_name: Kaya, Kamer
  last_name: Kaya
- first_name: Hüsnü
  full_name: Yenigün, Hüsnü
  last_name: Yenigün
citation:
  ama: Sarac NE, Altun ÖF, Atam KT, Karahoda S, Kaya K, Yenigün H. Boosting expensive
    synchronizing heuristics. <i>Expert Systems with Applications</i>. 2021;167(4).
    doi:<a href="https://doi.org/10.1016/j.eswa.2020.114203">10.1016/j.eswa.2020.114203</a>
  apa: Sarac, N. E., Altun, Ö. F., Atam, K. T., Karahoda, S., Kaya, K., &#38; Yenigün,
    H. (2021). Boosting expensive synchronizing heuristics. <i>Expert Systems with
    Applications</i>. Elsevier. <a href="https://doi.org/10.1016/j.eswa.2020.114203">https://doi.org/10.1016/j.eswa.2020.114203</a>
  chicago: Sarac, Naci E, Ömer Faruk Altun, Kamil Tolga Atam, Sertac Karahoda, Kamer
    Kaya, and Hüsnü Yenigün. “Boosting Expensive Synchronizing Heuristics.” <i>Expert
    Systems with Applications</i>. Elsevier, 2021. <a href="https://doi.org/10.1016/j.eswa.2020.114203">https://doi.org/10.1016/j.eswa.2020.114203</a>.
  ieee: N. E. Sarac, Ö. F. Altun, K. T. Atam, S. Karahoda, K. Kaya, and H. Yenigün,
    “Boosting expensive synchronizing heuristics,” <i>Expert Systems with Applications</i>,
    vol. 167, no. 4. Elsevier, 2021.
  ista: Sarac NE, Altun ÖF, Atam KT, Karahoda S, Kaya K, Yenigün H. 2021. Boosting
    expensive synchronizing heuristics. Expert Systems with Applications. 167(4),
    114203.
  mla: Sarac, Naci E., et al. “Boosting Expensive Synchronizing Heuristics.” <i>Expert
    Systems with Applications</i>, vol. 167, no. 4, 114203, Elsevier, 2021, doi:<a
    href="https://doi.org/10.1016/j.eswa.2020.114203">10.1016/j.eswa.2020.114203</a>.
  short: N.E. Sarac, Ö.F. Altun, K.T. Atam, S. Karahoda, K. Kaya, H. Yenigün, Expert
    Systems with Applications 167 (2021).
date_created: 2020-12-02T13:34:25Z
date_published: 2021-04-01T00:00:00Z
date_updated: 2023-08-04T11:19:00Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1016/j.eswa.2020.114203
external_id:
  isi:
  - '000640531100038'
file:
- access_level: open_access
  checksum: 600c2f81bc898a725bcfa7cf26ff4fed
  content_type: application/pdf
  creator: esarac
  date_created: 2020-12-02T13:33:51Z
  date_updated: 2020-12-02T13:33:51Z
  file_id: '8913'
  file_name: synchroPaperRevised.pdf
  file_size: 634967
  relation: main_file
file_date_updated: 2020-12-02T13:33:51Z
has_accepted_license: '1'
intvolume: '       167'
isi: 1
issue: '4'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Submitted Version
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Expert Systems with Applications
publication_identifier:
  issn:
  - '09574174'
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Boosting expensive synchronizing heuristics
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 167
year: '2021'
...
---
_id: '9200'
abstract:
- lang: eng
  text: Formal design of embedded and cyber-physical systems relies on mathematical
    modeling. In this paper, we consider the model class of hybrid automata whose
    dynamics are defined by affine differential equations. Given a set of time-series
    data, we present an algorithmic approach to synthesize a hybrid automaton exhibiting
    behavior that is close to the data, up to a specified precision, and changes in
    synchrony with the data. A fundamental problem in our synthesis algorithm is to
    check membership of a time series in a hybrid automaton. Our solution integrates
    reachability and optimization techniques for affine dynamical systems to obtain
    both a sufficient and a necessary condition for membership, combined in a refinement
    framework. The algorithm processes one time series at a time and hence can be
    interrupted, provide an intermediate result, and be resumed. We report experimental
    results demonstrating the applicability of our synthesis approach.
acknowledgement: This research was supported in part by the Austrian Science Fund
  (FWF) under grant Z211-N23 (Wittgenstein Award) and the European Union’s Horizon
  2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement
  No. 754411.
article_processing_charge: No
arxiv: 1
author:
- first_name: Miriam
  full_name: Garcia Soto, Miriam
  id: 4B3207F6-F248-11E8-B48F-1D18A9856A87
  last_name: Garcia Soto
  orcid: 0000-0003-2936-5719
- 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: Christian
  full_name: Schilling, Christian
  id: 3A2F4DCE-F248-11E8-B48F-1D18A9856A87
  last_name: Schilling
  orcid: 0000-0003-3658-1065
citation:
  ama: 'Garcia Soto M, Henzinger TA, Schilling C. Synthesis of hybrid automata with
    affine dynamics from time-series data. In: <i>HSCC ’21: Proceedings of the 24th
    International Conference on Hybrid Systems: Computation and Control</i>. Association
    for Computing Machinery; 2021:2102.12734. doi:<a href="https://doi.org/10.1145/3447928.3456704">10.1145/3447928.3456704</a>'
  apa: 'Garcia Soto, M., Henzinger, T. A., &#38; Schilling, C. (2021). Synthesis of
    hybrid automata with affine dynamics from time-series data. In <i>HSCC ’21: Proceedings
    of the 24th International Conference on Hybrid Systems: Computation and Control</i>
    (p. 2102.12734). Nashville, TN, United States: Association for Computing Machinery.
    <a href="https://doi.org/10.1145/3447928.3456704">https://doi.org/10.1145/3447928.3456704</a>'
  chicago: 'Garcia Soto, Miriam, Thomas A Henzinger, and Christian Schilling. “Synthesis
    of Hybrid Automata with Affine Dynamics from Time-Series Data.” In <i>HSCC ’21:
    Proceedings of the 24th International Conference on Hybrid Systems: Computation
    and Control</i>, 2102.12734. Association for Computing Machinery, 2021. <a href="https://doi.org/10.1145/3447928.3456704">https://doi.org/10.1145/3447928.3456704</a>.'
  ieee: 'M. Garcia Soto, T. A. Henzinger, and C. Schilling, “Synthesis of hybrid automata
    with affine dynamics from time-series data,” in <i>HSCC ’21: Proceedings of the
    24th International Conference on Hybrid Systems: Computation and Control</i>,
    Nashville, TN, United States, 2021, p. 2102.12734.'
  ista: 'Garcia Soto M, Henzinger TA, Schilling C. 2021. Synthesis of hybrid automata
    with affine dynamics from time-series data. HSCC ’21: Proceedings of the 24th
    International Conference on Hybrid Systems: Computation and Control. HSCC: International
    Conference on Hybrid Systems Computation and Control, 2102.12734.'
  mla: 'Garcia Soto, Miriam, et al. “Synthesis of Hybrid Automata with Affine Dynamics
    from Time-Series Data.” <i>HSCC ’21: Proceedings of the 24th International Conference
    on Hybrid Systems: Computation and Control</i>, Association for Computing Machinery,
    2021, p. 2102.12734, doi:<a href="https://doi.org/10.1145/3447928.3456704">10.1145/3447928.3456704</a>.'
  short: 'M. Garcia Soto, T.A. Henzinger, C. Schilling, in:, HSCC ’21: Proceedings
    of the 24th International Conference on Hybrid Systems: Computation and Control,
    Association for Computing Machinery, 2021, p. 2102.12734.'
conference:
  end_date: 2021-05-21
  location: Nashville, TN, United States
  name: 'HSCC: International Conference on Hybrid Systems Computation and Control'
  start_date: 2021-05-19
date_created: 2021-02-26T16:30:39Z
date_published: 2021-05-01T00:00:00Z
date_updated: 2023-08-07T13:49:33Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1145/3447928.3456704
ec_funded: 1
external_id:
  arxiv:
  - '2102.12734'
  isi:
  - '000932821700028'
file:
- access_level: open_access
  checksum: 4c1202c1abf71384c3ee6fea88c2f80e
  content_type: application/pdf
  creator: kschuh
  date_created: 2021-05-25T13:53:22Z
  date_updated: 2021-05-25T13:53:22Z
  file_id: '9424'
  file_name: 2021_HSCC_Soto.pdf
  file_size: 1474786
  relation: main_file
  success: 1
file_date_updated: 2021-05-25T13:53:22Z
has_accepted_license: '1'
isi: 1
keyword:
- hybrid automaton
- membership
- system identification
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: '2102.12734'
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: 'HSCC ''21: Proceedings of the 24th International Conference on Hybrid
  Systems: Computation and Control'
publication_identifier:
  isbn:
  - '9781450383394'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Synthesis of hybrid automata with affine dynamics from time-series data
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '9239'
abstract:
- lang: eng
  text: 'A graph game proceeds as follows: two players move a token through a graph
    to produce a finite or infinite path, which determines the payoff of the game.
    We study bidding games in which in each turn, an auction determines which player
    moves the token. Bidding games were largely studied in combination with two variants
    of first-price auctions called “Richman” and “poorman” bidding. We study taxman
    bidding, which span the spectrum between the two. The game is parameterized by
    a constant : portion τ of the winning bid is paid to the other player, and portion  to
    the bank. While finite-duration (reachability) taxman games have been studied
    before, we present, for the first time, results on infinite-duration taxman games:
    we unify, generalize, and simplify previous equivalences between bidding games
    and a class of stochastic games called random-turn games.'
article_processing_charge: No
article_type: original
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: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000-0002-2985-7724
- first_name: Đorđe
  full_name: Žikelić, Đorđe
  last_name: Žikelić
citation:
  ama: Avni G, Henzinger TA, Žikelić Đ. Bidding mechanisms in graph games. <i>Journal
    of Computer and System Sciences</i>. 2021;119(8):133-144. doi:<a href="https://doi.org/10.1016/j.jcss.2021.02.008">10.1016/j.jcss.2021.02.008</a>
  apa: Avni, G., Henzinger, T. A., &#38; Žikelić, Đ. (2021). Bidding mechanisms in
    graph games. <i>Journal of Computer and System Sciences</i>. Elsevier. <a href="https://doi.org/10.1016/j.jcss.2021.02.008">https://doi.org/10.1016/j.jcss.2021.02.008</a>
  chicago: Avni, Guy, Thomas A Henzinger, and Đorđe Žikelić. “Bidding Mechanisms in
    Graph Games.” <i>Journal of Computer and System Sciences</i>. Elsevier, 2021.
    <a href="https://doi.org/10.1016/j.jcss.2021.02.008">https://doi.org/10.1016/j.jcss.2021.02.008</a>.
  ieee: G. Avni, T. A. Henzinger, and Đ. Žikelić, “Bidding mechanisms in graph games,”
    <i>Journal of Computer and System Sciences</i>, vol. 119, no. 8. Elsevier, pp.
    133–144, 2021.
  ista: Avni G, Henzinger TA, Žikelić Đ. 2021. Bidding mechanisms in graph games.
    Journal of Computer and System Sciences. 119(8), 133–144.
  mla: Avni, Guy, et al. “Bidding Mechanisms in Graph Games.” <i>Journal of Computer
    and System Sciences</i>, vol. 119, no. 8, Elsevier, 2021, pp. 133–44, doi:<a href="https://doi.org/10.1016/j.jcss.2021.02.008">10.1016/j.jcss.2021.02.008</a>.
  short: G. Avni, T.A. Henzinger, Đ. Žikelić, Journal of Computer and System Sciences
    119 (2021) 133–144.
date_created: 2021-03-14T23:01:32Z
date_published: 2021-03-03T00:00:00Z
date_updated: 2023-08-07T14:08:34Z
day: '03'
department:
- _id: ToHe
doi: 10.1016/j.jcss.2021.02.008
external_id:
  arxiv:
  - '1905.03835'
  isi:
  - '000634149800009'
intvolume: '       119'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.1905.03835
month: '03'
oa: 1
oa_version: Preprint
page: 133-144
publication: Journal of Computer and System Sciences
publication_identifier:
  eissn:
  - 1090-2724
  issn:
  - 0022-0000
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '6884'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Bidding mechanisms in graph games
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 119
year: '2021'
...
---
_id: '9281'
abstract:
- lang: eng
  text: We comment on two formal proofs of Fermat's sum of two squares theorem, written
    using the Mathematical Components libraries of the Coq proof assistant. The first
    one follows Zagier's celebrated one-sentence proof; the second follows David Christopher's
    recent new proof relying on partition-theoretic arguments. Both formal proofs
    rely on a general property of involutions of finite sets, of independent interest.
    The proof technique consists for the most part of automating recurrent tasks (such
    as case distinctions and computations on natural numbers) via ad hoc tactics.
article_number: '2103.11389'
article_processing_charge: No
arxiv: 1
author:
- first_name: Guillaume
  full_name: Dubach, Guillaume
  id: D5C6A458-10C4-11EA-ABF4-A4B43DDC885E
  last_name: Dubach
  orcid: 0000-0001-6892-8137
- first_name: Fabian
  full_name: Mühlböck, Fabian
  id: 6395C5F6-89DF-11E9-9C97-6BDFE5697425
  last_name: Mühlböck
  orcid: 0000-0003-1548-0177
citation:
  ama: Dubach G, Mühlböck F. Formal verification of Zagier’s one-sentence proof. <i>arXiv</i>.
    doi:<a href="https://doi.org/10.48550/arXiv.2103.11389">10.48550/arXiv.2103.11389</a>
  apa: Dubach, G., &#38; Mühlböck, F. (n.d.). Formal verification of Zagier’s one-sentence
    proof. <i>arXiv</i>. <a href="https://doi.org/10.48550/arXiv.2103.11389">https://doi.org/10.48550/arXiv.2103.11389</a>
  chicago: Dubach, Guillaume, and Fabian Mühlböck. “Formal Verification of Zagier’s
    One-Sentence Proof.” <i>ArXiv</i>, n.d. <a href="https://doi.org/10.48550/arXiv.2103.11389">https://doi.org/10.48550/arXiv.2103.11389</a>.
  ieee: G. Dubach and F. Mühlböck, “Formal verification of Zagier’s one-sentence proof,”
    <i>arXiv</i>. .
  ista: Dubach G, Mühlböck F. Formal verification of Zagier’s one-sentence proof.
    arXiv, 2103.11389.
  mla: Dubach, Guillaume, and Fabian Mühlböck. “Formal Verification of Zagier’s One-Sentence
    Proof.” <i>ArXiv</i>, 2103.11389, doi:<a href="https://doi.org/10.48550/arXiv.2103.11389">10.48550/arXiv.2103.11389</a>.
  short: G. Dubach, F. Mühlböck, ArXiv (n.d.).
date_created: 2021-03-23T05:38:48Z
date_published: 2021-03-21T00:00:00Z
date_updated: 2023-05-03T10:26:45Z
day: '21'
department:
- _id: LaEr
- _id: ToHe
doi: 10.48550/arXiv.2103.11389
ec_funded: 1
external_id:
  arxiv:
  - '2103.11389'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2103.11389
month: '03'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: arXiv
publication_status: submitted
related_material:
  record:
  - id: '9946'
    relation: other
    status: public
status: public
title: Formal verification of Zagier's one-sentence proof
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '9356'
abstract:
- lang: eng
  text: 'In runtime verification, a monitor watches a trace of a system and, if possible,
    decides after observing each finite prefix whether or not the unknown infinite
    trace satisfies a given specification. We generalize the theory of runtime verification
    to monitors that attempt to estimate numerical values of quantitative trace properties
    (instead of attempting to conclude boolean values of trace specifications), such
    as maximal or average response time along a trace. Quantitative monitors are approximate:
    with every finite prefix, they can improve their estimate of the infinite trace''s
    unknown property value. Consequently, quantitative monitors can be compared with
    regard to a precision-cost trade-off: better approximations of the property value
    require more monitor resources, such as states (in the case of finite-state monitors)
    or registers, and additional resources yield better approximations. We introduce
    a formal framework for quantitative and approximate monitoring, show how it conservatively
    generalizes the classical boolean setting for monitoring, and give several precision-cost
    trade-offs for monitors. For example, we prove that there are quantitative properties
    for which every additional register improves monitoring precision.'
acknowledgement: We thank the anonymous reviewers for their helpful comments. This
  research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23
  (Wittgenstein Award).
article_number: '9470547'
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: Naci E
  full_name: Sarac, Naci E
  id: 8C6B42F8-C8E6-11E9-A03A-F2DCE5697425
  last_name: Sarac
citation:
  ama: 'Henzinger TA, Sarac NE. Quantitative and approximate monitoring. In: <i>Proceedings
    of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science</i>. Institute
    of Electrical and Electronics Engineers; 2021. doi:<a href="https://doi.org/10.1109/LICS52264.2021.9470547">10.1109/LICS52264.2021.9470547</a>'
  apa: 'Henzinger, T. A., &#38; Sarac, N. E. (2021). Quantitative and approximate
    monitoring. In <i>Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in
    Computer Science</i>. Online: Institute of Electrical and Electronics Engineers.
    <a href="https://doi.org/10.1109/LICS52264.2021.9470547">https://doi.org/10.1109/LICS52264.2021.9470547</a>'
  chicago: Henzinger, Thomas A, and Naci E Sarac. “Quantitative and Approximate Monitoring.”
    In <i>Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science</i>.
    Institute of Electrical and Electronics Engineers, 2021. <a href="https://doi.org/10.1109/LICS52264.2021.9470547">https://doi.org/10.1109/LICS52264.2021.9470547</a>.
  ieee: T. A. Henzinger and N. E. Sarac, “Quantitative and approximate monitoring,”
    in <i>Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science</i>,
    Online, 2021.
  ista: 'Henzinger TA, Sarac NE. 2021. Quantitative and approximate monitoring. Proceedings
    of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science. LICS: Symposium
    on Logic in Computer Science, 9470547.'
  mla: Henzinger, Thomas A., and Naci E. Sarac. “Quantitative and Approximate Monitoring.”
    <i>Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science</i>,
    9470547, Institute of Electrical and Electronics Engineers, 2021, doi:<a href="https://doi.org/10.1109/LICS52264.2021.9470547">10.1109/LICS52264.2021.9470547</a>.
  short: T.A. Henzinger, N.E. Sarac, in:, Proceedings of the 36th Annual ACM/IEEE
    Symposium on Logic in Computer Science, Institute of Electrical and Electronics
    Engineers, 2021.
conference:
  end_date: 2021-07-02
  location: Online
  name: 'LICS: Symposium on Logic in Computer Science'
  start_date: 2021-06-29
date_created: 2021-04-30T17:30:47Z
date_published: 2021-06-29T00:00:00Z
date_updated: 2023-08-08T13:52:56Z
day: '29'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
doi: 10.1109/LICS52264.2021.9470547
external_id:
  arxiv:
  - '2105.08353'
  isi:
  - '000947350400021'
file:
- access_level: open_access
  checksum: 6e4cba3f72775f479c5b1b75d1a4a0c4
  content_type: application/pdf
  creator: esarac
  date_created: 2021-06-16T08:23:54Z
  date_updated: 2021-06-16T08:23:54Z
  file_id: '9557'
  file_name: qam.pdf
  file_size: 641990
  relation: main_file
  success: 1
file_date_updated: 2021-06-16T08:23:54Z
has_accepted_license: '1'
isi: 1
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer
  Science
publication_status: published
publisher: Institute of Electrical and Electronics Engineers
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantitative and approximate monitoring
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '10108'
abstract:
- lang: eng
  text: We argue that the time is ripe to investigate differential monitoring, in
    which the specification of a program's behavior is implicitly given by a second
    program implementing the same informal specification. Similar ideas have been
    proposed before, and are currently implemented in restricted form for testing
    and specialized run-time analyses, aspects of which we combine. We discuss the
    challenges of implementing differential monitoring as a general-purpose, black-box
    run-time monitoring framework, and present promising results of a preliminary
    implementation, showing low monitoring overheads for diverse programs.
acknowledgement: The authors would like to thank Borzoo Bonakdarpour, Derek Dreyer,
  Adrian Francalanza, Owolabi Legunsen, Mae Milano, Manuel Rigger, Cesar Sanchez,
  and the members of the IST Verification Seminar for their helpful comments and insights
  on various stages of this work, as well as the reviewers of RV’21 for their helpful
  suggestions on the actual paper.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Fabian
  full_name: Mühlböck, Fabian
  id: 6395C5F6-89DF-11E9-9C97-6BDFE5697425
  last_name: Mühlböck
  orcid: 0000-0003-1548-0177
- 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: 'Mühlböck F, Henzinger TA. Differential monitoring. In: <i>International Conference
    on Runtime Verification</i>. Vol 12974. Cham: Springer Nature; 2021:231-243. doi:<a
    href="https://doi.org/10.1007/978-3-030-88494-9_12">10.1007/978-3-030-88494-9_12</a>'
  apa: 'Mühlböck, F., &#38; Henzinger, T. A. (2021). Differential monitoring. In <i>International
    Conference on Runtime Verification</i> (Vol. 12974, pp. 231–243). Cham: Springer
    Nature. <a href="https://doi.org/10.1007/978-3-030-88494-9_12">https://doi.org/10.1007/978-3-030-88494-9_12</a>'
  chicago: 'Mühlböck, Fabian, and Thomas A Henzinger. “Differential Monitoring.” In
    <i>International Conference on Runtime Verification</i>, 12974:231–43. Cham: Springer
    Nature, 2021. <a href="https://doi.org/10.1007/978-3-030-88494-9_12">https://doi.org/10.1007/978-3-030-88494-9_12</a>.'
  ieee: F. Mühlböck and T. A. Henzinger, “Differential monitoring,” in <i>International
    Conference on Runtime Verification</i>, Virtual, 2021, vol. 12974, pp. 231–243.
  ista: 'Mühlböck F, Henzinger TA. 2021. Differential monitoring. International Conference
    on Runtime Verification. RV: Runtime Verification, LNCS, vol. 12974, 231–243.'
  mla: Mühlböck, Fabian, and Thomas A. Henzinger. “Differential Monitoring.” <i>International
    Conference on Runtime Verification</i>, vol. 12974, Springer Nature, 2021, pp.
    231–43, doi:<a href="https://doi.org/10.1007/978-3-030-88494-9_12">10.1007/978-3-030-88494-9_12</a>.
  short: F. Mühlböck, T.A. Henzinger, in:, International Conference on Runtime Verification,
    Springer Nature, Cham, 2021, pp. 231–243.
conference:
  end_date: 2021-10-14
  location: Virtual
  name: 'RV: Runtime Verification'
  start_date: 2021-10-11
date_created: 2021-10-07T23:30:10Z
date_published: 2021-10-06T00:00:00Z
date_updated: 2023-08-14T07:20:30Z
day: '06'
ddc:
- '005'
department:
- _id: ToHe
doi: 10.1007/978-3-030-88494-9_12
external_id:
  isi:
  - '000719383800012'
file:
- access_level: open_access
  checksum: 554c7fdb259eda703a8b6328a6dad55a
  content_type: application/pdf
  creator: fmuehlbo
  date_created: 2021-10-07T23:32:18Z
  date_updated: 2021-10-07T23:32:18Z
  file_id: '10109'
  file_name: differentialmonitoring-cameraready-openaccess.pdf
  file_size: 350632
  relation: main_file
  success: 1
file_date_updated: 2021-10-07T23:32:18Z
has_accepted_license: '1'
intvolume: '     12974'
isi: 1
keyword:
- run-time verification
- software engineering
- implicit specification
language:
- iso: eng
month: '10'
oa: 1
oa_version: Preprint
page: 231-243
place: Cham
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: International Conference on Runtime Verification
publication_identifier:
  eisbn:
  - 978-3-030-88494-9
  eissn:
  - 1611-3349
  isbn:
  - 978-3-030-88493-2
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  record:
  - id: '9946'
    relation: extended_version
    status: public
scopus_import: '1'
status: public
title: Differential monitoring
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 12974
year: '2021'
...
---
_id: '10153'
abstract:
- lang: eng
  text: "Gradual typing is a principled means for mixing typed and untyped code. But
    typed and untyped code often exhibit different programming patterns. There is
    already substantial research investigating gradually giving types to code exhibiting
    typical untyped patterns, and some research investigating gradually removing types
    from code exhibiting typical typed patterns. This paper investigates how to extend
    these established gradual-typing concepts to give formal guarantees not only about
    how to change types as code evolves but also about how to change such programming
    patterns as well.\r\n\r\nIn particular, we explore mixing untyped \"structural\"
    code with typed \"nominal\" code in an object-oriented language. But whereas previous
    work only allowed \"nominal\" objects to be treated as \"structural\" objects,
    we also allow \"structural\" objects to dynamically acquire certain nominal types,
    namely interfaces. We present a calculus that supports such \"cross-paradigm\"
    code migration and interoperation in a manner satisfying both the static and dynamic
    gradual guarantees, and demonstrate that the calculus can be implemented efficiently."
acknowledgement: "We thank the reviewers for their valuable suggestions towards improving
  the paper. We also \r\nthank Mae Milano and Adrian Sampson, as well as the members
  of the Programming Languages Discussion Group at Cornell University and of the Programming
  Research Laboratory at Northeastern University, for their helpful feedback on preliminary
  findings of this work.\r\n\r\nThis material is based upon work supported in part
  by the National Science Foundation (NSF) through grant CCF-1350182 and the Austrian
  Science Fund (FWF) through grant Z211-N23 (Wittgenstein~Award).\r\nAny opinions,
  findings, and conclusions or recommendations expressed in this material are those
  of the authors and do not necessarily reflect the views of the NSF or the FWF."
article_number: '127'
article_processing_charge: No
article_type: original
author:
- first_name: Fabian
  full_name: Mühlböck, Fabian
  id: 6395C5F6-89DF-11E9-9C97-6BDFE5697425
  last_name: Mühlböck
  orcid: 0000-0003-1548-0177
- first_name: Ross
  full_name: Tate, Ross
  last_name: Tate
citation:
  ama: Mühlböck F, Tate R. Transitioning from structural to nominal code with efficient
    gradual typing. <i>Proceedings of the ACM on Programming Languages</i>. 2021;5.
    doi:<a href="https://doi.org/10.1145/3485504">10.1145/3485504</a>
  apa: 'Mühlböck, F., &#38; Tate, R. (2021). Transitioning from structural to nominal
    code with efficient gradual typing. <i>Proceedings of the ACM on Programming Languages</i>.
    Chicago, IL, United States: Association for Computing Machinery. <a href="https://doi.org/10.1145/3485504">https://doi.org/10.1145/3485504</a>'
  chicago: Mühlböck, Fabian, and Ross Tate. “Transitioning from Structural to Nominal
    Code with Efficient Gradual Typing.” <i>Proceedings of the ACM on Programming
    Languages</i>. Association for Computing Machinery, 2021. <a href="https://doi.org/10.1145/3485504">https://doi.org/10.1145/3485504</a>.
  ieee: F. Mühlböck and R. Tate, “Transitioning from structural to nominal code with
    efficient gradual typing,” <i>Proceedings of the ACM on Programming Languages</i>,
    vol. 5. Association for Computing Machinery, 2021.
  ista: Mühlböck F, Tate R. 2021. Transitioning from structural to nominal code with
    efficient gradual typing. Proceedings of the ACM on Programming Languages. 5,
    127.
  mla: Mühlböck, Fabian, and Ross Tate. “Transitioning from Structural to Nominal
    Code with Efficient Gradual Typing.” <i>Proceedings of the ACM on Programming
    Languages</i>, vol. 5, 127, Association for Computing Machinery, 2021, doi:<a
    href="https://doi.org/10.1145/3485504">10.1145/3485504</a>.
  short: F. Mühlböck, R. Tate, Proceedings of the ACM on Programming Languages 5 (2021).
conference:
  end_date: 2021-10-23
  location: Chicago, IL, United States
  name: 'OOPSLA: Object-Oriented Programming, Systems, Languages, and Applications'
  start_date: 2021-10-17
date_created: 2021-10-19T12:48:44Z
date_published: 2021-10-15T00:00:00Z
date_updated: 2021-11-12T11:30:07Z
day: '15'
ddc:
- '005'
department:
- _id: ToHe
doi: 10.1145/3485504
file:
- access_level: open_access
  checksum: 71011efd2da771cafdec7f0d9693f8c1
  content_type: application/pdf
  creator: fmuehlbo
  date_created: 2021-10-19T12:52:23Z
  date_updated: 2021-10-19T12:52:23Z
  file_id: '10154'
  file_name: monnom-oopsla21.pdf
  file_size: 770269
  relation: main_file
  success: 1
file_date_updated: 2021-10-19T12:52:23Z
has_accepted_license: '1'
intvolume: '         5'
keyword:
- gradual typing
- gradual guarantee
- nominal
- structural
- call tags
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Proceedings of the ACM on Programming Languages
publication_identifier:
  eissn:
  - 2475-1421
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
status: public
title: Transitioning from structural to nominal code with efficient gradual typing
tmp:
  image: /image/cc_by_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nd/4.0/legalcode
  name: Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)
  short: CC BY-ND (4.0)
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 5
year: '2021'
...
---
_id: '10206'
abstract:
- lang: eng
  text: Neural-network classifiers achieve high accuracy when predicting the class
    of an input that they were trained to identify. Maintaining this accuracy in dynamic
    environments, where inputs frequently fall outside the fixed set of initially
    known classes, remains a challenge. The typical approach is to detect inputs from
    novel classes and retrain the classifier on an augmented dataset. However, not
    only the classifier but also the detection mechanism needs to adapt in order to
    distinguish between newly learned and yet unknown input classes. To address this
    challenge, we introduce an algorithmic framework for active monitoring of a neural
    network. A monitor wrapped in our framework operates in parallel with the neural
    network and interacts with a human user via a series of interpretable labeling
    queries for incremental adaptation. In addition, we propose an adaptive quantitative
    monitor to improve precision. An experimental evaluation on a diverse set of benchmarks
    with varying numbers of classes confirms the benefits of our active monitoring
    framework in dynamic scenarios.
acknowledgement: We thank Christoph Lampert and Alex Greengold for fruitful discussions.
  This research was supported in part by the Simons Institute for the Theory of Computing,
  the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award), and the
  European Union’s Horizon 2020 research and innovation programme under the Marie
  Skłodowska-Curie grant agreement No. 754411.
alternative_title:
- LNCS
article_processing_charge: No
arxiv: 1
author:
- first_name: Anna
  full_name: Lukina, Anna
  id: CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425
  last_name: Lukina
- first_name: Christian
  full_name: Schilling, Christian
  id: 3A2F4DCE-F248-11E8-B48F-1D18A9856A87
  last_name: Schilling
  orcid: 0000-0003-3658-1065
- 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: 'Lukina A, Schilling C, Henzinger TA. Into the unknown: active monitoring of neural
    networks. In: <i>21st International Conference on Runtime Verification</i>. Vol
    12974. Cham: Springer Nature; 2021:42-61. doi:<a href="https://doi.org/10.1007/978-3-030-88494-9_3">10.1007/978-3-030-88494-9_3</a>'
  apa: 'Lukina, A., Schilling, C., &#38; Henzinger, T. A. (2021). Into the unknown:
    active monitoring of neural networks. In <i>21st International Conference on Runtime
    Verification</i> (Vol. 12974, pp. 42–61). Cham: Springer Nature. <a href="https://doi.org/10.1007/978-3-030-88494-9_3">https://doi.org/10.1007/978-3-030-88494-9_3</a>'
  chicago: 'Lukina, Anna, Christian Schilling, and Thomas A Henzinger. “Into the Unknown:
    Active Monitoring of Neural Networks.” In <i>21st International Conference on
    Runtime Verification</i>, 12974:42–61. Cham: Springer Nature, 2021. <a href="https://doi.org/10.1007/978-3-030-88494-9_3">https://doi.org/10.1007/978-3-030-88494-9_3</a>.'
  ieee: 'A. Lukina, C. Schilling, and T. A. Henzinger, “Into the unknown: active monitoring
    of neural networks,” in <i>21st International Conference on Runtime Verification</i>,
    Virtual, 2021, vol. 12974, pp. 42–61.'
  ista: 'Lukina A, Schilling C, Henzinger TA. 2021. Into the unknown: active monitoring
    of neural networks. 21st International Conference on Runtime Verification. RV:
    Runtime Verification, LNCS, vol. 12974, 42–61.'
  mla: 'Lukina, Anna, et al. “Into the Unknown: Active Monitoring of Neural Networks.”
    <i>21st International Conference on Runtime Verification</i>, vol. 12974, Springer
    Nature, 2021, pp. 42–61, doi:<a href="https://doi.org/10.1007/978-3-030-88494-9_3">10.1007/978-3-030-88494-9_3</a>.'
  short: A. Lukina, C. Schilling, T.A. Henzinger, in:, 21st International Conference
    on Runtime Verification, Springer Nature, Cham, 2021, pp. 42–61.
conference:
  end_date: 2021-10-14
  location: Virtual
  name: 'RV: Runtime Verification'
  start_date: 2021-10-11
date_created: 2021-10-31T23:01:31Z
date_published: 2021-10-06T00:00:00Z
date_updated: 2024-01-30T12:06:56Z
day: '06'
department:
- _id: ToHe
doi: 10.1007/978-3-030-88494-9_3
ec_funded: 1
external_id:
  arxiv:
  - '2009.06429'
  isi:
  - '000719383800003'
isi: 1
keyword:
- monitoring
- neural networks
- novelty detection
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2009.06429
month: '10'
oa: 1
oa_version: Preprint
page: 42-61
place: Cham
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: 21st International Conference on Runtime Verification
publication_identifier:
  eisbn:
  - 978-3-030-88494-9
  eissn:
  - 1611-3349
  isbn:
  - 9-783-0308-8493-2
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  record:
  - id: '13234'
    relation: extended_version
    status: public
scopus_import: '1'
status: public
title: 'Into the unknown: active monitoring of neural networks'
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: '12974 '
year: '2021'
...
---
_id: '10404'
abstract:
- lang: eng
  text: While convolutional neural networks (CNNs) have found wide adoption as state-of-the-art
    models for image-related tasks, their predictions are often highly sensitive to
    small input perturbations, which the human vision is robust against. This paper
    presents Perturber, a web-based application that allows users to instantaneously
    explore how CNN activations and predictions evolve when a 3D input scene is interactively
    perturbed. Perturber offers a large variety of scene modifications, such as camera
    controls, lighting and shading effects, background modifications, object morphing,
    as well as adversarial attacks, to facilitate the discovery of potential vulnerabilities.
    Fine-tuned model versions can be directly compared for qualitative evaluation
    of their robustness. Case studies with machine learning experts have shown that
    Perturber helps users to quickly generate hypotheses about model vulnerabilities
    and to qualitatively compare model behavior. Using quantitative analyses, we could
    replicate users’ insights with other CNN architectures and input images, yielding
    new insights about the vulnerability of adversarially trained models.
acknowledgement: "We thank Robert Geirhos and Roland Zimmermann for their participation
  in the case study and valuable feedback, Chris Olah and Nick Cammarata for valuable
  discussions in the early phase of the project, as well as the Distill Slack workspace
  as a platform for discussions. M.L. is supported in part by the Austrian Science
  Fund (FWF) under grant Z211-N23 (Wittgenstein Award). J.B. is supported by the German
  Federal Ministry of Education and Research\r\n(BMBF) through the Competence Center
  for Machine Learning (TUE.AI, FKZ 01IS18039A) and the International Max Planck Research
  School for Intelligent Systems (IMPRS-IS). R.H. is partially supported by Boeing
  and Horizon-2020 ECSEL (grant 783163, iDev40).\r\n"
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Stefan
  full_name: Sietzen, Stefan
  last_name: Sietzen
- first_name: Mathias
  full_name: Lechner, Mathias
  id: 3DC22916-F248-11E8-B48F-1D18A9856A87
  last_name: Lechner
- first_name: Judy
  full_name: Borowski, Judy
  last_name: Borowski
- first_name: Ramin
  full_name: Hasani, Ramin
  last_name: Hasani
- first_name: Manuela
  full_name: Waldner, Manuela
  last_name: Waldner
citation:
  ama: Sietzen S, Lechner M, Borowski J, Hasani R, Waldner M. Interactive analysis
    of CNN robustness. <i>Computer Graphics Forum</i>. 2021;40(7):253-264. doi:<a
    href="https://doi.org/10.1111/cgf.14418">10.1111/cgf.14418</a>
  apa: Sietzen, S., Lechner, M., Borowski, J., Hasani, R., &#38; Waldner, M. (2021).
    Interactive analysis of CNN robustness. <i>Computer Graphics Forum</i>. Wiley.
    <a href="https://doi.org/10.1111/cgf.14418">https://doi.org/10.1111/cgf.14418</a>
  chicago: Sietzen, Stefan, Mathias Lechner, Judy Borowski, Ramin Hasani, and Manuela
    Waldner. “Interactive Analysis of CNN Robustness.” <i>Computer Graphics Forum</i>.
    Wiley, 2021. <a href="https://doi.org/10.1111/cgf.14418">https://doi.org/10.1111/cgf.14418</a>.
  ieee: S. Sietzen, M. Lechner, J. Borowski, R. Hasani, and M. Waldner, “Interactive
    analysis of CNN robustness,” <i>Computer Graphics Forum</i>, vol. 40, no. 7. Wiley,
    pp. 253–264, 2021.
  ista: Sietzen S, Lechner M, Borowski J, Hasani R, Waldner M. 2021. Interactive analysis
    of CNN robustness. Computer Graphics Forum. 40(7), 253–264.
  mla: Sietzen, Stefan, et al. “Interactive Analysis of CNN Robustness.” <i>Computer
    Graphics Forum</i>, vol. 40, no. 7, Wiley, 2021, pp. 253–64, doi:<a href="https://doi.org/10.1111/cgf.14418">10.1111/cgf.14418</a>.
  short: S. Sietzen, M. Lechner, J. Borowski, R. Hasani, M. Waldner, Computer Graphics
    Forum 40 (2021) 253–264.
date_created: 2021-12-05T23:01:40Z
date_published: 2021-11-27T00:00:00Z
date_updated: 2023-08-14T13:11:42Z
day: '27'
department:
- _id: ToHe
doi: 10.1111/cgf.14418
external_id:
  arxiv:
  - '2110.07667'
  isi:
  - '000722952000024'
intvolume: '        40'
isi: 1
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2110.07667
month: '11'
oa: 1
oa_version: Preprint
page: 253-264
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication: Computer Graphics Forum
publication_identifier:
  eissn:
  - 1467-8659
  issn:
  - 0167-7055
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interactive analysis of CNN robustness
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 40
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'
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  - '000765738803040'
has_accepted_license: '1'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/3.0/
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  url: https://arxiv.org/abs/2103.08187
oa: 1
oa_version: None
page: 4140-4147
project:
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  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:
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  isbn:
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  issn:
  - 1050-4729
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quality_controlled: '1'
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series_title: ICRA
status: public
title: Adversarial training is not ready for robot learning
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---
_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'
file:
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  file_id: '10682'
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  relation: main_file
  success: 1
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has_accepted_license: '1'
language:
- iso: eng
main_file_link:
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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'
- _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'
related_material:
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  - id: '11362'
    relation: dissertation_contains
    status: public
status: public
title: Infinite time horizon safety of Bayesian neural networks
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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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  checksum: d30eae62561bb517d9f978437d7677db
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  creator: mlechner
  date_created: 2022-01-26T07:38:32Z
  date_updated: 2022-01-26T07:38:32Z
  file_id: '10681'
  file_name: babaiee21a.pdf
  file_size: 4246561
  relation: main_file
  success: 1
file_date_updated: 2022-01-26T07:38:32Z
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:
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  short: CC BY-NC-ND (3.0)
type: conference
user_id: 2EBD1598-F248-11E8-B48F-1D18A9856A87
volume: 139
year: '2021'
...
