---
_id: '2064'
abstract:
- lang: eng
  text: We examined the synaptic structure, quantity, and distribution of α-amino-3-hydroxy-5-methylisoxazole-4-propionic
    acid (AMPA)- and N-methyl-D-aspartate (NMDA)-type glutamate receptors (AMPARs
    and NMDARs, respectively) in rat cochlear nuclei by a highly sensitive freeze-fracture
    replica labeling technique. Four excitatory synapses formed by two distinct inputs,
    auditory nerve (AN) and parallel fibers (PF), on different cell types were analyzed.
    These excitatory synapse types included AN synapses on bushy cells (AN-BC synapses)
    and fusiform cells (AN-FC synapses) and PF synapses on FC (PF-FC synapses) and
    cartwheel cell spines (PF-CwC synapses). Immunogold labeling revealed differences
    in synaptic structure as well as AMPAR and NMDAR number and/or density in both
    AN and PF synapses, indicating a target-dependent organization. The immunogold
    receptor labeling also identified differences in the synaptic organization of
    FCs based on AN or PF connections, indicating an input-dependent organization
    in FCs. Among the four excitatory synapse types, the AN-BC synapses were the smallest
    and had the most densely packed intramembrane particles (IMPs), whereas the PF-CwC
    synapses were the largest and had sparsely packed IMPs. All four synapse types
    showed positive correlations between the IMP-cluster area and the AMPAR number,
    indicating a common intrasynapse-type relationship for glutamatergic synapses.
    Immunogold particles for AMPARs were distributed over the entire area of individual
    AN synapses; PF synapses often showed synaptic areas devoid of labeling. The gold-labeling
    for NMDARs occurred in a mosaic fashion, with less positive correlations between
    the IMP-cluster area and the NMDAR number. Our observations reveal target- and
    input-dependent features in the structure, number, and organization of AMPARs
    and NMDARs in AN and PF synapses.
acknowledgement: "National Institutes of Health (NIH) Grant Number: 1R01DC013048‐0;
  Biotechnology and Biological Sciences Research Council, UK Grant Number: BB/J015938/1\r\n"
author:
- first_name: Maía
  full_name: Rubio, Maía
  last_name: Rubio
- first_name: Yugo
  full_name: Fukazawa, Yugo
  last_name: Fukazawa
- first_name: Naomi
  full_name: Kamasawa, Naomi
  last_name: Kamasawa
- first_name: Cheryl
  full_name: Clarkson, Cheryl
  last_name: Clarkson
- first_name: Elek
  full_name: Molnár, Elek
  last_name: Molnár
- first_name: Ryuichi
  full_name: Shigemoto, Ryuichi
  id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
  last_name: Shigemoto
  orcid: 0000-0001-8761-9444
citation:
  ama: Rubio M, Fukazawa Y, Kamasawa N, Clarkson C, Molnár E, Shigemoto R. Target-
    and input-dependent organization of AMPA and NMDA receptors in synaptic connections
    of the cochlear nucleus. <i>Journal of Comparative Neurology</i>. 2014;522(18):4023-4042.
    doi:<a href="https://doi.org/10.1002/cne.23654">10.1002/cne.23654</a>
  apa: Rubio, M., Fukazawa, Y., Kamasawa, N., Clarkson, C., Molnár, E., &#38; Shigemoto,
    R. (2014). Target- and input-dependent organization of AMPA and NMDA receptors
    in synaptic connections of the cochlear nucleus. <i>Journal of Comparative Neurology</i>.
    Wiley-Blackwell. <a href="https://doi.org/10.1002/cne.23654">https://doi.org/10.1002/cne.23654</a>
  chicago: Rubio, Maía, Yugo Fukazawa, Naomi Kamasawa, Cheryl Clarkson, Elek Molnár,
    and Ryuichi Shigemoto. “Target- and Input-Dependent Organization of AMPA and NMDA
    Receptors in Synaptic Connections of the Cochlear Nucleus.” <i>Journal of Comparative
    Neurology</i>. Wiley-Blackwell, 2014. <a href="https://doi.org/10.1002/cne.23654">https://doi.org/10.1002/cne.23654</a>.
  ieee: M. Rubio, Y. Fukazawa, N. Kamasawa, C. Clarkson, E. Molnár, and R. Shigemoto,
    “Target- and input-dependent organization of AMPA and NMDA receptors in synaptic
    connections of the cochlear nucleus,” <i>Journal of Comparative Neurology</i>,
    vol. 522, no. 18. Wiley-Blackwell, pp. 4023–4042, 2014.
  ista: Rubio M, Fukazawa Y, Kamasawa N, Clarkson C, Molnár E, Shigemoto R. 2014.
    Target- and input-dependent organization of AMPA and NMDA receptors in synaptic
    connections of the cochlear nucleus. Journal of Comparative Neurology. 522(18),
    4023–4042.
  mla: Rubio, Maía, et al. “Target- and Input-Dependent Organization of AMPA and NMDA
    Receptors in Synaptic Connections of the Cochlear Nucleus.” <i>Journal of Comparative
    Neurology</i>, vol. 522, no. 18, Wiley-Blackwell, 2014, pp. 4023–42, doi:<a href="https://doi.org/10.1002/cne.23654">10.1002/cne.23654</a>.
  short: M. Rubio, Y. Fukazawa, N. Kamasawa, C. Clarkson, E. Molnár, R. Shigemoto,
    Journal of Comparative Neurology 522 (2014) 4023–4042.
date_created: 2018-12-11T11:55:30Z
date_published: 2014-07-29T00:00:00Z
date_updated: 2021-01-12T06:55:05Z
day: '29'
department:
- _id: RySh
doi: 10.1002/cne.23654
intvolume: '       522'
issue: '18'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4198489/
month: '07'
oa: 1
oa_version: Submitted Version
page: 4023 - 4042
publication: Journal of Comparative Neurology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '4974'
quality_controlled: '1'
scopus_import: 1
status: public
title: Target- and input-dependent organization of AMPA and NMDA receptors in synaptic
  connections of the cochlear nucleus
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 522
year: '2014'
...
---
_id: '1375'
abstract:
- lang: eng
  text: 'We consider directed graphs where each edge is labeled with an integer weight
    and study the fundamental algorithmic question of computing the value of a cycle
    with minimum mean weight. Our contributions are twofold: (1) First we show that
    the algorithmic question is reducible to the problem of a logarithmic number of
    min-plus matrix multiplications of n×n-matrices, where n is the number of vertices
    of the graph. (2) Second, when the weights are nonnegative, we present the first
    (1+ε)-approximation algorithm for the problem and the running time of our algorithm
    is Õ(nωlog3(nW/ε)/ε),1 where O(nω) is the time required for the classic n×n-matrix
    multiplication and W is the maximum value of the weights. With an additional O(log(nW/ε))
    factor in space a cycle with approximately optimal weight can be computed within
    the same time bound.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Sebastian
  full_name: Krinninger, Sebastian
  last_name: Krinninger
- first_name: Veronika
  full_name: Loitzenbauer, Veronika
  last_name: Loitzenbauer
- first_name: Michael
  full_name: Raskin, Michael
  last_name: Raskin
citation:
  ama: Chatterjee K, Henzinger MH, Krinninger S, Loitzenbauer V, Raskin M. Approximating
    the minimum cycle mean. <i>Theoretical Computer Science</i>. 2014;547(C):104-116.
    doi:<a href="https://doi.org/10.1016/j.tcs.2014.06.031">10.1016/j.tcs.2014.06.031</a>
  apa: Chatterjee, K., Henzinger, M. H., Krinninger, S., Loitzenbauer, V., &#38; Raskin,
    M. (2014). Approximating the minimum cycle mean. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.tcs.2014.06.031">https://doi.org/10.1016/j.tcs.2014.06.031</a>
  chicago: Chatterjee, Krishnendu, Monika H Henzinger, Sebastian Krinninger, Veronika
    Loitzenbauer, and Michael Raskin. “Approximating the Minimum Cycle Mean.” <i>Theoretical
    Computer Science</i>. Elsevier, 2014. <a href="https://doi.org/10.1016/j.tcs.2014.06.031">https://doi.org/10.1016/j.tcs.2014.06.031</a>.
  ieee: K. Chatterjee, M. H. Henzinger, S. Krinninger, V. Loitzenbauer, and M. Raskin,
    “Approximating the minimum cycle mean,” <i>Theoretical Computer Science</i>, vol.
    547, no. C. Elsevier, pp. 104–116, 2014.
  ista: Chatterjee K, Henzinger MH, Krinninger S, Loitzenbauer V, Raskin M. 2014.
    Approximating the minimum cycle mean. Theoretical Computer Science. 547(C), 104–116.
  mla: Chatterjee, Krishnendu, et al. “Approximating the Minimum Cycle Mean.” <i>Theoretical
    Computer Science</i>, vol. 547, no. C, Elsevier, 2014, pp. 104–16, doi:<a href="https://doi.org/10.1016/j.tcs.2014.06.031">10.1016/j.tcs.2014.06.031</a>.
  short: K. Chatterjee, M.H. Henzinger, S. Krinninger, V. Loitzenbauer, M. Raskin,
    Theoretical Computer Science 547 (2014) 104–116.
date_created: 2018-12-11T11:51:40Z
date_published: 2014-08-28T00:00:00Z
date_updated: 2022-09-09T11:50:58Z
day: '28'
department:
- _id: KrCh
doi: 10.1016/j.tcs.2014.06.031
ec_funded: 1
external_id:
  arxiv:
  - '1307.4473'
intvolume: '       547'
issue: C
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1307.4473
month: '08'
oa: 1
oa_version: Preprint
page: 104 - 116
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11407
  name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication: Theoretical Computer Science
publication_status: published
publisher: Elsevier
publist_id: '5836'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Approximating the minimum cycle mean
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 547
year: '2014'
...
---
_id: '1392'
abstract:
- lang: eng
  text: Fault-tolerant distributed algorithms play an important role in ensuring the
    reliability of many software applications. In this paper we consider distributed
    algorithms whose computations are organized in rounds. To verify the correctness
    of such algorithms, we reason about (i) properties (such as invariants) of the
    state, (ii) the transitions controlled by the algorithm, and (iii) the communication
    graph. We introduce a logic that addresses these points, and contains set comprehensions
    with cardinality constraints, function symbols to describe the local states of
    each process, and a limited form of quantifier alternation to express the verification
    conditions. We show its use in automating the verification of consensus algorithms.
    In particular, we give a semi-decision procedure for the unsatisfiability problem
    of the logic and identify a decidable fragment. We successfully applied our framework
    to verify the correctness of a variety of consensus algorithms tolerant to both
    benign faults (message loss, process crashes) and value faults (message corruption).
acknowledgement: Supported by the Vienna Science and Technology Fund (WWTF) through
  grant PROSEED.
alternative_title:
- LNCS
author:
- first_name: Cezara
  full_name: Dragoi, Cezara
  id: 2B2B5ED0-F248-11E8-B48F-1D18A9856A87
  last_name: Dragoi
- 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: Helmut
  full_name: Veith, Helmut
  last_name: Veith
- first_name: Josef
  full_name: Widder, Josef
  last_name: Widder
- first_name: Damien
  full_name: Zufferey, Damien
  id: 4397AC76-F248-11E8-B48F-1D18A9856A87
  last_name: Zufferey
  orcid: 0000-0002-3197-8736
citation:
  ama: 'Dragoi C, Henzinger TA, Veith H, Widder J, Zufferey D. A logic-based framework
    for verifying consensus algorithms. In: Vol 8318. Springer; 2014:161-181. doi:<a
    href="https://doi.org/10.1007/978-3-642-54013-4_10">10.1007/978-3-642-54013-4_10</a>'
  apa: 'Dragoi, C., Henzinger, T. A., Veith, H., Widder, J., &#38; Zufferey, D. (2014).
    A logic-based framework for verifying consensus algorithms (Vol. 8318, pp. 161–181).
    Presented at the VMCAI: Verification, Model Checking and Abstract Interpretation,
    San Diego, USA: Springer. <a href="https://doi.org/10.1007/978-3-642-54013-4_10">https://doi.org/10.1007/978-3-642-54013-4_10</a>'
  chicago: Dragoi, Cezara, Thomas A Henzinger, Helmut Veith, Josef Widder, and Damien
    Zufferey. “A Logic-Based Framework for Verifying Consensus Algorithms,” 8318:161–81.
    Springer, 2014. <a href="https://doi.org/10.1007/978-3-642-54013-4_10">https://doi.org/10.1007/978-3-642-54013-4_10</a>.
  ieee: 'C. Dragoi, T. A. Henzinger, H. Veith, J. Widder, and D. Zufferey, “A logic-based
    framework for verifying consensus algorithms,” presented at the VMCAI: Verification,
    Model Checking and Abstract Interpretation, San Diego, USA, 2014, vol. 8318, pp.
    161–181.'
  ista: 'Dragoi C, Henzinger TA, Veith H, Widder J, Zufferey D. 2014. A logic-based
    framework for verifying consensus algorithms. VMCAI: Verification, Model Checking
    and Abstract Interpretation, LNCS, vol. 8318, 161–181.'
  mla: Dragoi, Cezara, et al. <i>A Logic-Based Framework for Verifying Consensus Algorithms</i>.
    Vol. 8318, Springer, 2014, pp. 161–81, doi:<a href="https://doi.org/10.1007/978-3-642-54013-4_10">10.1007/978-3-642-54013-4_10</a>.
  short: C. Dragoi, T.A. Henzinger, H. Veith, J. Widder, D. Zufferey, in:, Springer,
    2014, pp. 161–181.
conference:
  end_date: 2014-01-21
  location: San Diego, USA
  name: 'VMCAI: Verification, Model Checking and Abstract Interpretation'
  start_date: 2014-01-19
date_created: 2018-12-11T11:51:45Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T06:50:22Z
day: '01'
ddc:
- '000'
- '005'
department:
- _id: ToHe
doi: 10.1007/978-3-642-54013-4_10
ec_funded: 1
file:
- access_level: open_access
  checksum: bffa33d39be77df0da39defe97eabf84
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:06Z
  date_updated: 2020-07-14T12:44:48Z
  file_id: '4859'
  file_name: IST-2014-179-v1+1_vmcai14.pdf
  file_size: 444138
  relation: main_file
file_date_updated: 2020-07-14T12:44:48Z
has_accepted_license: '1'
intvolume: '      8318'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 161 - 181
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
publication_status: published
publisher: Springer
publist_id: '5817'
pubrep_id: '179'
quality_controlled: '1'
scopus_import: 1
status: public
title: A logic-based framework for verifying consensus algorithms
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8318
year: '2014'
...
---
_id: '1393'
abstract:
- lang: eng
  text: 'Probabilistic programs are usual functional or imperative programs with two
    added constructs: (1) the ability to draw values at random from distributions,
    and (2) the ability to condition values of variables in a program via observations.
    Models from diverse application areas such as computer vision, coding theory,
    cryptographic protocols, biology and reliability analysis can be written as probabilistic
    programs. Probabilistic inference is the problem of computing an explicit representation
    of the probability distribution implicitly specified by a probabilistic program.
    Depending on the application, the desired output from inference may vary-we may
    want to estimate the expected value of some function f with respect to the distribution,
    or the mode of the distribution, or simply a set of samples drawn from the distribution.
    In this paper, we describe connections this research area called \Probabilistic
    Programming&quot; has with programming languages and software engineering, and
    this includes language design, and the static and dynamic analysis of programs.
    We survey current state of the art and speculate on promising directions for future
    research.'
article_processing_charge: No
author:
- first_name: Andrew
  full_name: Gordon, Andrew
  last_name: Gordon
- 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: Aditya
  full_name: Nori, Aditya
  last_name: Nori
- first_name: Sriram
  full_name: Rajamani, Sriram
  last_name: Rajamani
citation:
  ama: 'Gordon A, Henzinger TA, Nori A, Rajamani S. Probabilistic programming. In:
    <i>Proceedings of the on Future of Software Engineering</i>. ACM; 2014:167-181.
    doi:<a href="https://doi.org/10.1145/2593882.2593900">10.1145/2593882.2593900</a>'
  apa: 'Gordon, A., Henzinger, T. A., Nori, A., &#38; Rajamani, S. (2014). Probabilistic
    programming. In <i>Proceedings of the on Future of Software Engineering</i> (pp.
    167–181). Hyderabad, India: ACM. <a href="https://doi.org/10.1145/2593882.2593900">https://doi.org/10.1145/2593882.2593900</a>'
  chicago: Gordon, Andrew, Thomas A Henzinger, Aditya Nori, and Sriram Rajamani. “Probabilistic
    Programming.” In <i>Proceedings of the on Future of Software Engineering</i>,
    167–81. ACM, 2014. <a href="https://doi.org/10.1145/2593882.2593900">https://doi.org/10.1145/2593882.2593900</a>.
  ieee: A. Gordon, T. A. Henzinger, A. Nori, and S. Rajamani, “Probabilistic programming,”
    in <i>Proceedings of the on Future of Software Engineering</i>, Hyderabad, India,
    2014, pp. 167–181.
  ista: 'Gordon A, Henzinger TA, Nori A, Rajamani S. 2014. Probabilistic programming.
    Proceedings of the on Future of Software Engineering. FOSE: Future of Software
    Engineering, 167–181.'
  mla: Gordon, Andrew, et al. “Probabilistic Programming.” <i>Proceedings of the on
    Future of Software Engineering</i>, ACM, 2014, pp. 167–81, doi:<a href="https://doi.org/10.1145/2593882.2593900">10.1145/2593882.2593900</a>.
  short: A. Gordon, T.A. Henzinger, A. Nori, S. Rajamani, in:, Proceedings of the
    on Future of Software Engineering, ACM, 2014, pp. 167–181.
conference:
  end_date: 2014-06-07
  location: Hyderabad, India
  name: 'FOSE: Future of Software Engineering'
  start_date: 2014-05-31
date_created: 2018-12-11T11:51:45Z
date_published: 2014-05-31T00:00:00Z
date_updated: 2021-01-12T06:50:22Z
day: '31'
department:
- _id: ToHe
doi: 10.1145/2593882.2593900
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1145/2593882.2593900
month: '05'
oa: 1
oa_version: Published Version
page: 167 - 181
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
publication: Proceedings of the on Future of Software Engineering
publication_status: published
publisher: ACM
publist_id: '5816'
quality_controlled: '1'
scopus_import: 1
status: public
title: Probabilistic programming
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '1395'
abstract:
- lang: eng
  text: In this thesis I studied various individual and social immune defences employed
    by the invasive garden ant Lasius neglectus mostly against entomopathogenic fungi.  The
    first two chapters of this thesis address the phenomenon of 'social immunisation'.
    Social immunisation, that is the immunological protection of group members due
    to social contact to a pathogen-exposed nestmate, has been described in various
    social insect species against different types of pathogens. However, in the case
    of entomopathogenic fungi it has, so far, only been demonstrated that social immunisation
    exists at all. Its underlying mechanisms r any other properties were, however,
    unknown. In the first chapter of this thesis I identified the mechanistic basis
    of social immunisation in L. neglectus against the entomopathogenous fungus Metarhizium.
    I could show that nestmates of a pathogen-exposed individual contract low-level
    infections due to social interactions. These low-level infections are, however,
    non-lethal and cause an active stimulation of the immune system, which protects
    the nestmates upon subsequent pathogen encounters. In the second chapter of this
    thesis I investigated the specificity and colony level effects of social immunisation.
    I demonstrated that the protection conferred by social immunisation is highly
    specific, protecting ants only against the same pathogen strain. In addition,
    depending on the respective context, social immunisation may even cause fitness
    costs. I further showed that social immunisation crucially affects sanitary behaviour
    and disease dynamics within ant groups. In the third chapter of this thesis I
    studied the effects of the ectosymbiotic fungus Laboulbenia formicarum on its
    host L. neglectus. Although Laboulbeniales are the largest order of insect-parasitic
    fungi, research concerning host fitness consequence is sparse. I showed that highly
    Laboulbenia-infected ants sustain fitness costs under resource limitation, however,
    gain fitness benefits when exposed to an entomopathogenus fungus. These effects
    are probably cause by a prophylactic upregulation of behavioural as well as physiological
    immune defences in highly infected ants.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Matthias
  full_name: Konrad, Matthias
  id: 46528076-F248-11E8-B48F-1D18A9856A87
  last_name: Konrad
citation:
  ama: 'Konrad M. Immune defences in ants: Effects of social immunisation and a fungal
    ectosymbiont in the ant Lasius neglectus. 2014.'
  apa: 'Konrad, M. (2014). <i>Immune defences in ants: Effects of social immunisation
    and a fungal ectosymbiont in the ant Lasius neglectus</i>. Institute of Science
    and Technology Austria.'
  chicago: 'Konrad, Matthias. “Immune Defences in Ants: Effects of Social Immunisation
    and a Fungal Ectosymbiont in the Ant Lasius Neglectus.” Institute of Science and
    Technology Austria, 2014.'
  ieee: 'M. Konrad, “Immune defences in ants: Effects of social immunisation and a
    fungal ectosymbiont in the ant Lasius neglectus,” Institute of Science and Technology
    Austria, 2014.'
  ista: 'Konrad M. 2014. Immune defences in ants: Effects of social immunisation and
    a fungal ectosymbiont in the ant Lasius neglectus. Institute of Science and Technology
    Austria.'
  mla: 'Konrad, Matthias. <i>Immune Defences in Ants: Effects of Social Immunisation
    and a Fungal Ectosymbiont in the Ant Lasius Neglectus</i>. Institute of Science
    and Technology Austria, 2014.'
  short: 'M. Konrad, Immune Defences in Ants: Effects of Social Immunisation and a
    Fungal Ectosymbiont in the Ant Lasius Neglectus, Institute of Science and Technology
    Austria, 2014.'
date_created: 2018-12-11T11:51:46Z
date_published: 2014-02-01T00:00:00Z
date_updated: 2023-09-07T11:38:56Z
day: '01'
degree_awarded: PhD
department:
- _id: SyCr
language:
- iso: eng
month: '02'
oa_version: None
page: '131'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '5814'
status: public
supervisor:
- first_name: Sylvia M
  full_name: Cremer, Sylvia M
  id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
  last_name: Cremer
  orcid: 0000-0002-2193-3868
title: 'Immune defences in ants: Effects of social immunisation and a fungal ectosymbiont
  in the ant Lasius neglectus'
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2014'
...
---
_id: '1402'
abstract:
- lang: eng
  text: Phosphatidylinositol (Ptdlns) is a structural phospholipid that can be phosphorylated
    into various lipid signaling molecules, designated polyphosphoinositides (PPIs).
    The reversible phosphorylation of PPIs on the 3, 4, or 5 position of inositol
    is performed by a set of organelle-specific kinases and phosphatases, and the
    characteristic head groups make these molecules ideal for regulating biological
    processes in time and space. In yeast and mammals, Ptdlns3P and Ptdlns(3,5)P2
    play crucial roles in trafficking toward the lytic compartments, whereas the role
    in plants is not yet fully understood. Here we identified the role of a land plant-specific
    subgroup of PPI phosphatases, the suppressor of actin 2 (SAC2) to SAC5, during
    vauolar trafficking and morphogenesis in Arabidopsis thaliana. SAC2-SAC5 localize
    to the tonoplast along with Ptdlns3P, the presumable product of their activity.
    in SAC gain- and loss-of-function mutants, the levels of Ptdlns monophosphates
    and bisphosphates were changed, with opposite effects on the morphology of storage
    and lytic vacuoles, and the trafficking toward the vacuoles was defective. Moreover,
    multiple sac knockout mutants had an increased number of smaller storage and lytic
    vacuoles, whereas extralarge vacuoles were observed in the overexpression lines,
    correlating with various growth and developmental defects. The fragmented vacuolar
    phenotype of sac mutants could be mimicked by treating wild-type seedlings with
    Ptdlns(3,5)P2, corroborating that this PPI is important for vacuole morphology.
    Taken together, these results provide evidence that PPIs, together with their
    metabolic enzymes SAC2-SAC5, are crucial for vacuolar trafficking and for vacuolar
    morphology and function in plants.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Petra
  full_name: Marhavá, Petra
  id: 44E59624-F248-11E8-B48F-1D18A9856A87
  last_name: Marhavá
citation:
  ama: Marhavá P. Molecular mechanisms of patterning and subcellular trafficking in
    Arabidopsis thaliana. 2014.
  apa: Marhavá, P. (2014). <i>Molecular mechanisms of patterning and subcellular trafficking
    in Arabidopsis thaliana</i>. Institute of Science and Technology Austria.
  chicago: Marhavá, Petra. “Molecular Mechanisms of Patterning and Subcellular Trafficking
    in Arabidopsis Thaliana.” Institute of Science and Technology Austria, 2014.
  ieee: P. Marhavá, “Molecular mechanisms of patterning and subcellular trafficking
    in Arabidopsis thaliana,” Institute of Science and Technology Austria, 2014.
  ista: Marhavá P. 2014. Molecular mechanisms of patterning and subcellular trafficking
    in Arabidopsis thaliana. Institute of Science and Technology Austria.
  mla: Marhavá, Petra. <i>Molecular Mechanisms of Patterning and Subcellular Trafficking
    in Arabidopsis Thaliana</i>. Institute of Science and Technology Austria, 2014.
  short: P. Marhavá, Molecular Mechanisms of Patterning and Subcellular Trafficking
    in Arabidopsis Thaliana, Institute of Science and Technology Austria, 2014.
date_created: 2018-12-11T11:51:49Z
date_published: 2014-12-01T00:00:00Z
date_updated: 2023-09-07T11:39:38Z
day: '01'
degree_awarded: PhD
department:
- _id: JiFr
language:
- iso: eng
month: '12'
oa_version: None
page: '90'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '5805'
status: public
supervisor:
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
title: Molecular mechanisms of patterning and subcellular trafficking in Arabidopsis
  thaliana
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2014'
...
---
_id: '1403'
abstract:
- lang: eng
  text: A variety of developmental and disease related processes depend on epithelial
    cell sheet spreading. In order to gain insight into the biophysical mechanism(s)
    underlying the tissue morphogenesis we studied the spreading of an epithelium
    during the early development of the zebrafish embryo. In zebrafish epiboly the
    enveloping cell layer (EVL), a simple squamous epithelium, spreads over the yolk
    cell to completely engulf it at the end of gastrulation. Previous studies have
    proposed that an actomyosin ring forming within the yolk syncytial layer (YSL)
    acts as purse string that through constriction along its circumference pulls on
    the margin of the EVL. Direct biophysical evidence for this hypothesis has however
    been missing. The aim of the thesis was to understand how the actomyosin ring
    may generate pulling forces onto the EVL and what cellular mechanism(s) may facilitate
    the spreading of the epithelium. Using laser ablation to measure cortical tension
    within the actomyosin ring we found an anisotropic tension distribution, which
    was highest along the circumference of the ring. However the low degree of anisotropy
    was incompatible with the actomyosin ring functioning as a purse string only.
    Additionally, we observed retrograde cortical flow from vegetal parts of the ring
    into the EVL margin. Interpreting the experimental data using a theoretical distribution
    that models  the tissues as active viscous gels led us to proposen that the actomyosin
    ring has a twofold contribution to EVL epiboly. It not only acts as a purse string
    through constriction along its circumference, but in addition constriction along
    the width of the ring generates pulling forces through friction-resisted cortical
    flow. Moreover, when rendering the purse string mechanism unproductive EVL epiboly
    proceeded normally indicating that the flow-friction mechanism is sufficient to
    drive the process. Aiming to understand what cellular mechanism(s) may facilitate
    the spreading of the epithelium we found that tension-oriented EVL cell divisions
    limit tissue anisotropy by releasing tension along the division axis and promote
    epithelial spreading. Notably, EVL cells undergo ectopic cell fusion in conditions
    in which oriented-cell division is impaired or the epithelium is mechanically
    challenged. Taken together our study of EVL epiboly suggests a novel mechanism
    of force generation for actomyosin rings through friction-resisted cortical flow
    and highlights the importance of tension-oriented cell divisions in epithelial
    morphogenesis.
acknowledged_ssus:
- _id: SSU
alternative_title:
- IST Austria Thesis
author:
- first_name: Martin
  full_name: Behrndt, Martin
  id: 3ECECA3A-F248-11E8-B48F-1D18A9856A87
  last_name: Behrndt
citation:
  ama: Behrndt M. Forces driving epithelial spreading in zebrafish epiboly. 2014.
  apa: Behrndt, M. (2014). <i>Forces driving epithelial spreading in zebrafish epiboly</i>.
    IST Austria.
  chicago: Behrndt, Martin. “Forces Driving Epithelial Spreading in Zebrafish Epiboly.”
    IST Austria, 2014.
  ieee: M. Behrndt, “Forces driving epithelial spreading in zebrafish epiboly,” IST
    Austria, 2014.
  ista: Behrndt M. 2014. Forces driving epithelial spreading in zebrafish epiboly.
    IST Austria.
  mla: Behrndt, Martin. <i>Forces Driving Epithelial Spreading in Zebrafish Epiboly</i>.
    IST Austria, 2014.
  short: M. Behrndt, Forces Driving Epithelial Spreading in Zebrafish Epiboly, IST
    Austria, 2014.
date_created: 2018-12-11T11:51:49Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2023-10-17T12:16:58Z
day: '01'
department:
- _id: CaHe
language:
- iso: eng
month: '08'
oa_version: None
page: '91'
publication_status: published
publisher: IST Austria
publist_id: '5804'
related_material:
  record:
  - id: '2282'
    relation: part_of_dissertation
    status: public
  - id: '2950'
    relation: part_of_dissertation
    status: public
  - id: '3373'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
title: Forces driving epithelial spreading in zebrafish epiboly
type: dissertation
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '1404'
abstract:
- lang: eng
  text: "The co-evolution of hosts and pathogens is characterized by continuous adaptations
    of both parties. Pathogens of social insects need to adapt towards disease defences
    at two levels: 1) individual immunity of each colony member consisting of behavioural
    defence strategies as well as humoral and cellular immune responses and 2) social
    immunity that is collectively performed by all group members comprising behavioural,
    physiological and organisational defence strategies.\r\n\r\nTo disentangle the
    selection pressure on pathogens by the collective versus individual level of disease
    defence in social insects, we performed an evolution experiment using the Argentine
    Ant, Linepithema humile, as a host and a mixture of the general insect pathogenic
    fungus Metarhizium spp. (6 strains) as a pathogen. We allowed pathogen evolution
    over 10 serial host passages to two different evolution host treatments: (1) only
    individual host immunity in a single host treatment, and (2) simultaneously acting
    individual and social immunity in a social host treatment, in which an exposed
    ant was accompanied by two untreated nestmates.\r\n\r\nBefore starting the pathogen
    evolution experiment, the 6 Metarhizium spp. strains were characterised concerning
    conidiospore size killing rates in singly and socially reared ants, their competitiveness
    under coinfecting conditions and their influence on ant behaviour. We analysed
    how the ancestral atrain mixture changed in conidiospere size, killing rate and
    strain composition dependent on host treatment (single or social hosts) during
    10 passages and found that killing rate and conidiospere size of the pathogen
    increased under both evolution regimes, but different depending on host treatment.\r\n\r\nTesting
    the evolved strain mixtures that evolved under either the single or social host
    treatment under both single and social current rearing conditions in a full factorial
    design experiment revealed that the additional collective defences in insect societies
    add new selection pressure for their coevolving pathogens that compromise their
    ability to adapt to its host at the group level. To our knowledge, this is the
    first study directly measuring the influence of social immunity on pathogen evolution."
acknowledgement: This work was funded by the DFG and the ERC.
alternative_title:
- IST Austria Thesis
author:
- first_name: Miriam
  full_name: Stock, Miriam
  id: 42462816-F248-11E8-B48F-1D18A9856A87
  last_name: Stock
citation:
  ama: Stock M. Evolution of a fungal pathogen towards individual versus social immunity
    in ants. 2014.
  apa: Stock, M. (2014). <i>Evolution of a fungal pathogen towards individual versus
    social immunity in ants</i>. IST Austria.
  chicago: Stock, Miriam. “Evolution of a Fungal Pathogen towards Individual versus
    Social Immunity in Ants.” IST Austria, 2014.
  ieee: M. Stock, “Evolution of a fungal pathogen towards individual versus social
    immunity in ants,” IST Austria, 2014.
  ista: Stock M. 2014. Evolution of a fungal pathogen towards individual versus social
    immunity in ants. IST Austria.
  mla: Stock, Miriam. <i>Evolution of a Fungal Pathogen towards Individual versus
    Social Immunity in Ants</i>. IST Austria, 2014.
  short: M. Stock, Evolution of a Fungal Pathogen towards Individual versus Social
    Immunity in Ants, IST Austria, 2014.
date_created: 2018-12-11T11:51:49Z
date_published: 2014-04-01T00:00:00Z
date_updated: 2021-01-12T06:50:30Z
day: '01'
department:
- _id: SyCr
language:
- iso: eng
month: '04'
oa_version: None
page: '101'
publication_status: published
publisher: IST Austria
publist_id: '5803'
status: public
supervisor:
- first_name: Sylvia M
  full_name: Cremer, Sylvia M
  id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
  last_name: Cremer
  orcid: 0000-0002-2193-3868
title: Evolution of a fungal pathogen towards individual versus social immunity in
  ants
type: dissertation
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5411'
abstract:
- lang: eng
  text: "Model-based testing is a promising technology for black-box software and
    hardware testing, in which test cases are generated automatically from high-level
    specifications. Nowadays, systems typically consist of multiple interacting components
    and, due to their complexity, testing presents a considerable portion of the effort
    and cost in the design process. Exploiting the compositional structure of system
    specifications can considerably reduce the effort in model-based testing. Moreover,
    inferring properties about the system from testing its individual components allows
    the designer to reduce the amount of integration testing.\r\nIn this paper, we
    study compositional properties of the IOCO-testing theory. We propose a new approach
    to composition and hiding operations, inspired by contract-based design and interface
    theories. These operations preserve behaviors that are compatible under composition
    and hiding, and prune away incompatible ones. The resulting specification characterizes
    the input sequences for which the unit testing of components is sufficient to
    infer the correctness of component integration without the need for further tests.
    We provide a methodology that uses these results to minimize integration testing
    effort, but also to detect potential weaknesses in specifications. While we focus
    on asynchronous models and the IOCO conformance relation, the resulting methodology
    can be applied to a broader class of systems."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Przemyslaw
  full_name: Daca, Przemyslaw
  id: 49351290-F248-11E8-B48F-1D18A9856A87
  last_name: Daca
- 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: Willibald
  full_name: Krenn, Willibald
  last_name: Krenn
- first_name: Dejan
  full_name: Nickovic, Dejan
  id: 41BCEE5C-F248-11E8-B48F-1D18A9856A87
  last_name: Nickovic
citation:
  ama: Daca P, Henzinger TA, Krenn W, Nickovic D. <i>Compositional Specifications
    for IOCO Testing</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-148-v2-1">10.15479/AT:IST-2014-148-v2-1</a>
  apa: Daca, P., Henzinger, T. A., Krenn, W., &#38; Nickovic, D. (2014). <i>Compositional
    specifications for IOCO testing</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-148-v2-1">https://doi.org/10.15479/AT:IST-2014-148-v2-1</a>
  chicago: Daca, Przemyslaw, Thomas A Henzinger, Willibald Krenn, and Dejan Nickovic.
    <i>Compositional Specifications for IOCO Testing</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-148-v2-1">https://doi.org/10.15479/AT:IST-2014-148-v2-1</a>.
  ieee: P. Daca, T. A. Henzinger, W. Krenn, and D. Nickovic, <i>Compositional specifications
    for IOCO testing</i>. IST Austria, 2014.
  ista: Daca P, Henzinger TA, Krenn W, Nickovic D. 2014. Compositional specifications
    for IOCO testing, IST Austria, 20p.
  mla: Daca, Przemyslaw, et al. <i>Compositional Specifications for IOCO Testing</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-148-v2-1">10.15479/AT:IST-2014-148-v2-1</a>.
  short: P. Daca, T.A. Henzinger, W. Krenn, D. Nickovic, Compositional Specifications
    for IOCO Testing, IST Austria, 2014.
date_created: 2018-12-12T11:39:11Z
date_published: 2014-01-28T00:00:00Z
date_updated: 2023-02-23T10:31:07Z
day: '28'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2014-148-v2-1
file:
- access_level: open_access
  checksum: 0e03aba625cc334141a3148432aa5760
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:21Z
  date_updated: 2020-07-14T12:46:46Z
  file_id: '5543'
  file_name: IST-2014-148-v2+1_main_tr.pdf
  file_size: 534732
  relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '152'
related_material:
  record:
  - id: '2167'
    relation: later_version
    status: public
status: public
title: Compositional specifications for IOCO testing
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5412'
abstract:
- lang: eng
  text: "We consider Markov decision processes (MDPs) which are a standard model for
    probabilistic systems. We focus on qualitative properties for MDPs that can express
    that desired behaviors of the system arise almost-surely (with probability 1)
    or with positive probability.\r\nWe introduce a new simulation relation to capture
    the refinement relation of MDPs with respect to qualitative properties, and present
    discrete graph theoretic algorithms with quadratic complexity to compute the simulation
    relation.\r\nWe present an automated technique for assume-guarantee style reasoning
    for compositional analysis of MDPs with qualitative properties by giving a counter-example
    guided abstraction-refinement approach to compute our new simulation relation.
    We have implemented our algorithms and show that the compositional analysis leads
    to significant improvements. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Przemyslaw
  full_name: Daca, Przemyslaw
  id: 49351290-F248-11E8-B48F-1D18A9856A87
  last_name: Daca
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
citation:
  ama: Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v1-1">10.15479/AT:IST-2014-153-v1-1</a>
  apa: Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative
    analysis of probabilistic systems</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-153-v1-1">https://doi.org/10.15479/AT:IST-2014-153-v1-1</a>
  chicago: Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for
    Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-153-v1-1">https://doi.org/10.15479/AT:IST-2014-153-v1-1</a>.
  ieee: K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis
    of probabilistic systems</i>. IST Austria, 2014.
  ista: Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic
    systems, IST Austria, 31p.
  mla: Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v1-1">10.15479/AT:IST-2014-153-v1-1</a>.
  short: K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic
    Systems, IST Austria, 2014.
date_created: 2018-12-12T11:39:11Z
date_published: 2014-01-29T00:00:00Z
date_updated: 2023-02-23T12:25:18Z
day: '29'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-153-v1-1
file:
- access_level: open_access
  checksum: 4d6cda4bebed970926403ad6ad8c745f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:39Z
  date_updated: 2020-07-14T12:46:47Z
  file_id: '5500'
  file_name: IST-2014-153-v1+1_main.pdf
  file_size: 423322
  relation: main_file
file_date_updated: 2020-07-14T12:46:47Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: '31'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '153'
related_material:
  record:
  - id: '2063'
    relation: later_version
    status: public
  - id: '5413'
    relation: later_version
    status: public
  - id: '5414'
    relation: later_version
    status: public
status: public
title: CEGAR for qualitative analysis of probabilistic systems
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5413'
abstract:
- lang: eng
  text: "We consider Markov decision processes (MDPs) which are a standard model for
    probabilistic systems. We focus on qualitative properties for MDPs that can express
    that desired behaviors of the system arise almost-surely (with probability 1)
    or with positive probability.\r\nWe introduce a new simulation relation to capture
    the refinement relation of MDPs with respect to qualitative properties, and present
    discrete graph theoretic algorithms with quadratic complexity to compute the simulation
    relation.\r\nWe present an automated technique for assume-guarantee style reasoning
    for compositional analysis of MDPs with qualitative properties by giving a counter-example
    guided abstraction-refinement approach to compute our new simulation relation.
    We have implemented our algorithms and show that the compositional analysis leads
    to significant improvements. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Przemyslaw
  full_name: Daca, Przemyslaw
  id: 49351290-F248-11E8-B48F-1D18A9856A87
  last_name: Daca
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
citation:
  ama: Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">10.15479/AT:IST-2014-153-v2-2</a>
  apa: Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative
    analysis of probabilistic systems</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">https://doi.org/10.15479/AT:IST-2014-153-v2-2</a>
  chicago: Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for
    Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">https://doi.org/10.15479/AT:IST-2014-153-v2-2</a>.
  ieee: K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis
    of probabilistic systems</i>. IST Austria, 2014.
  ista: Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic
    systems, IST Austria, 33p.
  mla: Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">10.15479/AT:IST-2014-153-v2-2</a>.
  short: K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic
    Systems, IST Austria, 2014.
date_created: 2018-12-12T11:39:11Z
date_published: 2014-02-06T00:00:00Z
date_updated: 2023-02-23T12:25:18Z
day: '06'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-153-v2-2
file:
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  checksum: ce4967a184d84863eec76c66cbac1614
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file_date_updated: 2020-07-14T12:46:47Z
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language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '33'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '164'
related_material:
  record:
  - id: '2063'
    relation: later_version
    status: public
  - id: '5412'
    relation: earlier_version
    status: public
  - id: '5414'
    relation: later_version
    status: public
status: public
title: CEGAR for qualitative analysis of probabilistic systems
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5414'
abstract:
- lang: eng
  text: "We consider Markov decision processes (MDPs) which are a standard model for
    probabilistic systems. We focus on qualitative properties for MDPs that can express
    that desired behaviors of the system arise almost-surely (with probability 1)
    or with positive probability.\r\nWe introduce a new simulation relation to capture
    the refinement relation of MDPs with respect to qualitative properties, and present
    discrete graph theoretic algorithms with quadratic complexity to compute the simulation
    relation.\r\nWe present an automated technique for assume-guarantee style reasoning
    for compositional analysis of MDPs with qualitative properties by giving a counter-example
    guided abstraction-refinement approach to compute our new simulation relation.
    \r\nWe have implemented our algorithms and show that the compositional analysis
    leads to significant improvements. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Przemyslaw
  full_name: Daca, Przemyslaw
  id: 49351290-F248-11E8-B48F-1D18A9856A87
  last_name: Daca
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
citation:
  ama: Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">10.15479/AT:IST-2014-153-v3-1</a>
  apa: Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative
    analysis of probabilistic systems</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">https://doi.org/10.15479/AT:IST-2014-153-v3-1</a>
  chicago: Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for
    Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">https://doi.org/10.15479/AT:IST-2014-153-v3-1</a>.
  ieee: K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis
    of probabilistic systems</i>. IST Austria, 2014.
  ista: Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic
    systems, IST Austria, 33p.
  mla: Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">10.15479/AT:IST-2014-153-v3-1</a>.
  short: K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic
    Systems, IST Austria, 2014.
date_created: 2018-12-12T11:39:12Z
date_published: 2014-02-07T00:00:00Z
date_updated: 2023-02-23T12:25:15Z
day: '07'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-153-v3-1
file:
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  checksum: 87b93fe9af71fc5c94b0eb6151537e11
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:03Z
  date_updated: 2020-07-14T12:46:48Z
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  file_size: 606227
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file_date_updated: 2020-07-14T12:46:48Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '33'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '165'
related_material:
  record:
  - id: '2063'
    relation: later_version
    status: public
  - id: '5412'
    relation: earlier_version
    status: public
  - id: '5413'
    relation: earlier_version
    status: public
status: public
title: CEGAR for qualitative analysis of probabilistic systems
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5415'
abstract:
- lang: eng
  text: 'Recently there has been a significant effort to add quantitative properties
    in formal verification and synthesis. While weighted automata over finite and
    infinite words provide a natural and flexible framework to express quantitative
    properties, perhaps surprisingly, several basic system properties such as average
    response time cannot be expressed with weighted automata. In this work, we introduce
    nested weighted automata as a new formalism for expressing important quantitative
    properties such as average response time. We establish an almost complete decidability
    picture for the basic decision problems for nested weighted automata, and illustrate
    its applicability in several domains.  '
alternative_title:
- IST Austria Technical Report
author:
- 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
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
citation:
  ama: Chatterjee K, Henzinger TA, Otop J. <i>Nested Weighted Automata</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">10.15479/AT:IST-2014-170-v1-1</a>
  apa: Chatterjee, K., Henzinger, T. A., &#38; Otop, J. (2014). <i>Nested weighted
    automata</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">https://doi.org/10.15479/AT:IST-2014-170-v1-1</a>
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. <i>Nested Weighted
    Automata</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">https://doi.org/10.15479/AT:IST-2014-170-v1-1</a>.
  ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, <i>Nested weighted automata</i>.
    IST Austria, 2014.
  ista: Chatterjee K, Henzinger TA, Otop J. 2014. Nested weighted automata, IST Austria,
    27p.
  mla: Chatterjee, Krishnendu, et al. <i>Nested Weighted Automata</i>. IST Austria,
    2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">10.15479/AT:IST-2014-170-v1-1</a>.
  short: K. Chatterjee, T.A. Henzinger, J. Otop, Nested Weighted Automata, IST Austria,
    2014.
date_created: 2018-12-12T11:39:12Z
date_published: 2014-02-19T00:00:00Z
date_updated: 2023-02-23T12:26:19Z
day: '19'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2014-170-v1-1
file:
- access_level: open_access
  checksum: 31f90dcf2cf899c3f8c6427cfcc2b3c7
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:36Z
  date_updated: 2020-07-14T12:46:48Z
  file_id: '5497'
  file_name: IST-2014-170-v1+1_main.pdf
  file_size: 573457
  relation: main_file
file_date_updated: 2020-07-14T12:46:48Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '27'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '170'
related_material:
  record:
  - id: '1656'
    relation: later_version
    status: public
  - id: '467'
    relation: later_version
    status: public
  - id: '5436'
    relation: later_version
    status: public
status: public
title: Nested weighted automata
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5416'
abstract:
- lang: eng
  text: As hybrid systems involve continuous behaviors, they should be evaluated by
    quantitative methods, rather than qualitative methods. In this paper we adapt
    a quantitative framework, called model measuring, to the hybrid systems domain.
    The model-measuring problem asks, given a model M and a specification, what is
    the maximal distance such that all models within that distance from M satisfy
    (or violate) the specification. A distance function on models is given as part
    of the input of the problem. Distances, especially related to continuous behaviors
    are more natural in the hybrid case than the discrete case. We are interested
    in distances represented by monotonic hybrid automata, a hybrid counterpart of
    (discrete) weighted automata, whose recognized timed languages are monotone (w.r.t.
    inclusion) in the values of parameters.The contributions of this paper are twofold.
    First, we give sufficient conditions under which the model-measuring problem can
    be solved. Second, we discuss the modeling of distances and applications of the
    model-measuring problem.
alternative_title:
- IST Austria Technical Report
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: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
citation:
  ama: Henzinger TA, Otop J. <i>Model Measuring for Hybrid Systems</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">10.15479/AT:IST-2014-171-v1-1</a>
  apa: Henzinger, T. A., &#38; Otop, J. (2014). <i>Model measuring for hybrid systems</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">https://doi.org/10.15479/AT:IST-2014-171-v1-1</a>
  chicago: Henzinger, Thomas A, and Jan Otop. <i>Model Measuring for Hybrid Systems</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">https://doi.org/10.15479/AT:IST-2014-171-v1-1</a>.
  ieee: T. A. Henzinger and J. Otop, <i>Model measuring for hybrid systems</i>. IST
    Austria, 2014.
  ista: Henzinger TA, Otop J. 2014. Model measuring for hybrid systems, IST Austria,
    22p.
  mla: Henzinger, Thomas A., and Jan Otop. <i>Model Measuring for Hybrid Systems</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">10.15479/AT:IST-2014-171-v1-1</a>.
  short: T.A. Henzinger, J. Otop, Model Measuring for Hybrid Systems, IST Austria,
    2014.
date_created: 2018-12-12T11:39:12Z
date_published: 2014-02-19T00:00:00Z
date_updated: 2023-02-23T10:33:21Z
day: '19'
ddc:
- '005'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2014-171-v1-1
file:
- access_level: open_access
  checksum: 445456d22371e4e49aad2b9a0c13bf80
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:32Z
  date_updated: 2020-07-14T12:46:49Z
  file_id: '5492'
  file_name: IST-2014-171-v1+1_report.pdf
  file_size: 712077
  relation: main_file
file_date_updated: 2020-07-14T12:46:49Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '22'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '171'
related_material:
  record:
  - id: '2217'
    relation: later_version
    status: public
status: public
title: Model measuring for hybrid systems
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5417'
abstract:
- lang: eng
  text: "We define the model-measuring problem: given a model M and specification
    φ, what is the maximal distance ρ such that all models M'within distance ρ from
    M satisfy (or violate)φ. The model measuring problem presupposes a distance function
    on models. We concentrate on automatic distance functions, which are defined by
    weighted automata.\r\nThe model-measuring problem subsumes several generalizations
    of the classical model-checking problem, in particular, quantitative model-checking
    problems that measure the degree of satisfaction of a specification, and robustness
    problems that measure how much a model can be perturbed without violating the
    specification.\r\nWe show that for automatic distance functions, and ω-regular
    linear-time and branching-time specifications, the model-measuring problem can
    be solved.\r\nWe use automata-theoretic model-checking methods for model measuring,
    replacing the emptiness question for standard word and tree automata by the optimal-weight
    question for the weighted versions of these automata. We consider weighted automata
    that accumulate weights by maximizing, summing, discounting, and limit averaging.
    \r\nWe give several examples of using the model-measuring problem to compute various
    notions of robustness and quantitative satisfaction for temporal specifications."
alternative_title:
- IST Austria Technical Report
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: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
citation:
  ama: Henzinger TA, Otop J. <i>From Model Checking to Model Measuring</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">10.15479/AT:IST-2014-172-v1-1</a>
  apa: Henzinger, T. A., &#38; Otop, J. (2014). <i>From model checking to model measuring</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">https://doi.org/10.15479/AT:IST-2014-172-v1-1</a>
  chicago: Henzinger, Thomas A, and Jan Otop. <i>From Model Checking to Model Measuring</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">https://doi.org/10.15479/AT:IST-2014-172-v1-1</a>.
  ieee: T. A. Henzinger and J. Otop, <i>From model checking to model measuring</i>.
    IST Austria, 2014.
  ista: Henzinger TA, Otop J. 2014. From model checking to model measuring, IST Austria,
    14p.
  mla: Henzinger, Thomas A., and Jan Otop. <i>From Model Checking to Model Measuring</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">10.15479/AT:IST-2014-172-v1-1</a>.
  short: T.A. Henzinger, J. Otop, From Model Checking to Model Measuring, IST Austria,
    2014.
date_created: 2018-12-12T11:39:13Z
date_published: 2014-02-19T00:00:00Z
date_updated: 2023-02-23T10:38:10Z
day: '19'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2014-172-v1-1
file:
- access_level: open_access
  checksum: fcc3eab903cfcd3778b338d2d0d44d18
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:20Z
  date_updated: 2020-07-14T12:46:49Z
  file_id: '5481'
  file_name: IST-2014-172-v1+1_report.pdf
  file_size: 383052
  relation: main_file
file_date_updated: 2020-07-14T12:46:49Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '14'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '175'
related_material:
  record:
  - id: '2327'
    relation: later_version
    status: public
status: public
title: From model checking to model measuring
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5418'
abstract:
- lang: eng
  text: We consider multi-player graph games with partial-observation and parity objective.
    While the decision problem for three-player games with a coalition of the first
    and second players against the third player is undecidable, we present a decidability
    result for partial-observation games where the first and third player are in a
    coalition against the second player, thus where the second player is adversarial
    but weaker due to partial-observation. We establish tight complexity bounds in
    the case where player 1 is less informed than player 2, namely 2-EXPTIME-completeness
    for parity objectives. The symmetric case of player 1 more informed than player
    2 is much more complicated, and we show that already in the case where player
    1 has perfect observation, memory of size non-elementary is necessary in general
    for reachability objectives, and the problem is decidable for safety and reachability
    objectives. Our results have tight connections with partial-observation stochastic
    games for which we derive new complexity results.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
citation:
  ama: Chatterjee K, Doyen L. <i>Games with a Weak Adversary</i>. IST Austria; 2014.
    doi:<a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">10.15479/AT:IST-2014-176-v1-1</a>
  apa: Chatterjee, K., &#38; Doyen, L. (2014). <i>Games with a weak adversary</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">https://doi.org/10.15479/AT:IST-2014-176-v1-1</a>
  chicago: Chatterjee, Krishnendu, and Laurent Doyen. <i>Games with a Weak Adversary</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">https://doi.org/10.15479/AT:IST-2014-176-v1-1</a>.
  ieee: K. Chatterjee and L. Doyen, <i>Games with a weak adversary</i>. IST Austria,
    2014.
  ista: Chatterjee K, Doyen L. 2014. Games with a weak adversary, IST Austria, 18p.
  mla: Chatterjee, Krishnendu, and Laurent Doyen. <i>Games with a Weak Adversary</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">10.15479/AT:IST-2014-176-v1-1</a>.
  short: K. Chatterjee, L. Doyen, Games with a Weak Adversary, IST Austria, 2014.
date_created: 2018-12-12T11:39:13Z
date_published: 2014-03-22T00:00:00Z
date_updated: 2023-02-23T10:30:58Z
day: '22'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-176-v1-1
file:
- access_level: open_access
  checksum: 1d6958aa60050e1c3e932c6e5f34c39f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:07Z
  date_updated: 2020-07-14T12:46:49Z
  file_id: '5468'
  file_name: IST-2014-176-v1+1_icalp_14.pdf
  file_size: 328253
  relation: main_file
file_date_updated: 2020-07-14T12:46:49Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '18'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '176'
related_material:
  record:
  - id: '2163'
    relation: later_version
    status: public
status: public
title: Games with a weak adversary
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5419'
abstract:
- lang: eng
  text: "We consider the reachability and shortest path problems on low tree-width
    graphs, with n nodes, m edges, and tree-width t, on a standard RAM with wordsize
    W. We use O to hide polynomial factors of the inverse of the Ackermann function.
    Our main contributions are three fold:\r\n1. For reachability, we present an algorithm
    that requires O(n·t2·log(n/t)) preprocessing time, O(n·(t·log(n/t))/W) space,
    and O(t/W) time for pair queries and O((n·t)/W) time for single-source queries.
    Note that for constant t our algorithm uses O(n·logn) time for preprocessing;
    and O(n/W) time for single-source queries, which is faster than depth first search/breath
    first search (after the preprocessing).\r\n2. We present an algorithm for shortest
    path that requires O(n·t2) preprocessing time, O(n·t) space, and O(t2) time for
    pair queries and O(n·t) time single-source queries.\r\n3. We give a space versus
    query time trade-off algorithm for shortest path that, given any constant >0,
    requires O(n·t2) preprocessing time, O(n·t2) space, and O(n1−·t2) time for pair
    queries.\r\nOur algorithms improve all existing results, and use very simple data
    structures."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. <i>Improved Algorithms for Reachability
    and Shortest Path on Low Tree-Width Graphs</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">10.15479/AT:IST-2014-187-v1-1</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2014). <i>Improved
    algorithms for reachability and shortest path on low tree-width graphs</i>. IST
    Austria. <a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">https://doi.org/10.15479/AT:IST-2014-187-v1-1</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis.
    <i>Improved Algorithms for Reachability and Shortest Path on Low Tree-Width Graphs</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">https://doi.org/10.15479/AT:IST-2014-187-v1-1</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, <i>Improved algorithms
    for reachability and shortest path on low tree-width graphs</i>. IST Austria,
    2014.
  ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2014. Improved algorithms for
    reachability and shortest path on low tree-width graphs, IST Austria, 34p.
  mla: Chatterjee, Krishnendu, et al. <i>Improved Algorithms for Reachability and
    Shortest Path on Low Tree-Width Graphs</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">10.15479/AT:IST-2014-187-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Improved Algorithms for
    Reachability and Shortest Path on Low Tree-Width Graphs, IST Austria, 2014.
date_created: 2018-12-12T11:39:13Z
date_published: 2014-04-14T00:00:00Z
date_updated: 2021-01-12T08:02:03Z
day: '14'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-187-v1-1
file:
- access_level: open_access
  checksum: c608e66030a4bf51d2d99b451f539b99
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:25Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5548'
  file_name: IST-2014-187-v1+1_main_full_tech.pdf
  file_size: 670031
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file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '34'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '187'
status: public
title: Improved algorithms for reachability and shortest path on low tree-width graphs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5420'
abstract:
- lang: eng
  text: 'We consider concurrent mean-payoff games, a very well-studied class of two-player
    (player 1 vs player 2) zero-sum games on finite-state graphs where every transition
    is assigned a reward between 0 and 1, and the payoff function is the long-run
    average of the rewards. The value is the maximal expected payoff that player 1
    can guarantee against all strategies of player 2. We consider the computation
    of the set of states with value 1 under finite-memory strategies for player 1,
    and our main results for the problem are as follows: (1) we present a polynomial-time
    algorithm; (2) we show that whenever there is a finite-memory strategy, there
    is a stationary strategy that does not need memory at all; and (3) we present
    an optimal bound (which is double exponential) on the patience of stationary strategies
    (where patience of a distribution is the inverse of the smallest positive probability
    and represents a complexity measure of a stationary strategy).'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
citation:
  ama: Chatterjee K, Ibsen-Jensen R. <i>The Value 1 Problem for Concurrent Mean-Payoff
    Games</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">10.15479/AT:IST-2014-191-v1-1</a>
  apa: Chatterjee, K., &#38; Ibsen-Jensen, R. (2014). <i>The value 1 problem for concurrent
    mean-payoff games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">https://doi.org/10.15479/AT:IST-2014-191-v1-1</a>
  chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Value 1 Problem
    for Concurrent Mean-Payoff Games</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">https://doi.org/10.15479/AT:IST-2014-191-v1-1</a>.
  ieee: K. Chatterjee and R. Ibsen-Jensen, <i>The value 1 problem for concurrent mean-payoff
    games</i>. IST Austria, 2014.
  ista: Chatterjee K, Ibsen-Jensen R. 2014. The value 1 problem for concurrent mean-payoff
    games, IST Austria, 49p.
  mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Value 1 Problem for
    Concurrent Mean-Payoff Games</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">10.15479/AT:IST-2014-191-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, The Value 1 Problem for Concurrent Mean-Payoff
    Games, IST Austria, 2014.
date_created: 2018-12-12T11:39:14Z
date_published: 2014-04-14T00:00:00Z
date_updated: 2021-01-12T08:02:05Z
day: '14'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-191-v1-1
file:
- access_level: open_access
  checksum: 49e0fd3e62650346daf7dc04604f7a0a
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:58Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5520'
  file_name: IST-2014-191-v1+1_main_full.pdf
  file_size: 584368
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '49'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '191'
status: public
title: The value 1 problem for concurrent mean-payoff games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5421'
abstract:
- lang: eng
  text: 'Evolution occurs in populations of reproducing individuals. The structure
    of the population affects the outcome of the evolutionary process. Evolutionary
    graph theory is a powerful approach to study this phenomenon. There are two graphs.
    The interaction graph specifies who interacts with whom in the context of evolution.
    The replacement graph specifies who competes with whom for reproduction. The vertices
    of the two graphs are the same, and each vertex corresponds to an individual.
    A key quantity is the fixation probability of a new mutant. It is defined as the
    probability that a newly introduced mutant (on a single vertex) generates a lineage
    of offspring which eventually takes over the entire population of resident individuals.
    The basic computational questions are as follows: (i) the qualitative question
    asks whether the fixation probability is positive; and (ii) the quantitative approximation
    question asks for an approximation of the fixation probability. Our main results
    are: (1) We show that the qualitative question is NP-complete and the quantitative
    approximation question is #P-hard in the special case when the interaction and
    the replacement graphs coincide and even with the restriction that the resident
    individuals do not reproduce (which corresponds to an invading population taking
    over an empty structure). (2) We show that in general the qualitative question
    is PSPACE-complete and the quantitative approximation question is PSPACE-hard
    and can be solved in exponential time.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Martin
  full_name: Nowak, Martin
  last_name: Nowak
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Nowak M. <i>The Complexity of Evolution on Graphs</i>.
    IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">10.15479/AT:IST-2014-190-v2-2</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Nowak, M. (2014). <i>The complexity
    of evolution on graphs</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">https://doi.org/10.15479/AT:IST-2014-190-v2-2</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. <i>The Complexity
    of Evolution on Graphs</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">https://doi.org/10.15479/AT:IST-2014-190-v2-2</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, <i>The complexity of evolution
    on graphs</i>. IST Austria, 2014.
  ista: Chatterjee K, Ibsen-Jensen R, Nowak M. 2014. The complexity of evolution on
    graphs, IST Austria, 27p.
  mla: Chatterjee, Krishnendu, et al. <i>The Complexity of Evolution on Graphs</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">10.15479/AT:IST-2014-190-v2-2</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, M. Nowak, The Complexity of Evolution on
    Graphs, IST Austria, 2014.
date_created: 2018-12-12T11:39:14Z
date_published: 2014-04-18T00:00:00Z
date_updated: 2023-02-23T12:26:33Z
day: '18'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-190-v2-2
file:
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  checksum: 42f3d8b563286eb0d903832bd9a848d3
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  date_updated: 2020-07-14T12:46:50Z
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  file_size: 443529
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  checksum: 0c9a2fd822309719634495a35957e34d
  content_type: application/pdf
  creator: kschuh
  date_created: 2019-09-06T07:30:20Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '6852'
  file_name: IST-2014-190-v1+1_main_full.pdf
  file_size: 440911
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '27'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '190'
related_material:
  record:
  - id: '5432'
    relation: later_version
    status: public
  - id: '5440'
    relation: later_version
    status: public
status: public
title: The complexity of evolution on graphs
type: technical_report
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5422'
abstract:
- lang: eng
  text: Notes from the Third Plenary for the Research Data Alliance in Dublin, Ireland
    on March 26 to 28, 2014 with focus on starting an institutional research data
    repository.
author:
- first_name: Jana
  full_name: Porsche, Jana
  id: 3252EDC2-F248-11E8-B48F-1D18A9856A87
  last_name: Porsche
citation:
  ama: Porsche J. <i>Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland</i>. none; 2014.
  apa: Porsche, J. (2014). <i>Notes from Research Data Alliance Plenary Meeting in
    Dublin, Ireland</i>. none.
  chicago: Porsche, Jana. <i>Notes from Research Data Alliance Plenary Meeting in
    Dublin, Ireland</i>. none, 2014.
  ieee: J. Porsche, <i>Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland</i>. none, 2014.
  ista: Porsche J. 2014. Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland, none,p.
  mla: Porsche, Jana. <i>Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland</i>. none, 2014.
  short: J. Porsche, Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland, none, 2014.
date_created: 2018-12-12T11:39:14Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2020-07-14T23:04:56Z
ddc:
- '020'
department:
- _id: E-Lib
file:
- access_level: open_access
  checksum: 3954896648ce8afa8f7c4425e71cff08
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:40Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5501'
  file_name: IST-2014-254-v1+1_Dublin_Day_3.pdf
  file_size: 648585
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  checksum: 9a0d42b0b832dfe7e4b22fb6816bcbba
  content_type: application/pdf
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  date_created: 2018-12-12T11:53:41Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5502'
  file_name: IST-2014-254-v1+2_Dublin_Day_1.pdf
  file_size: 221339
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  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:42Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5503'
  file_name: IST-2014-254-v1+3_Dublin_Day_2.pdf
  file_size: 187778
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
oa: 1
oa_version: None
publisher: none
pubrep_id: '254'
status: public
title: Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland
type: report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
