---
_id: '7767'
abstract:
- lang: eng
  text: We present a model of soft active particles that leads to a rich array of
    collective behavior found also in dense biological swarms of bacteria and other
    unicellular organisms. Our model uses only local interactions, such as Vicsek-type
    nearest-neighbor alignment, short-range repulsion, and a local boundary term.
    Changing the relative strength of these interactions leads to migrating swarms,
    rotating swarms, and jammed swarms, as well as swarms that exhibit run-and-tumble
    motion, alternating between migration and either rotating or jammed states. Interestingly,
    although a migrating swarm moves slower than an individual particle, the diffusion
    constant can be up to three orders of magnitude larger, suggesting that collective
    motion can be highly advantageous, for example, when searching for food.
article_number: '032706'
article_processing_charge: No
article_type: original
author:
- first_name: Ruben
  full_name: van Drongelen, Ruben
  last_name: van Drongelen
- first_name: Anshuman
  full_name: Pal, Anshuman
  last_name: Pal
- first_name: Carl Peter
  full_name: Goodrich, Carl Peter
  id: EB352CD2-F68A-11E9-89C5-A432E6697425
  last_name: Goodrich
  orcid: 0000-0002-1307-5074
- first_name: Timon
  full_name: Idema, Timon
  last_name: Idema
citation:
  ama: van Drongelen R, Pal A, Goodrich CP, Idema T. Collective dynamics of soft active
    particles. <i>Physical Review E</i>. 2015;91(3). doi:<a href="https://doi.org/10.1103/physreve.91.032706">10.1103/physreve.91.032706</a>
  apa: van Drongelen, R., Pal, A., Goodrich, C. P., &#38; Idema, T. (2015). Collective
    dynamics of soft active particles. <i>Physical Review E</i>. American Physical
    Society. <a href="https://doi.org/10.1103/physreve.91.032706">https://doi.org/10.1103/physreve.91.032706</a>
  chicago: Drongelen, Ruben van, Anshuman Pal, Carl Peter Goodrich, and Timon Idema.
    “Collective Dynamics of Soft Active Particles.” <i>Physical Review E</i>. American
    Physical Society, 2015. <a href="https://doi.org/10.1103/physreve.91.032706">https://doi.org/10.1103/physreve.91.032706</a>.
  ieee: R. van Drongelen, A. Pal, C. P. Goodrich, and T. Idema, “Collective dynamics
    of soft active particles,” <i>Physical Review E</i>, vol. 91, no. 3. American
    Physical Society, 2015.
  ista: van Drongelen R, Pal A, Goodrich CP, Idema T. 2015. Collective dynamics of
    soft active particles. Physical Review E. 91(3), 032706.
  mla: van Drongelen, Ruben, et al. “Collective Dynamics of Soft Active Particles.”
    <i>Physical Review E</i>, vol. 91, no. 3, 032706, American Physical Society, 2015,
    doi:<a href="https://doi.org/10.1103/physreve.91.032706">10.1103/physreve.91.032706</a>.
  short: R. van Drongelen, A. Pal, C.P. Goodrich, T. Idema, Physical Review E 91 (2015).
date_created: 2020-04-30T11:41:38Z
date_published: 2015-03-01T00:00:00Z
date_updated: 2021-01-12T08:15:24Z
day: '01'
doi: 10.1103/physreve.91.032706
extern: '1'
intvolume: '        91'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
publication: Physical Review E
publication_identifier:
  issn:
  - 1539-3755
  - 1550-2376
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Collective dynamics of soft active particles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 91
year: '2015'
...
---
_id: '777'
abstract:
- lang: eng
  text: 'In many applications, the data is of rich structure that can be represented
    by a hypergraph, where the data items are represented by vertices and the associations
    among items are represented by hyperedges. Equivalently, we are given an input
    bipartite graph with two types of vertices: items, and associations (which we
    refer to as topics). We consider the problem of partitioning the set of items
    into a given number of components such that the maximum number of topics covered
    by a component is minimized. This is a clustering problem with various applications,
    e.g. partitioning of a set of information objects such as documents, images, and
    videos, and load balancing in the context of modern computation platforms.Inthis
    paper, we focus on the streaming computation model for this problem, in which
    items arrive online one at a time and each item must be assigned irrevocably to
    a component at its arrival time. Motivated by scalability requirements, we focus
    on the class of streaming computation algorithms with memory limited to be at
    most linear in the number of components. We show that a greedy assignment strategy
    is able to recover a hidden co-clustering of items under a natural set of recovery
    conditions. We also report results of an extensive empirical evaluation, which
    demonstrate that this greedy strategy yields superior performance when compared
    with alternative approaches.'
article_processing_charge: No
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Jennifer
  full_name: Iglesias, Jennifer
  last_name: Iglesias
- first_name: Milan
  full_name: Vojnović, Milan
  last_name: Vojnović
citation:
  ama: 'Alistarh D-A, Iglesias J, Vojnović M. Streaming min-max hypergraph partitioning.
    In: Vol 2015-January. Neural Information Processing Systems; 2015:1900-1908.'
  apa: 'Alistarh, D.-A., Iglesias, J., &#38; Vojnović, M. (2015). Streaming min-max
    hypergraph partitioning (Vol. 2015–January, pp. 1900–1908). Presented at the NIPS:
    Neural Information Processing Systems, Neural Information Processing Systems.'
  chicago: Alistarh, Dan-Adrian, Jennifer Iglesias, and Milan Vojnović. “Streaming
    Min-Max Hypergraph Partitioning,” 2015–January:1900–1908. Neural Information Processing
    Systems, 2015.
  ieee: 'D.-A. Alistarh, J. Iglesias, and M. Vojnović, “Streaming min-max hypergraph
    partitioning,” presented at the NIPS: Neural Information Processing Systems, 2015,
    vol. 2015–January, pp. 1900–1908.'
  ista: 'Alistarh D-A, Iglesias J, Vojnović M. 2015. Streaming min-max hypergraph
    partitioning. NIPS: Neural Information Processing Systems vol. 2015–January, 1900–1908.'
  mla: Alistarh, Dan-Adrian, et al. <i>Streaming Min-Max Hypergraph Partitioning</i>.
    Vol. 2015–January, Neural Information Processing Systems, 2015, pp. 1900–08.
  short: D.-A. Alistarh, J. Iglesias, M. Vojnović, in:, Neural Information Processing
    Systems, 2015, pp. 1900–1908.
conference:
  name: 'NIPS: Neural Information Processing Systems'
date_created: 2018-12-11T11:48:27Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2023-02-23T13:17:09Z
day: '01'
extern: '1'
language:
- iso: eng
main_file_link:
- url: http://papers.nips.cc/paper/5897-streaming-min-max-hypergraph-partitioning
month: '01'
oa_version: None
page: 1900 - 1908
publication_status: published
publisher: Neural Information Processing Systems
publist_id: '6879'
status: public
title: Streaming min-max hypergraph partitioning
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2015-January
year: '2015'
...
---
_id: '7779'
abstract:
- lang: eng
  text: "The fact that a disordered material is not constrained in its properties
    in\r\nthe same way as a crystal presents significant and yet largely untapped\r\npotential
    for novel material design. However, unlike their crystalline\r\ncounterparts,
    disordered solids are not well understood. One of the primary\r\nobstacles is
    the lack of a theoretical framework for thinking about disorder\r\nand its relation
    to mechanical properties. To this end, we study an idealized\r\nsystem of frictionless
    athermal soft spheres that, when compressed, undergoes a\r\njamming phase transition
    with diverging length scales and clean power-law\r\nsignatures. This critical
    point is the cornerstone of a much larger \"jamming\r\nscenario\" that has the
    potential to provide the essential theoretical\r\nfoundation necessary for a unified
    understanding of the mechanics of disordered\r\nsolids. We begin by showing that
    jammed sphere packings have a valid linear\r\nregime despite the presence of \"contact
    nonlinearities.\" We then investigate\r\nthe critical nature of the transition,
    focusing on diverging length scales and\r\nfinite-size effects. Next, we argue
    that jamming plays the same role for\r\ndisordered solids as the perfect crystal
    plays for crystalline solids. Not only\r\ncan it be considered an idealized starting
    point for understanding disordered\r\nmaterials, but it can even influence systems
    that have a relatively high amount\r\nof crystalline order. The behavior of solids
    can thus be thought of as existing\r\non a spectrum, with the perfect crystal
    and the jamming transition at opposing\r\nends. Finally, we introduce a new principle
    wherein the contribution of an\r\nindividual bond to one global property is independent
    of its contribution to\r\nanother. This principle allows the different global
    responses of a disordered\r\nsystem to be manipulated independently and provides
    a great deal of flexibility\r\nin designing materials with unique, textured and
    tunable properties."
article_processing_charge: No
arxiv: 1
author:
- first_name: Carl Peter
  full_name: Goodrich, Carl Peter
  id: EB352CD2-F68A-11E9-89C5-A432E6697425
  last_name: Goodrich
  orcid: 0000-0002-1307-5074
citation:
  ama: 'Goodrich CP. Unearthing the anticrystal: Criticality in the linear response
    of  disordered solids. <i>arXiv:151008820</i>. 2015.'
  apa: 'Goodrich, C. P. (2015). Unearthing the anticrystal: Criticality in the linear
    response of  disordered solids. <i>arXiv:1510.08820</i>.'
  chicago: 'Goodrich, Carl Peter. “Unearthing the Anticrystal: Criticality in the
    Linear Response of  Disordered Solids.” <i>ArXiv:1510.08820</i>, 2015.'
  ieee: 'C. P. Goodrich, “Unearthing the anticrystal: Criticality in the linear response
    of  disordered solids,” <i>arXiv:1510.08820</i>. 2015.'
  ista: 'Goodrich CP. 2015. Unearthing the anticrystal: Criticality in the linear
    response of  disordered solids. arXiv:1510.08820, .'
  mla: 'Goodrich, Carl Peter. “Unearthing the Anticrystal: Criticality in the Linear
    Response of  Disordered Solids.” <i>ArXiv:1510.08820</i>, 2015.'
  short: C.P. Goodrich, ArXiv:1510.08820 (2015).
date_created: 2020-04-30T12:16:18Z
date_published: 2015-10-29T00:00:00Z
date_updated: 2021-01-12T08:15:28Z
day: '29'
extern: '1'
external_id:
  arxiv:
  - '1510.08820'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1510.08820
month: '10'
oa: 1
oa_version: Preprint
page: '242'
publication: arXiv:1510.08820
publication_status: published
status: public
title: 'Unearthing the anticrystal: Criticality in the linear response of  disordered
  solids'
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '778'
abstract:
- lang: eng
  text: Several Hybrid Transactional Memory (HyTM) schemes have recently been proposed
    to complement the fast, but best-effort nature of Hardware Transactional Memory
    (HTM) with a slow, reliable software backup. However, the costs of providing concurrency
    between hardware and software transactions in HyTM are still not well understood.
    In this paper, we propose a general model for HyTM implementations, which captures
    the ability of hardware transactions to buffer memory accesses. The model allows
    us to formally quantify and analyze the amount of overhead (instrumentation) caused
    by the potential presence of software transactions.We prove that (1) it is impossible
    to build a strictly serializable HyTM implementation that has both uninstrumented
    reads and writes, even for very weak progress guarantees, and (2) the instrumentation
    cost incurred by a hardware transaction in any progressive opaque HyTM is linear
    in the size of the transaction’s data set.We further describe two implementations
    which exhibit optimal instrumentation costs for two different progress conditions.
    In sum, this paper proposes the first formal HyTM model and captures for the first
    time the trade-off between the degree of hardware-software TM concurrency and
    the amount of instrumentation overhead.
acknowledgement: P. Kuznetsov-The author is supported by the Agence Nationale de la
  Recherche, ANR-14-CE35-0010-01, project DISCMAT. N. Shavit-Support is gratfeully
  acknowledgedfrom the National Science Foundation under grants CCF-1217921, CCF-1201926,
  and IIS-1447786, the Department of Energy under grant ER26116/DE-SC0008923, and
  the Oracle and Intel corporations.
alternative_title:
- LNCS
article_processing_charge: No
arxiv: 1
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Justin
  full_name: Kopinsky, Justin
  last_name: Kopinsky
- first_name: Petr
  full_name: Kuznetsov, Petr
  last_name: Kuznetsov
- first_name: Srivatsan
  full_name: Ravi, Srivatsan
  last_name: Ravi
- first_name: Nir
  full_name: Shavit, Nir
  last_name: Shavit
citation:
  ama: 'Alistarh D-A, Kopinsky J, Kuznetsov P, Ravi S, Shavit N. Inherent limitations
    of hybrid transactional memory. In: Vol 9363. Springer; 2015:185-199. doi:<a href="https://doi.org/10.1007/978-3-662-48653-5_13">10.1007/978-3-662-48653-5_13</a>'
  apa: 'Alistarh, D.-A., Kopinsky, J., Kuznetsov, P., Ravi, S., &#38; Shavit, N. (2015).
    Inherent limitations of hybrid transactional memory (Vol. 9363, pp. 185–199).
    Presented at the DISC: Distributed Computing, Springer. <a href="https://doi.org/10.1007/978-3-662-48653-5_13">https://doi.org/10.1007/978-3-662-48653-5_13</a>'
  chicago: Alistarh, Dan-Adrian, Justin Kopinsky, Petr Kuznetsov, Srivatsan Ravi,
    and Nir Shavit. “Inherent Limitations of Hybrid Transactional Memory,” 9363:185–99.
    Springer, 2015. <a href="https://doi.org/10.1007/978-3-662-48653-5_13">https://doi.org/10.1007/978-3-662-48653-5_13</a>.
  ieee: 'D.-A. Alistarh, J. Kopinsky, P. Kuznetsov, S. Ravi, and N. Shavit, “Inherent
    limitations of hybrid transactional memory,” presented at the DISC: Distributed
    Computing, 2015, vol. 9363, pp. 185–199.'
  ista: 'Alistarh D-A, Kopinsky J, Kuznetsov P, Ravi S, Shavit N. 2015. Inherent limitations
    of hybrid transactional memory. DISC: Distributed Computing, LNCS, vol. 9363,
    185–199.'
  mla: Alistarh, Dan-Adrian, et al. <i>Inherent Limitations of Hybrid Transactional
    Memory</i>. Vol. 9363, Springer, 2015, pp. 185–99, doi:<a href="https://doi.org/10.1007/978-3-662-48653-5_13">10.1007/978-3-662-48653-5_13</a>.
  short: D.-A. Alistarh, J. Kopinsky, P. Kuznetsov, S. Ravi, N. Shavit, in:, Springer,
    2015, pp. 185–199.
conference:
  name: 'DISC: Distributed Computing'
date_created: 2018-12-11T11:48:27Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2023-02-23T13:17:35Z
day: '01'
doi: 10.1007/978-3-662-48653-5_13
extern: '1'
external_id:
  arxiv:
  - '1405.5689'
intvolume: '      9363'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1405.5689
month: '01'
oa: 1
oa_version: None
page: 185 - 199
publication_status: published
publisher: Springer
publist_id: '6880'
quality_controlled: '1'
status: public
title: Inherent limitations of hybrid transactional memory
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9363
year: '2015'
...
---
_id: '779'
abstract:
- lang: eng
  text: 'The concurrent memory reclamation problem is that of devising a way for a
    deallocating thread to verify that no other concurrent threads hold references
    to a memory block being deallocated. To date, in the absence of automatic garbage
    collection, there is no satisfactory solution to this problem; existing tracking
    methods like hazard pointers, reference counters, or epoch-based techniques like
    RCU, are either prohibitively expensive or require significant programming expertise,
    to the extent that implementing them efficiently can be worthy of a publication.
    None of the existing techniques are automatic or even semi-automated. In this
    paper, we take a new approach to concurrent memory reclamation: instead of manually
    tracking access to memory locations as done in techniques like hazard pointers,
    or restricting shared accesses to specific epoch boundaries as in RCU, our algorithm,
    called ThreadScan, leverages operating system signaling to automatically detect
    which memory locations are being accessed by concurrent threads. Initial empirical
    evidence shows that ThreadScan scales surprisingly well and requires negligible
    programming effort beyond the standard use of Malloc and Free.'
acknowledgement: Support is gratefully acknowledged from the National Science Foundation
  under grants CCF-1217921, CCF-1301926, and  IIS-1447786,  the  Department of Energy
  under grant ER26116/DE-SC0008923, and the Oracle corporation. In particular, we
  would like to thank Dave Dice, Alex Kogan, and Mark Moir from the Oracle Scalable
  Synchronization Research Group for very useful feedback on earlier drafts of this
  paper.
article_processing_charge: No
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Alexander
  full_name: Matveev, Alexander
  last_name: Matveev
- first_name: William
  full_name: Leiserson, William
  last_name: Leiserson
- first_name: Nir
  full_name: Shavit, Nir
  last_name: Shavit
citation:
  ama: 'Alistarh D-A, Matveev A, Leiserson W, Shavit N. ThreadScan: Automatic and
    scalable memory reclamation. In: Vol 2015-June. ACM; 2015:123-132. doi:<a href="https://doi.org/10.1145/2755573.2755600">10.1145/2755573.2755600</a>'
  apa: 'Alistarh, D.-A., Matveev, A., Leiserson, W., &#38; Shavit, N. (2015). ThreadScan:
    Automatic and scalable memory reclamation (Vol. 2015–June, pp. 123–132). Presented
    at the SPAA: Symposium on Parallelism in Algorithms and Architectures, ACM. <a
    href="https://doi.org/10.1145/2755573.2755600">https://doi.org/10.1145/2755573.2755600</a>'
  chicago: 'Alistarh, Dan-Adrian, Alexander Matveev, William Leiserson, and Nir Shavit.
    “ThreadScan: Automatic and Scalable Memory Reclamation,” 2015–June:123–32. ACM,
    2015. <a href="https://doi.org/10.1145/2755573.2755600">https://doi.org/10.1145/2755573.2755600</a>.'
  ieee: 'D.-A. Alistarh, A. Matveev, W. Leiserson, and N. Shavit, “ThreadScan: Automatic
    and scalable memory reclamation,” presented at the SPAA: Symposium on Parallelism
    in Algorithms and Architectures, 2015, vol. 2015–June, pp. 123–132.'
  ista: 'Alistarh D-A, Matveev A, Leiserson W, Shavit N. 2015. ThreadScan: Automatic
    and scalable memory reclamation. SPAA: Symposium on Parallelism in Algorithms
    and Architectures vol. 2015–June, 123–132.'
  mla: 'Alistarh, Dan-Adrian, et al. <i>ThreadScan: Automatic and Scalable Memory
    Reclamation</i>. Vol. 2015–June, ACM, 2015, pp. 123–32, doi:<a href="https://doi.org/10.1145/2755573.2755600">10.1145/2755573.2755600</a>.'
  short: D.-A. Alistarh, A. Matveev, W. Leiserson, N. Shavit, in:, ACM, 2015, pp.
    123–132.
conference:
  name: 'SPAA: Symposium on Parallelism in Algorithms and Architectures'
date_created: 2018-12-11T11:48:27Z
date_published: 2015-06-13T00:00:00Z
date_updated: 2023-02-23T12:35:42Z
day: '13'
doi: 10.1145/2755573.2755600
extern: '1'
language:
- iso: eng
month: '06'
oa_version: None
page: 123 - 132
publication_status: published
publisher: ACM
publist_id: '6876'
related_material:
  record:
  - id: '6001'
    relation: later_version
    status: public
status: public
title: 'ThreadScan: Automatic and scalable memory reclamation'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2015-June
year: '2015'
...
---
_id: '780'
abstract:
- lang: eng
  text: 'Population protocols are networks of finite-state agents, interacting randomly,
    and updating their states using simple rules. Despite their extreme simplicity,
    these systems have been shown to cooperatively perform complex computational tasks,
    such as simulating register machines to compute standard arithmetic functions.
    The election of a unique leader agent is a key requirement in such computational
    constructions. Yet, the fastest currently known population protocol for electing
    a leader only has linear convergence time, and it has recently been shown that
    no population protocol using a constant number of states per node may overcome
    this linear bound. In this paper, we give the first population protocol for leader
    election with polylogarithmic convergence time, using polylogarithmic memory states
    per node. The protocol structure is quite simple: each node has an associated
    value, and is either a leader (still in contention) or a minion (following some
    leader). A leader keeps incrementing its value and “defeats” other leaders in
    one-to-one interactions, and will drop from contention and become a minion if
    it meets a leader with higher value. Importantly, a leader also drops out if it
    meets a minion with higher absolute value. While these rules are quite simple,
    the proof that this algorithm achieves polylogarithmic convergence time is non-trivial.
    In particular, the argument combines careful use of concentration inequalities
    with anti-concentration bounds, showing that the leaders’ values become spread
    apart as the execution progresses, which in turn implies that straggling leaders
    get quickly eliminated. We complement our analysis with empirical results, showing
    that our protocol converges extremely fast, even for large network sizes.'
acknowledgement: Support is gratefully acknowledged from the National Science Foundation
  under grants CCF-1217921, CCF-1301926, and IIS-1447786, the Department of Energy
  under grant ER26116/DE-SC0008923, and the Oracle and Intel corporations.”
arxiv: 1
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Rati
  full_name: Gelashvili, Rati
  last_name: Gelashvili
citation:
  ama: 'Alistarh D-A, Gelashvili R. Polylogarithmic-time leader election in population
    protocols. In: Vol 9135. Springer; 2015:479-491. doi:<a href="https://doi.org/10.1007/978-3-662-47666-6_38">10.1007/978-3-662-47666-6_38</a>'
  apa: 'Alistarh, D.-A., &#38; Gelashvili, R. (2015). Polylogarithmic-time leader
    election in population protocols (Vol. 9135, pp. 479–491). Presented at the ICALP:
    International Colloquium on Automota, Languages and Programming, Springer. <a
    href="https://doi.org/10.1007/978-3-662-47666-6_38">https://doi.org/10.1007/978-3-662-47666-6_38</a>'
  chicago: Alistarh, Dan-Adrian, and Rati Gelashvili. “Polylogarithmic-Time Leader
    Election in Population Protocols,” 9135:479–91. Springer, 2015. <a href="https://doi.org/10.1007/978-3-662-47666-6_38">https://doi.org/10.1007/978-3-662-47666-6_38</a>.
  ieee: 'D.-A. Alistarh and R. Gelashvili, “Polylogarithmic-time leader election in
    population protocols,” presented at the ICALP: International Colloquium on Automota,
    Languages and Programming, 2015, vol. 9135, pp. 479–491.'
  ista: 'Alistarh D-A, Gelashvili R. 2015. Polylogarithmic-time leader election in
    population protocols. ICALP: International Colloquium on Automota, Languages and
    Programming vol. 9135, 479–491.'
  mla: Alistarh, Dan-Adrian, and Rati Gelashvili. <i>Polylogarithmic-Time Leader Election
    in Population Protocols</i>. Vol. 9135, Springer, 2015, pp. 479–91, doi:<a href="https://doi.org/10.1007/978-3-662-47666-6_38">10.1007/978-3-662-47666-6_38</a>.
  short: D.-A. Alistarh, R. Gelashvili, in:, Springer, 2015, pp. 479–491.
conference:
  name: 'ICALP: International Colloquium on Automota, Languages and Programming'
date_created: 2018-12-11T11:48:28Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2023-02-23T13:18:11Z
day: '01'
doi: 10.1007/978-3-662-47666-6_38
extern: '1'
external_id:
  arxiv:
  - '1502.05745'
intvolume: '      9135'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1502.05745
month: '01'
oa: 1
oa_version: Preprint
page: 479 - 491
publication_status: published
publisher: Springer
publist_id: '6877'
status: public
title: Polylogarithmic-time leader election in population protocols
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9135
year: '2015'
...
---
_id: '781'
abstract:
- lang: eng
  text: 'Population protocols, roughly defined as systems consisting of large numbers
    of simple identical agents, interacting at random and updating their state following
    simple rules, are an important research topic at the intersection of distributed
    computing and biology. One of the fundamental tasks that a population protocol
    may solve is majority: each node starts in one of two states; the goal is for
    all nodes to reach a correct consensus on which of the two states was initially
    the majority. Despite considerable research effort, known protocols for this problem
    are either exact but slow (taking linear parallel time to converge), or fast but
    approximate (with non-zero probability of error). In this paper, we show that
    this trade-off between preciasion and speed is not inherent. We present a new
    protocol called Average and Conquer (AVC) that solves majority ex-actly in expected
    parallel convergence time O(log n/(sε) + log n log s), where n is the number of
    nodes, εn is the initial node advantage of the majority state, and s = Ω(log n
    log log n) is the number of states the protocol employs. This shows that the majority
    problem can be solved exactly in time poly-logarithmic in n, provided that the
    memory per node is s = Ω(1/ε + lognlog1/ε). On the negative side, we establish
    a lower bound of Ω(1/ε) on the expected paraallel convergence time for the case
    of four memory states per node, and a lower bound of Ω(logn) parallel time for
    protocols using any number of memory states per node.per node, and a lower bound
    of (log n) parallel time for protocols using any number of memory states per node.'
article_processing_charge: No
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Rati
  full_name: Gelashvili, Rati
  last_name: Gelashvili
- first_name: Milan
  full_name: Vojnović, Milan
  last_name: Vojnović
citation:
  ama: 'Alistarh D-A, Gelashvili R, Vojnović M. Fast and exact majority in population
    protocols. In: Vol 2015-July. ACM; 2015:47-56. doi:<a href="https://doi.org/10.1145/2767386.2767429">10.1145/2767386.2767429</a>'
  apa: 'Alistarh, D.-A., Gelashvili, R., &#38; Vojnović, M. (2015). Fast and exact
    majority in population protocols (Vol. 2015–July, pp. 47–56). Presented at the
    PODC: Principles of Distributed Computing, ACM. <a href="https://doi.org/10.1145/2767386.2767429">https://doi.org/10.1145/2767386.2767429</a>'
  chicago: Alistarh, Dan-Adrian, Rati Gelashvili, and Milan Vojnović. “Fast and Exact
    Majority in Population Protocols,” 2015–July:47–56. ACM, 2015. <a href="https://doi.org/10.1145/2767386.2767429">https://doi.org/10.1145/2767386.2767429</a>.
  ieee: 'D.-A. Alistarh, R. Gelashvili, and M. Vojnović, “Fast and exact majority
    in population protocols,” presented at the PODC: Principles of Distributed Computing,
    2015, vol. 2015–July, pp. 47–56.'
  ista: 'Alistarh D-A, Gelashvili R, Vojnović M. 2015. Fast and exact majority in
    population protocols. PODC: Principles of Distributed Computing vol. 2015–July,
    47–56.'
  mla: Alistarh, Dan-Adrian, et al. <i>Fast and Exact Majority in Population Protocols</i>.
    Vol. 2015–July, ACM, 2015, pp. 47–56, doi:<a href="https://doi.org/10.1145/2767386.2767429">10.1145/2767386.2767429</a>.
  short: D.-A. Alistarh, R. Gelashvili, M. Vojnović, in:, ACM, 2015, pp. 47–56.
conference:
  name: 'PODC: Principles of Distributed Computing'
date_created: 2018-12-11T11:48:28Z
date_published: 2015-07-21T00:00:00Z
date_updated: 2023-02-23T13:18:35Z
day: '21'
doi: 10.1145/2767386.2767429
extern: '1'
language:
- iso: eng
month: '07'
oa_version: None
page: 47 - 56
publication_status: published
publisher: ACM
publist_id: '6873'
status: public
title: Fast and exact majority in population protocols
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2015-July
year: '2015'
...
---
_id: '782'
abstract:
- lang: eng
  text: 'In this work, we consider the following random process, mo- Tivated by the
    analysis of lock-free concurrent algorithms under high memory contention. In each
    round, a new scheduling step is allocated to one of n threads, according to a
    distribution p = (p1; p2; : : : ; pn), where thread i is scheduled with probability
    pi. When some thread first reaches a set threshold of executed steps, it registers
    a win, completing its current operation, and resets its step count to 1. At the
    same time, threads whose step count was close to the threshold also get reset
    because of the win, but to 0 steps, being penalized for almost winning. We are
    interested in two questions: how often does some thread complete an operation
    (system latency), and how often does a specific thread complete an operation (individual
    latency)? We provide asymptotically tight bounds for the system and individual
    latency of this general concurrency pattern, for arbitrary scheduling distributions
    p. Surprisingly, a sim- ple characterization exists: in expectation, the system
    will complete a new operation every Θ(1/p 2) steps, while thread i will complete
    a new operation every Θ(1/2=p i ) steps. The proof is interesting in its own right,
    as it requires a careful analysis of how the higher norms of the vector p inuence
    the thread step counts and latencies in this random process. Our result offers
    a simple connection between the scheduling distribution and the average performance
    of concurrent algorithms, which has several applications.'
article_processing_charge: No
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Thomas
  full_name: Sauerwald, Thomas
  last_name: Sauerwald
- first_name: Milan
  full_name: Vojnović, Milan
  last_name: Vojnović
citation:
  ama: 'Alistarh D-A, Sauerwald T, Vojnović M. Lock-Free algorithms under stochastic
    schedulers. In: Vol 2015-July. ACM; 2015:251-260. doi:<a href="https://doi.org/10.1145/2767386.2767430">10.1145/2767386.2767430</a>'
  apa: 'Alistarh, D.-A., Sauerwald, T., &#38; Vojnović, M. (2015). Lock-Free algorithms
    under stochastic schedulers (Vol. 2015–July, pp. 251–260). Presented at the PODC:
    Principles of Distributed Computing, ACM. <a href="https://doi.org/10.1145/2767386.2767430">https://doi.org/10.1145/2767386.2767430</a>'
  chicago: Alistarh, Dan-Adrian, Thomas Sauerwald, and Milan Vojnović. “Lock-Free
    Algorithms under Stochastic Schedulers,” 2015–July:251–60. ACM, 2015. <a href="https://doi.org/10.1145/2767386.2767430">https://doi.org/10.1145/2767386.2767430</a>.
  ieee: 'D.-A. Alistarh, T. Sauerwald, and M. Vojnović, “Lock-Free algorithms under
    stochastic schedulers,” presented at the PODC: Principles of Distributed Computing,
    2015, vol. 2015–July, pp. 251–260.'
  ista: 'Alistarh D-A, Sauerwald T, Vojnović M. 2015. Lock-Free algorithms under stochastic
    schedulers. PODC: Principles of Distributed Computing vol. 2015–July, 251–260.'
  mla: Alistarh, Dan-Adrian, et al. <i>Lock-Free Algorithms under Stochastic Schedulers</i>.
    Vol. 2015–July, ACM, 2015, pp. 251–60, doi:<a href="https://doi.org/10.1145/2767386.2767430">10.1145/2767386.2767430</a>.
  short: D.-A. Alistarh, T. Sauerwald, M. Vojnović, in:, ACM, 2015, pp. 251–260.
conference:
  name: 'PODC: Principles of Distributed Computing'
date_created: 2018-12-11T11:48:28Z
date_published: 2015-07-21T00:00:00Z
date_updated: 2023-02-23T13:18:50Z
day: '21'
doi: 10.1145/2767386.2767430
extern: '1'
language:
- iso: eng
month: '07'
oa_version: None
page: 251 - 260
publication_status: published
publisher: ACM
publist_id: '6874'
status: public
title: Lock-Free algorithms under stochastic schedulers
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2015-July
year: '2015'
...
---
_id: '783'
abstract:
- lang: eng
  text: 'The problem of electing a leader from among n contenders is one of the fundamental
    questions in distributed computing. In its simplest formulation, the task is as
    follows: given n processors, all participants must eventually return a win or
    lose indication, such that a single contender may win. Despite a considerable
    amount of work on leader election, the following question is still open: can we
    elect a leader in an asynchronous fault-prone system faster than just running
    a Θ(log n)-time tournament, against a strong adaptive adversary? In this paper,
    we answer this question in the affirmative, improving on a decades-old upper bound.
    We introduce two new algorithmic ideas to reduce the time complexity of electing
    a leader to O(log∗ n), using O(n2) point-to-point messages. A non-trivial application
    of our algorithm is a new upper bound for the tight renaming problem, assigning
    n items to the n participants in expected O(log2 n) time and O(n2) messages. We
    complement our results with lower bound of Ω(n2) messages for solving these two
    problems, closing the question of their message complexity.'
acknowledgement: "Support is gratefully acknowledged from the National Science Foundation
  under grants CCF-1217921, CCF-1301926,\r\nand  IIS-1447786,  the  Department  of
  \ Energy  under  grant\r\nER26116/DE-SC0008923,  and the  Oracle  and Intel  corporations.\r\nThe
  authors would like to thank Prof.  Nir Shavit for ad-\r\nvice and encouragement
  during this work,  and the anonymous reviewers for their very useful suggestions."
article_processing_charge: No
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Rati
  full_name: Gelashvili, Rati
  last_name: Gelashvili
- first_name: Adrian
  full_name: Vladu, Adrian
  last_name: Vladu
citation:
  ama: 'Alistarh D-A, Gelashvili R, Vladu A. How to elect a leader faster than a tournament.
    In: Vol 2015-July. ACM; 2015:365-374. doi:<a href="https://doi.org/10.1145/2767386.2767420">10.1145/2767386.2767420</a>'
  apa: 'Alistarh, D.-A., Gelashvili, R., &#38; Vladu, A. (2015). How to elect a leader
    faster than a tournament (Vol. 2015–July, pp. 365–374). Presented at the PODC:
    Principles of Distributed Computing, ACM. <a href="https://doi.org/10.1145/2767386.2767420">https://doi.org/10.1145/2767386.2767420</a>'
  chicago: Alistarh, Dan-Adrian, Rati Gelashvili, and Adrian Vladu. “How to Elect
    a Leader Faster than a Tournament,” 2015–July:365–74. ACM, 2015. <a href="https://doi.org/10.1145/2767386.2767420">https://doi.org/10.1145/2767386.2767420</a>.
  ieee: 'D.-A. Alistarh, R. Gelashvili, and A. Vladu, “How to elect a leader faster
    than a tournament,” presented at the PODC: Principles of Distributed Computing,
    2015, vol. 2015–July, pp. 365–374.'
  ista: 'Alistarh D-A, Gelashvili R, Vladu A. 2015. How to elect a leader faster than
    a tournament. PODC: Principles of Distributed Computing vol. 2015–July, 365–374.'
  mla: Alistarh, Dan-Adrian, et al. <i>How to Elect a Leader Faster than a Tournament</i>.
    Vol. 2015–July, ACM, 2015, pp. 365–74, doi:<a href="https://doi.org/10.1145/2767386.2767420">10.1145/2767386.2767420</a>.
  short: D.-A. Alistarh, R. Gelashvili, A. Vladu, in:, ACM, 2015, pp. 365–374.
conference:
  name: 'PODC: Principles of Distributed Computing'
date_created: 2018-12-11T11:48:28Z
date_published: 2015-07-21T00:00:00Z
date_updated: 2023-02-23T13:18:55Z
day: '21'
doi: 10.1145/2767386.2767420
extern: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1411.1001
month: '07'
oa: 1
oa_version: None
page: 365 - 374
publication_status: published
publisher: ACM
publist_id: '6875'
status: public
title: How to elect a leader faster than a tournament
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2015-July
year: '2015'
...
---
_id: '784'
abstract:
- lang: eng
  text: We demonstrate an optical switch design that can scale up to a thousand ports
    with high per-port bandwidth (25 Gbps+) and low switching latency (40 ns). Our
    design uses a broadcast and select architecture, based on a passive star coupler
    and fast tunable transceivers. In addition we employ time division multiplexing
    to achieve very low switching latency. Our demo shows the feasibility of the switch
    data plane using a small testbed, comprising two transmitters and a receiver,
    connected through a star coupler.
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Hitesh
  full_name: Ballani, Hitesh
  last_name: Ballani
- first_name: Paolo
  full_name: Costa, Paolo
  last_name: Costa
- first_name: Adam
  full_name: Funnell, Adam
  last_name: Funnell
- first_name: Joshua
  full_name: Benjamin, Joshua
  last_name: Benjamin
- first_name: Philip
  full_name: Watts, Philip
  last_name: Watts
- first_name: Benn
  full_name: Thomsen, Benn
  last_name: Thomsen
citation:
  ama: 'Alistarh D-A, Ballani H, Costa P, et al. A high-radix, low-latency optical
    switch for data centers. In: ACM; 2015:367-368. doi:<a href="https://doi.org/10.1145/2785956.2790035">10.1145/2785956.2790035</a>'
  apa: 'Alistarh, D.-A., Ballani, H., Costa, P., Funnell, A., Benjamin, J., Watts,
    P., &#38; Thomsen, B. (2015). A high-radix, low-latency optical switch for data
    centers (pp. 367–368). Presented at the SIGCOMM: Special Interest Group on Data
    Communication, London, United Kindgdom: ACM. <a href="https://doi.org/10.1145/2785956.2790035">https://doi.org/10.1145/2785956.2790035</a>'
  chicago: Alistarh, Dan-Adrian, Hitesh Ballani, Paolo Costa, Adam Funnell, Joshua
    Benjamin, Philip Watts, and Benn Thomsen. “A High-Radix, Low-Latency Optical Switch
    for Data Centers,” 367–68. ACM, 2015. <a href="https://doi.org/10.1145/2785956.2790035">https://doi.org/10.1145/2785956.2790035</a>.
  ieee: 'D.-A. Alistarh <i>et al.</i>, “A high-radix, low-latency optical switch for
    data centers,” presented at the SIGCOMM: Special Interest Group on Data Communication,
    London, United Kindgdom, 2015, pp. 367–368.'
  ista: 'Alistarh D-A, Ballani H, Costa P, Funnell A, Benjamin J, Watts P, Thomsen
    B. 2015. A high-radix, low-latency optical switch for data centers. SIGCOMM: Special
    Interest Group on Data Communication, 367–368.'
  mla: Alistarh, Dan-Adrian, et al. <i>A High-Radix, Low-Latency Optical Switch for
    Data Centers</i>. ACM, 2015, pp. 367–68, doi:<a href="https://doi.org/10.1145/2785956.2790035">10.1145/2785956.2790035</a>.
  short: D.-A. Alistarh, H. Ballani, P. Costa, A. Funnell, J. Benjamin, P. Watts,
    B. Thomsen, in:, ACM, 2015, pp. 367–368.
conference:
  end_date: 2015-08-21
  location: London, United Kindgdom
  name: 'SIGCOMM: Special Interest Group on Data Communication'
  start_date: 2015-08-17
date_created: 2018-12-11T11:48:29Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2023-02-23T13:18:57Z
day: '01'
doi: 10.1145/2785956.2790035
extern: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 367 - 368
publication_identifier:
  isbn:
  - 978-1-4503-3542-3
publication_status: published
publisher: ACM
publist_id: '6872'
quality_controlled: '1'
status: public
title: A high-radix, low-latency optical switch for data centers
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '802'
abstract:
- lang: eng
  text: Glycoinositolphosphoceramides (GIPCs) are complex sphingolipids present at
    the plasma membrane of various eukaryotes with the important exception of mammals.
    In fungi, these glycosphingolipids commonly contain an alpha-mannose residue (Man)
    linked at position 2 of the inositol. However, several pathogenic fungi additionally
    synthesize zwitterionic GIPCs carrying an alpha-glucosamine residue (GlcN) at
    this position. In the human pathogen Aspergillus fumigatus, the GlcNalpha1,2IPC
    core (where IPC is inositolphosphoceramide) is elongated to Manalpha1,3Manalpha1,6GlcNalpha1,2IPC,
    which is the most abundant GIPC synthesized by this fungus. In this study, we
    identified an A. fumigatus N-acetylglucosaminyltransferase, named GntA, and demonstrate
    its involvement in the initiation of zwitterionic GIPC biosynthesis. Targeted
    deletion of the gene encoding GntA in A. fumigatus resulted in complete absence
    of zwitterionic GIPC; a phenotype that could be reverted by episomal expression
    of GntA in the mutant. The N-acetylhexosaminyltransferase activity of GntA was
    substantiated by production of N-acetylhexosamine-IPC in the yeast Saccharomyces
    cerevisiae upon GntA expression. Using an in vitro assay, GntA was furthermore
    shown to use UDP-N-acetylglucosamine as donor substrate to generate a glycolipid
    product resistant to saponification and to digestion by phosphatidylinositol-phospholipase
    C as expected for GlcNAcalpha1,2IPC. Finally, as the enzymes involved in mannosylation
    of IPC, GntA was localized to the Golgi apparatus, the site of IPC synthesis.
author:
- first_name: Jakob
  full_name: Engel, Jakob
  last_name: Engel
- first_name: Philipp S
  full_name: Schmalhorst, Philipp S
  id: 309D50DA-F248-11E8-B48F-1D18A9856A87
  last_name: Schmalhorst
  orcid: 0000-0002-5795-0133
- first_name: Anke
  full_name: Kruger, Anke
  last_name: Kruger
- first_name: Christina
  full_name: Muller, Christina
  last_name: Muller
- first_name: Falk
  full_name: Buettner, Falk
  last_name: Buettner
- first_name: Françoise
  full_name: Routier, Françoise
  last_name: Routier
citation:
  ama: Engel J, Schmalhorst PS, Kruger A, Muller C, Buettner F, Routier F. Characterization
    of an N-acetylglucosaminyltransferase involved in Aspergillus fumigatus zwitterionic
    glycoinositolphosphoceramide biosynthesis. <i>Glycobiology</i>. 2015;25(12):1423-1430.
    doi:<a href="https://doi.org/10.1093/glycob/cwv059">10.1093/glycob/cwv059</a>
  apa: Engel, J., Schmalhorst, P. S., Kruger, A., Muller, C., Buettner, F., &#38;
    Routier, F. (2015). Characterization of an N-acetylglucosaminyltransferase involved
    in Aspergillus fumigatus zwitterionic glycoinositolphosphoceramide biosynthesis.
    <i>Glycobiology</i>. Oxford University Press. <a href="https://doi.org/10.1093/glycob/cwv059">https://doi.org/10.1093/glycob/cwv059</a>
  chicago: Engel, Jakob, Philipp S Schmalhorst, Anke Kruger, Christina Muller, Falk
    Buettner, and Françoise Routier. “Characterization of an N-Acetylglucosaminyltransferase
    Involved in Aspergillus Fumigatus Zwitterionic Glycoinositolphosphoceramide Biosynthesis.”
    <i>Glycobiology</i>. Oxford University Press, 2015. <a href="https://doi.org/10.1093/glycob/cwv059">https://doi.org/10.1093/glycob/cwv059</a>.
  ieee: J. Engel, P. S. Schmalhorst, A. Kruger, C. Muller, F. Buettner, and F. Routier,
    “Characterization of an N-acetylglucosaminyltransferase involved in Aspergillus
    fumigatus zwitterionic glycoinositolphosphoceramide biosynthesis,” <i>Glycobiology</i>,
    vol. 25, no. 12. Oxford University Press, pp. 1423–1430, 2015.
  ista: Engel J, Schmalhorst PS, Kruger A, Muller C, Buettner F, Routier F. 2015.
    Characterization of an N-acetylglucosaminyltransferase involved in Aspergillus
    fumigatus zwitterionic glycoinositolphosphoceramide biosynthesis. Glycobiology.
    25(12), 1423–1430.
  mla: Engel, Jakob, et al. “Characterization of an N-Acetylglucosaminyltransferase
    Involved in Aspergillus Fumigatus Zwitterionic Glycoinositolphosphoceramide Biosynthesis.”
    <i>Glycobiology</i>, vol. 25, no. 12, Oxford University Press, 2015, pp. 1423–30,
    doi:<a href="https://doi.org/10.1093/glycob/cwv059">10.1093/glycob/cwv059</a>.
  short: J. Engel, P.S. Schmalhorst, A. Kruger, C. Muller, F. Buettner, F. Routier,
    Glycobiology 25 (2015) 1423–1430.
date_created: 2018-12-11T11:48:35Z
date_published: 2015-12-01T00:00:00Z
date_updated: 2021-01-12T08:16:33Z
day: '01'
department:
- _id: CaHe
doi: 10.1093/glycob/cwv059
external_id:
  pmid:
  - '26306635'
intvolume: '        25'
issue: '12'
language:
- iso: eng
month: '12'
oa_version: None
page: 1423 - 1430
pmid: 1
publication: Glycobiology
publication_status: published
publisher: Oxford University Press
publist_id: '6851'
quality_controlled: '1'
scopus_import: 1
status: public
title: Characterization of an N-acetylglucosaminyltransferase involved in Aspergillus
  fumigatus zwitterionic glycoinositolphosphoceramide biosynthesis
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 25
year: '2015'
...
---
_id: '814'
abstract:
- lang: eng
  text: Human immunodeficiency virus type 1 (HIV-1) assembly proceeds in two stages.
    First, the 55 kilodalton viral Gag polyprotein assembles into a hexameric protein
    lattice at the plasma membrane of the infected cell, inducing budding and release
    of an immature particle. Second, Gag is cleaved by the viral protease, leading
    to internal rearrangement of the virus into the mature, infectious form. Immature
    and mature HIV-1 particles are heterogeneous in size and morphology, preventing
    high-resolution analysis of their protein arrangement in situ by conventional
    structural biology methods. Here we apply cryo-electron tomography and sub-tomogram
    averaging methods to resolve the structure of the capsid lattice within intact
    immature HIV-1 particles at subnanometre resolution, allowing unambiguous positioning
    of all Î±-helices. The resulting model reveals tertiary and quaternary structural
    interactions that mediate HIV-1 assembly. Strikingly, these interactions differ
    from those predicted by the current model based on in vitro-assembled arrays of
    Gag-derived proteins from Mason-Pfizer monkey virus. To validate this difference,
    we solve the structure of the capsid lattice within intact immature Mason-Pfizer
    monkey virus particles. Comparison with the immature HIV-1 structure reveals that
    retroviral capsid proteins, while having conserved tertiary structures, adopt
    different quaternary arrangements during virus assembly. The approach demonstrated
    here should be applicable to determine structures of other proteins at subnanometre
    resolution within heterogeneous environments.
acknowledgement: This study was supported by Deutsche Forschungsgemeinschaft grants
  BR 3635/2-1 to J.A.G.B., KR 906/7-1 to H.-G.K. and by Grant Agency of the Czech
  Republic 14-15326S to M.R. The Briggs laboratory acknowledges financial support
  from the European Molecular Biology Laboratory and from the Chica und Heinz Schaller
  Stiftung. We thank B. Glass, M. Anders and S. Mattei for preparation of samples,
  and R. Hadravova, K. H. Bui, F. Thommen, M. Schorb, S. Dodonova, S. Glatt, P. Ulbrich
  and T. Bharat for technical support and/or discussion. This study was technically
  supported by the European Molecular Biology Laboratory IT services unit.
author:
- first_name: Florian
  full_name: Florian Schur
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
- first_name: Wim
  full_name: Hagen, Wim J
  last_name: Hagen
- first_name: Michaela
  full_name: Rumlová, Michaela
  last_name: Rumlová
- first_name: Tomáš
  full_name: Ruml, Tomáš
  last_name: Ruml
- first_name: B
  full_name: Müller B
  last_name: Müller
- first_name: Hans
  full_name: Kraüsslich, Hans Georg
  last_name: Kraüsslich
- first_name: John
  full_name: Briggs, John A
  last_name: Briggs
citation:
  ama: Schur FK, Hagen W, Rumlová M, et al. Structure of the immature HIV-1 capsid
    in intact virus particles at 8.8 Å resolution. <i>Nature</i>. 2015;517(7535):505-508.
    doi:<a href="https://doi.org/10.1038/nature13838">10.1038/nature13838</a>
  apa: Schur, F. K., Hagen, W., Rumlová, M., Ruml, T., Müller, B., Kraüsslich, H.,
    &#38; Briggs, J. (2015). Structure of the immature HIV-1 capsid in intact virus
    particles at 8.8 Å resolution. <i>Nature</i>. Nature Publishing Group. <a href="https://doi.org/10.1038/nature13838">https://doi.org/10.1038/nature13838</a>
  chicago: Schur, Florian KM, Wim Hagen, Michaela Rumlová, Tomáš Ruml, B Müller, Hans
    Kraüsslich, and John Briggs. “Structure of the Immature HIV-1 Capsid in Intact
    Virus Particles at 8.8 Å Resolution.” <i>Nature</i>. Nature Publishing Group,
    2015. <a href="https://doi.org/10.1038/nature13838">https://doi.org/10.1038/nature13838</a>.
  ieee: F. K. Schur <i>et al.</i>, “Structure of the immature HIV-1 capsid in intact
    virus particles at 8.8 Å resolution,” <i>Nature</i>, vol. 517, no. 7535. Nature
    Publishing Group, pp. 505–508, 2015.
  ista: Schur FK, Hagen W, Rumlová M, Ruml T, Müller B, Kraüsslich H, Briggs J. 2015.
    Structure of the immature HIV-1 capsid in intact virus particles at 8.8 Å resolution.
    Nature. 517(7535), 505–508.
  mla: Schur, Florian KM, et al. “Structure of the Immature HIV-1 Capsid in Intact
    Virus Particles at 8.8 Å Resolution.” <i>Nature</i>, vol. 517, no. 7535, Nature
    Publishing Group, 2015, pp. 505–08, doi:<a href="https://doi.org/10.1038/nature13838">10.1038/nature13838</a>.
  short: F.K. Schur, W. Hagen, M. Rumlová, T. Ruml, B. Müller, H. Kraüsslich, J. Briggs,
    Nature 517 (2015) 505–508.
date_created: 2018-12-11T11:48:39Z
date_published: 2015-01-22T00:00:00Z
date_updated: 2021-01-12T08:17:08Z
day: '22'
doi: 10.1038/nature13838
extern: 1
intvolume: '       517'
issue: '7535'
month: '01'
page: 505 - 508
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '6836'
quality_controlled: 0
status: public
title: Structure of the immature HIV-1 capsid in intact virus particles at 8.8 Å resolution
type: journal_article
volume: 517
year: '2015'
...
---
_id: '815'
abstract:
- lang: eng
  text: "The polyprotein Gag is the primary structural component of retroviruses.
    Gag consists of independently folded domains connected by flexible linkers. Interactions
    between the conserved capsid (CA) domains of Gag mediate formation of hexameric
    protein lattices that drive assembly of immature virus particles. Proteolytic
    cleavage of Gag by the viral protease (PR) is required for maturation of retroviruses
    from an immature form into an infectious form. Within the assembled Gag lattices
    of HIV-1 and Mason- Pfizer monkey virus (M-PMV), the C-terminal domain of CA adopts
    similar quaternary arrangements, while the N-terminal domain of CA is packed in
    very different manners. Here, we have used cryo-electron tomography and subtomogram
    averaging to study in vitro-assembled, immature virus-like Rous sarcoma virus
    (RSV) Gag particles and have determined the structure of CA and the surrounding
    regions to a resolution of ~8 Å. We found that the C-terminal domain of RSV CA
    is arranged similarly to HIV-1 and M-PMV, whereas the N-terminal domain of CA
    adopts a novel arrangement in which the upstream p10 domain folds back into the
    CA lattice. In this position the cleavage site between CA and p10 appears to be
    inaccessible to PR. Below CA, an extended density is consistent with the presence
    of a six-helix bundle formed by the spacer-peptide region. We have also assessed
    the affect of lattice assembly on proteolytic processing by exogenous PR. The
    cleavage between p10 and CA is indeed inhibited in the assembled lattice, a finding
    consistent with structural regulation of proteolytic maturation.\r\n"
author:
- first_name: Florian
  full_name: Schur, Florian
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
- first_name: Robert
  full_name: Dick, Robert
  last_name: Dick
- first_name: Wim
  full_name: Hagen, Wim
  last_name: Hagen
- first_name: Volker
  full_name: Vogt, Volker
  last_name: Vogt
- first_name: John
  full_name: Briggs, John
  last_name: Briggs
citation:
  ama: Schur FK, Dick R, Hagen W, Vogt V, Briggs J. The structure of immature virus
    like Rous sarcoma virus gag particles reveals a structural role for the p10 domain
    in assembly. <i>Journal of Virology</i>. 2015;89(20):10294-10302. doi:<a href="https://doi.org/10.1128/JVI.01502-15">10.1128/JVI.01502-15</a>
  apa: Schur, F. K., Dick, R., Hagen, W., Vogt, V., &#38; Briggs, J. (2015). The structure
    of immature virus like Rous sarcoma virus gag particles reveals a structural role
    for the p10 domain in assembly. <i>Journal of Virology</i>. ASM. <a href="https://doi.org/10.1128/JVI.01502-15">https://doi.org/10.1128/JVI.01502-15</a>
  chicago: Schur, Florian KM, Robert Dick, Wim Hagen, Volker Vogt, and John Briggs.
    “The Structure of Immature Virus like Rous Sarcoma Virus Gag Particles Reveals
    a Structural Role for the P10 Domain in Assembly.” <i>Journal of Virology</i>.
    ASM, 2015. <a href="https://doi.org/10.1128/JVI.01502-15">https://doi.org/10.1128/JVI.01502-15</a>.
  ieee: F. K. Schur, R. Dick, W. Hagen, V. Vogt, and J. Briggs, “The structure of
    immature virus like Rous sarcoma virus gag particles reveals a structural role
    for the p10 domain in assembly,” <i>Journal of Virology</i>, vol. 89, no. 20.
    ASM, pp. 10294–10302, 2015.
  ista: Schur FK, Dick R, Hagen W, Vogt V, Briggs J. 2015. The structure of immature
    virus like Rous sarcoma virus gag particles reveals a structural role for the
    p10 domain in assembly. Journal of Virology. 89(20), 10294–10302.
  mla: Schur, Florian KM, et al. “The Structure of Immature Virus like Rous Sarcoma
    Virus Gag Particles Reveals a Structural Role for the P10 Domain in Assembly.”
    <i>Journal of Virology</i>, vol. 89, no. 20, ASM, 2015, pp. 10294–302, doi:<a
    href="https://doi.org/10.1128/JVI.01502-15">10.1128/JVI.01502-15</a>.
  short: F.K. Schur, R. Dick, W. Hagen, V. Vogt, J. Briggs, Journal of Virology 89
    (2015) 10294–10302.
date_created: 2018-12-11T11:48:39Z
date_published: 2015-09-22T00:00:00Z
date_updated: 2021-01-12T08:17:09Z
day: '22'
doi: 10.1128/JVI.01502-15
extern: '1'
external_id:
  pmid:
  - '26223638'
intvolume: '        89'
issue: '20'
language:
- iso: eng
month: '09'
oa_version: None
page: 10294 - 10302
pmid: 1
publication: Journal of Virology
publication_status: published
publisher: ASM
publist_id: '6837'
quality_controlled: '1'
status: public
title: The structure of immature virus like Rous sarcoma virus gag particles reveals
  a structural role for the p10 domain in assembly
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 89
year: '2015'
...
---
_id: '8183'
abstract:
- lang: eng
  text: "We study conditions under which a finite simplicial complex $K$ can be mapped
    to $\\mathbb R^d$ without higher-multiplicity intersections. An almost $r$-embedding
    is a map $f: K\\to \\mathbb R^d$ such that the images of any $r$\r\npairwise disjoint
    simplices of $K$ do not have a common point. We show that if $r$ is not a prime
    power and $d\\geq 2r+1$, then there is a counterexample to the topological Tverberg
    conjecture, i.e., there is an almost $r$-embedding of\r\nthe $(d+1)(r-1)$-simplex
    in $\\mathbb R^d$. This improves on previous constructions of counterexamples
    (for $d\\geq 3r$) based on a series of papers by M. \\\"Ozaydin, M. Gromov, P.
    Blagojevi\\'c, F. Frick, G. Ziegler, and the second and fourth present authors.
    The counterexamples are obtained by proving the following algebraic criterion
    in codimension 2: If $r\\ge3$ and if $K$ is a finite $2(r-1)$-complex then there
    exists an almost $r$-embedding $K\\to \\mathbb R^{2r}$ if and only if there exists
    a general position PL map $f:K\\to \\mathbb R^{2r}$ such that the algebraic intersection
    number of the $f$-images of any $r$ pairwise disjoint simplices of $K$ is zero.
    This result can be restated in terms of cohomological obstructions or equivariant
    maps, and extends an analogous codimension 3 criterion by the second and fourth
    authors. As another application we classify ornaments $f:S^3 \\sqcup S^3\\sqcup
    S^3\\to \\mathbb R^5$ up to ornament\r\nconcordance. It follows from work of M.
    Freedman, V. Krushkal and P. Teichner that the analogous criterion for $r=2$ is
    false. We prove a lemma on singular higher-dimensional Borromean rings, yielding
    an elementary proof of the counterexample."
acknowledgement: We would like to thank A. Klyachko, V. Krushkal, S. Melikhov, M.
  Tancer, P. Teichner and anonymous referees for helpful discussions.
article_number: '1511.03501'
article_processing_charge: No
arxiv: 1
author:
- first_name: Sergey
  full_name: Avvakumov, Sergey
  id: 3827DAC8-F248-11E8-B48F-1D18A9856A87
  last_name: Avvakumov
- first_name: Isaac
  full_name: Mabillard, Isaac
  id: 32BF9DAA-F248-11E8-B48F-1D18A9856A87
  last_name: Mabillard
- first_name: A.
  full_name: Skopenkov, A.
  last_name: Skopenkov
- first_name: Uli
  full_name: Wagner, Uli
  id: 36690CA2-F248-11E8-B48F-1D18A9856A87
  last_name: Wagner
  orcid: 0000-0002-1494-0568
citation:
  ama: Avvakumov S, Mabillard I, Skopenkov A, Wagner U. Eliminating higher-multiplicity
    intersections, III. Codimension 2. <i>arXiv</i>.
  apa: Avvakumov, S., Mabillard, I., Skopenkov, A., &#38; Wagner, U. (n.d.). Eliminating
    higher-multiplicity intersections, III. Codimension 2. <i>arXiv</i>.
  chicago: Avvakumov, Sergey, Isaac Mabillard, A. Skopenkov, and Uli Wagner. “Eliminating
    Higher-Multiplicity Intersections, III. Codimension 2.” <i>ArXiv</i>, n.d.
  ieee: S. Avvakumov, I. Mabillard, A. Skopenkov, and U. Wagner, “Eliminating higher-multiplicity
    intersections, III. Codimension 2,” <i>arXiv</i>. .
  ista: Avvakumov S, Mabillard I, Skopenkov A, Wagner U. Eliminating higher-multiplicity
    intersections, III. Codimension 2. arXiv, 1511.03501.
  mla: Avvakumov, Sergey, et al. “Eliminating Higher-Multiplicity Intersections, III.
    Codimension 2.” <i>ArXiv</i>, 1511.03501.
  short: S. Avvakumov, I. Mabillard, A. Skopenkov, U. Wagner, ArXiv (n.d.).
date_created: 2020-07-30T10:45:19Z
date_published: 2015-11-15T00:00:00Z
date_updated: 2023-09-07T13:12:17Z
day: '15'
department:
- _id: UlWa
external_id:
  arxiv:
  - '1511.03501'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1511.03501
month: '11'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
related_material:
  record:
  - id: '9308'
    relation: later_version
    status: public
  - id: '10220'
    relation: later_version
    status: public
  - id: '8156'
    relation: dissertation_contains
    status: public
status: public
title: Eliminating higher-multiplicity intersections, III. Codimension 2
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '1481'
abstract:
- lang: eng
  text: 'Simple board games, like Tic-Tac-Toe and CONNECT-4, play an important role
    not only in the development of mathematical and logical skills, but also in the
    emotional and social development. In this paper, we address the problem of generating
    targeted starting positions for such games. This can facilitate new approaches
    for bringing novice players to mastery, and also leads to discovery of interesting
    game variants. We present an approach that generates starting states of varying
    hardness levels for player 1 in a two-player board game, given rules of the board
    game, the desired number of steps required for player 1 to win, and the expertise
    levels of the two players. Our approach leverages symbolic methods and iterative
    simulation to efficiently search the extremely large state space. We present experimental
    results that include discovery of states of varying hardness levels for several
    simple grid-based board games. The presence of such states for standard game variants
    like 4×4 Tic-Tac-Toe opens up new games to be played that have never been played
    as the default start state is heavily biased. '
acknowledgement: "A Technical Report of this paper is available at: \r\nhttps://repository.ist.ac.at/id/eprint/146.\r\n"
article_processing_charge: No
author:
- first_name: Umair
  full_name: Ahmed, Umair
  last_name: Ahmed
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Sumit
  full_name: Gulwani, Sumit
  last_name: Gulwani
citation:
  ama: 'Ahmed U, Chatterjee K, Gulwani S. Automatic generation of alternative starting
    positions for simple traditional board games. In: <i>Proceedings of the Twenty-Ninth
    AAAI Conference on Artificial Intelligence</i>. Vol 2. AAAI Press; 2015:745-752.'
  apa: 'Ahmed, U., Chatterjee, K., &#38; Gulwani, S. (2015). Automatic generation
    of alternative starting positions for simple traditional board games. In <i>Proceedings
    of the Twenty-Ninth AAAI Conference on Artificial Intelligence</i> (Vol. 2, pp.
    745–752). Austin, TX, USA: AAAI Press.'
  chicago: Ahmed, Umair, Krishnendu Chatterjee, and Sumit Gulwani. “Automatic Generation
    of Alternative Starting Positions for Simple Traditional Board Games.” In <i>Proceedings
    of the Twenty-Ninth AAAI Conference on Artificial Intelligence</i>, 2:745–52.
    AAAI Press, 2015.
  ieee: U. Ahmed, K. Chatterjee, and S. Gulwani, “Automatic generation of alternative
    starting positions for simple traditional board games,” in <i>Proceedings of the
    Twenty-Ninth AAAI Conference on Artificial Intelligence</i>, Austin, TX, USA,
    2015, vol. 2, pp. 745–752.
  ista: 'Ahmed U, Chatterjee K, Gulwani S. 2015. Automatic generation of alternative
    starting positions for simple traditional board games. Proceedings of the Twenty-Ninth
    AAAI Conference on Artificial Intelligence. AAAI: Conference on Artificial Intelligence
    vol. 2, 745–752.'
  mla: Ahmed, Umair, et al. “Automatic Generation of Alternative Starting Positions
    for Simple Traditional Board Games.” <i>Proceedings of the Twenty-Ninth AAAI Conference
    on Artificial Intelligence</i>, vol. 2, AAAI Press, 2015, pp. 745–52.
  short: U. Ahmed, K. Chatterjee, S. Gulwani, in:, Proceedings of the Twenty-Ninth
    AAAI Conference on Artificial Intelligence, AAAI Press, 2015, pp. 745–752.
conference:
  end_date: 2015-01-30
  location: Austin, TX, USA
  name: 'AAAI: Conference on Artificial Intelligence'
  start_date: 2015-01-25
date_created: 2018-12-11T11:52:16Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2023-02-23T12:25:07Z
day: '01'
department:
- _id: KrCh
ec_funded: 1
intvolume: '         2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.aaai.org/ocs/index.php/AAAI/AAAI15/paper/download/9523/9300
month: '01'
oa: 1
oa_version: None
page: 745 - 752
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _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: Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence
publication_status: published
publisher: AAAI Press
publist_id: '5713'
quality_controlled: '1'
related_material:
  record:
  - id: '5410'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Automatic generation of alternative starting positions for simple traditional
  board games
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2015'
...
---
_id: '1483'
abstract:
- lang: eng
  text: Topological data analysis offers a rich source of valuable information to
    study vision problems. Yet, so far we lack a theoretically sound connection to
    popular kernel-based learning techniques, such as kernel SVMs or kernel PCA. In
    this work, we establish such a connection by designing a multi-scale kernel for
    persistence diagrams, a stable summary representation of topological features
    in data. We show that this kernel is positive definite and prove its stability
    with respect to the 1-Wasserstein distance. Experiments on two benchmark datasets
    for 3D shape classification/retrieval and texture recognition show considerable
    performance gains of the proposed method compared to an alternative approach that
    is based on the recently introduced persistence landscapes.
author:
- first_name: Jan
  full_name: Reininghaus, Jan
  id: 4505473A-F248-11E8-B48F-1D18A9856A87
  last_name: Reininghaus
- first_name: Stefan
  full_name: Huber, Stefan
  id: 4700A070-F248-11E8-B48F-1D18A9856A87
  last_name: Huber
  orcid: 0000-0002-8871-5814
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Roland
  full_name: Kwitt, Roland
  last_name: Kwitt
citation:
  ama: 'Reininghaus J, Huber S, Bauer U, Kwitt R. A stable multi-scale kernel for
    topological machine learning. In: IEEE; 2015:4741-4748. doi:<a href="https://doi.org/10.1109/CVPR.2015.7299106">10.1109/CVPR.2015.7299106</a>'
  apa: 'Reininghaus, J., Huber, S., Bauer, U., &#38; Kwitt, R. (2015). A stable multi-scale
    kernel for topological machine learning (pp. 4741–4748). Presented at the CVPR:
    Computer Vision and Pattern Recognition, Boston, MA, USA: IEEE. <a href="https://doi.org/10.1109/CVPR.2015.7299106">https://doi.org/10.1109/CVPR.2015.7299106</a>'
  chicago: Reininghaus, Jan, Stefan Huber, Ulrich Bauer, and Roland Kwitt. “A Stable
    Multi-Scale Kernel for Topological Machine Learning,” 4741–48. IEEE, 2015. <a
    href="https://doi.org/10.1109/CVPR.2015.7299106">https://doi.org/10.1109/CVPR.2015.7299106</a>.
  ieee: 'J. Reininghaus, S. Huber, U. Bauer, and R. Kwitt, “A stable multi-scale kernel
    for topological machine learning,” presented at the CVPR: Computer Vision and
    Pattern Recognition, Boston, MA, USA, 2015, pp. 4741–4748.'
  ista: 'Reininghaus J, Huber S, Bauer U, Kwitt R. 2015. A stable multi-scale kernel
    for topological machine learning. CVPR: Computer Vision and Pattern Recognition,
    4741–4748.'
  mla: Reininghaus, Jan, et al. <i>A Stable Multi-Scale Kernel for Topological Machine
    Learning</i>. IEEE, 2015, pp. 4741–48, doi:<a href="https://doi.org/10.1109/CVPR.2015.7299106">10.1109/CVPR.2015.7299106</a>.
  short: J. Reininghaus, S. Huber, U. Bauer, R. Kwitt, in:, IEEE, 2015, pp. 4741–4748.
conference:
  end_date: 2015-06-12
  location: Boston, MA, USA
  name: 'CVPR: Computer Vision and Pattern Recognition'
  start_date: 2015-06-07
date_created: 2018-12-11T11:52:17Z
date_published: 2015-10-14T00:00:00Z
date_updated: 2021-01-12T06:51:03Z
day: '14'
department:
- _id: HeEd
doi: 10.1109/CVPR.2015.7299106
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1412.6821
month: '10'
oa: 1
oa_version: Preprint
page: 4741 - 4748
publication_identifier:
  eisbn:
  - '978-1-4673-6964-0 '
publication_status: published
publisher: IEEE
publist_id: '5709'
scopus_import: 1
status: public
title: A stable multi-scale kernel for topological machine learning
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '1495'
abstract:
- lang: eng
  text: 'Motivated by biological questions, we study configurations of equal-sized
    disks in the Euclidean plane that neither pack nor cover. Measuring the quality
    by the probability that a random point lies in exactly one disk, we show that
    the regular hexagonal grid gives the maximum among lattice configurations. '
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Mabel
  full_name: Iglesias Ham, Mabel
  id: 41B58C0C-F248-11E8-B48F-1D18A9856A87
  last_name: Iglesias Ham
- first_name: Vitaliy
  full_name: Kurlin, Vitaliy
  last_name: Kurlin
citation:
  ama: 'Edelsbrunner H, Iglesias Ham M, Kurlin V. Relaxed disk packing. In: <i>Proceedings
    of the 27th Canadian Conference on Computational Geometry</i>. Vol 2015-August.
    Queen’s University; 2015:128-135.'
  apa: 'Edelsbrunner, H., Iglesias Ham, M., &#38; Kurlin, V. (2015). Relaxed disk
    packing. In <i>Proceedings of the 27th Canadian Conference on Computational Geometry</i>
    (Vol. 2015–August, pp. 128–135). Ontario, Canada: Queen’s University.'
  chicago: Edelsbrunner, Herbert, Mabel Iglesias Ham, and Vitaliy Kurlin. “Relaxed
    Disk Packing.” In <i>Proceedings of the 27th Canadian Conference on Computational
    Geometry</i>, 2015–August:128–35. Queen’s University, 2015.
  ieee: H. Edelsbrunner, M. Iglesias Ham, and V. Kurlin, “Relaxed disk packing,” in
    <i>Proceedings of the 27th Canadian Conference on Computational Geometry</i>,
    Ontario, Canada, 2015, vol. 2015–August, pp. 128–135.
  ista: 'Edelsbrunner H, Iglesias Ham M, Kurlin V. 2015. Relaxed disk packing. Proceedings
    of the 27th Canadian Conference on Computational Geometry. CCCG: Canadian Conference
    on Computational Geometry vol. 2015–August, 128–135.'
  mla: Edelsbrunner, Herbert, et al. “Relaxed Disk Packing.” <i>Proceedings of the
    27th Canadian Conference on Computational Geometry</i>, vol. 2015–August, Queen’s
    University, 2015, pp. 128–35.
  short: H. Edelsbrunner, M. Iglesias Ham, V. Kurlin, in:, Proceedings of the 27th
    Canadian Conference on Computational Geometry, Queen’s University, 2015, pp. 128–135.
conference:
  end_date: 2015-08-12
  location: Ontario, Canada
  name: 'CCCG: Canadian Conference on Computational Geometry'
  start_date: 2015-08-10
date_created: 2018-12-11T11:52:21Z
date_published: 2015-08-01T00:00:00Z
date_updated: 2021-01-12T06:51:09Z
day: '01'
department:
- _id: HeEd
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1505.03402
month: '08'
oa: 1
oa_version: Submitted Version
page: 128-135
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Proceedings of the 27th Canadian Conference on Computational Geometry
publication_status: published
publisher: Queen's University
publist_id: '5684'
quality_controlled: '1'
scopus_import: 1
status: public
title: Relaxed disk packing
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 2015-August
year: '2015'
...
---
_id: '1497'
abstract:
- lang: eng
  text: Detecting allelic biases from high-throughput sequencing data requires an
    approach that maximises sensitivity while minimizing false positives. Here, we
    present Allelome.PRO, an automated user-friendly bioinformatics pipeline, which
    uses high-throughput sequencing data from reciprocal crosses of two genetically
    distinct mouse strains to detect allele-specific expression and chromatin modifications.
    Allelome.PRO extends approaches used in previous studies that exclusively analyzed
    imprinted expression to give a complete picture of the ‘allelome’ by automatically
    categorising the allelic expression of all genes in a given cell type into imprinted,
    strain-biased, biallelic or non-informative. Allelome.PRO offers increased sensitivity
    to analyze lowly expressed transcripts, together with a robust false discovery
    rate empirically calculated from variation in the sequencing data. We used RNA-seq
    data from mouse embryonic fibroblasts from F1 reciprocal crosses to determine
    a biologically relevant allelic ratio cutoff, and define for the first time an
    entire allelome. Furthermore, we show that Allelome.PRO detects differential enrichment
    of H3K4me3 over promoters from ChIP-seq data validating the RNA-seq results. This
    approach can be easily extended to analyze histone marks of active enhancers,
    or transcription factor binding sites and therefore provides a powerful tool to
    identify candidate cis regulatory elements genome wide.
acknowledgement: "Austrian Science Fund [FWF P25185-B22, FWF F4302- B09, FWFW1207-B09].
  Funding for open access charge: Austrian Science Fund.\r\nWe thank Florian Breitwieser
  for advice during the early stages of this project. High-throughput sequencing was
  conducted by the Biomedical Sequencing Facility (BSF) at CeMM in Vienna."
article_number: e146
author:
- first_name: Daniel
  full_name: Andergassen, Daniel
  last_name: Andergassen
- first_name: Christoph
  full_name: Dotter, Christoph
  id: 4C66542E-F248-11E8-B48F-1D18A9856A87
  last_name: Dotter
- first_name: Tomasz
  full_name: Kulinski, Tomasz
  last_name: Kulinski
- first_name: Philipp
  full_name: Guenzl, Philipp
  last_name: Guenzl
- first_name: Philipp
  full_name: Bammer, Philipp
  last_name: Bammer
- first_name: Denise
  full_name: Barlow, Denise
  last_name: Barlow
- first_name: Florian
  full_name: Pauler, Florian
  last_name: Pauler
- first_name: Quanah
  full_name: Hudson, Quanah
  last_name: Hudson
citation:
  ama: Andergassen D, Dotter C, Kulinski T, et al. Allelome.PRO, a pipeline to define
    allele-specific genomic features from high-throughput sequencing data. <i>Nucleic
    Acids Research</i>. 2015;43(21). doi:<a href="https://doi.org/10.1093/nar/gkv727">10.1093/nar/gkv727</a>
  apa: Andergassen, D., Dotter, C., Kulinski, T., Guenzl, P., Bammer, P., Barlow,
    D., … Hudson, Q. (2015). Allelome.PRO, a pipeline to define allele-specific genomic
    features from high-throughput sequencing data. <i>Nucleic Acids Research</i>.
    Oxford University Press. <a href="https://doi.org/10.1093/nar/gkv727">https://doi.org/10.1093/nar/gkv727</a>
  chicago: Andergassen, Daniel, Christoph Dotter, Tomasz Kulinski, Philipp Guenzl,
    Philipp Bammer, Denise Barlow, Florian Pauler, and Quanah Hudson. “Allelome.PRO,
    a Pipeline to Define Allele-Specific Genomic Features from High-Throughput Sequencing
    Data.” <i>Nucleic Acids Research</i>. Oxford University Press, 2015. <a href="https://doi.org/10.1093/nar/gkv727">https://doi.org/10.1093/nar/gkv727</a>.
  ieee: D. Andergassen <i>et al.</i>, “Allelome.PRO, a pipeline to define allele-specific
    genomic features from high-throughput sequencing data,” <i>Nucleic Acids Research</i>,
    vol. 43, no. 21. Oxford University Press, 2015.
  ista: Andergassen D, Dotter C, Kulinski T, Guenzl P, Bammer P, Barlow D, Pauler
    F, Hudson Q. 2015. Allelome.PRO, a pipeline to define allele-specific genomic
    features from high-throughput sequencing data. Nucleic Acids Research. 43(21),
    e146.
  mla: Andergassen, Daniel, et al. “Allelome.PRO, a Pipeline to Define Allele-Specific
    Genomic Features from High-Throughput Sequencing Data.” <i>Nucleic Acids Research</i>,
    vol. 43, no. 21, e146, Oxford University Press, 2015, doi:<a href="https://doi.org/10.1093/nar/gkv727">10.1093/nar/gkv727</a>.
  short: D. Andergassen, C. Dotter, T. Kulinski, P. Guenzl, P. Bammer, D. Barlow,
    F. Pauler, Q. Hudson, Nucleic Acids Research 43 (2015).
date_created: 2018-12-11T11:52:22Z
date_published: 2015-07-21T00:00:00Z
date_updated: 2021-01-12T06:51:09Z
day: '21'
ddc:
- '570'
department:
- _id: GaNo
doi: 10.1093/nar/gkv727
file:
- access_level: open_access
  checksum: 385b83854fd0eb2e4f386867da2823e2
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-20T14:18:57Z
  date_updated: 2020-07-14T12:44:58Z
  file_id: '5768'
  file_name: 2015_NucleicAcidsRes_Andergassen.pdf
  file_size: 6863297
  relation: main_file
file_date_updated: 2020-07-14T12:44:58Z
has_accepted_license: '1'
intvolume: '        43'
issue: '21'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Nucleic Acids Research
publication_status: published
publisher: Oxford University Press
publist_id: '5682'
quality_controlled: '1'
scopus_import: 1
status: public
title: Allelome.PRO, a pipeline to define allele-specific genomic features from high-throughput
  sequencing 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: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 43
year: '2015'
...
---
_id: '1498'
abstract:
- lang: eng
  text: Fault-tolerant distributed algorithms play an important role in many critical/high-availability
    applications. These algorithms are notoriously difficult to implement correctly,
    due to asynchronous communication and the occurrence of faults, such as the network
    dropping messages or computers crashing. Nonetheless there is surprisingly little
    language and verification support to build distributed systems based on fault-tolerant
    algorithms. In this paper, we present some of the challenges that a designer has
    to overcome to implement a fault-tolerant distributed system. Then we review different
    models that have been proposed to reason about distributed algorithms and sketch
    how such a model can form the basis for a domain-specific programming language.
    Adopting a high-level programming model can simplify the programmer's life and
    make the code amenable to automated verification, while still compiling to efficiently
    executable code. We conclude by summarizing the current status of an ongoing language
    design and implementation project that is based on this idea.
alternative_title:
- LIPIcs
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: 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, Zufferey D. The need for language support for fault-tolerant
    distributed systems. 2015;32:90-102. doi:<a href="https://doi.org/10.4230/LIPIcs.SNAPL.2015.90">10.4230/LIPIcs.SNAPL.2015.90</a>
  apa: 'Dragoi, C., Henzinger, T. A., &#38; Zufferey, D. (2015). The need for language
    support for fault-tolerant distributed systems. Presented at the SNAPL: Summit
    oN Advances in Programming Languages, Asilomar, CA, United States: Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.SNAPL.2015.90">https://doi.org/10.4230/LIPIcs.SNAPL.2015.90</a>'
  chicago: Dragoi, Cezara, Thomas A Henzinger, and Damien Zufferey. “The Need for
    Language Support for Fault-Tolerant Distributed Systems.” Leibniz International
    Proceedings in Informatics. Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2015. <a href="https://doi.org/10.4230/LIPIcs.SNAPL.2015.90">https://doi.org/10.4230/LIPIcs.SNAPL.2015.90</a>.
  ieee: C. Dragoi, T. A. Henzinger, and D. Zufferey, “The need for language support
    for fault-tolerant distributed systems,” vol. 32. Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, pp. 90–102, 2015.
  ista: Dragoi C, Henzinger TA, Zufferey D. 2015. The need for language support for
    fault-tolerant distributed systems. 32, 90–102.
  mla: Dragoi, Cezara, et al. <i>The Need for Language Support for Fault-Tolerant
    Distributed Systems</i>. Vol. 32, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2015, pp. 90–102, doi:<a href="https://doi.org/10.4230/LIPIcs.SNAPL.2015.90">10.4230/LIPIcs.SNAPL.2015.90</a>.
  short: C. Dragoi, T.A. Henzinger, D. Zufferey, 32 (2015) 90–102.
conference:
  end_date: 2015-05-06
  location: Asilomar, CA, United States
  name: 'SNAPL: Summit oN Advances in Programming Languages'
  start_date: 2015-05-03
date_created: 2018-12-11T11:52:22Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2020-08-11T10:09:14Z
day: '01'
ddc:
- '005'
department:
- _id: ToHe
doi: 10.4230/LIPIcs.SNAPL.2015.90
ec_funded: 1
file:
- access_level: open_access
  checksum: cf5e94baa89a2dc4c5de01abc676eda8
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:14:02Z
  date_updated: 2020-07-14T12:44:58Z
  file_id: '5050'
  file_name: IST-2016-499-v1+1_9.pdf
  file_size: 489362
  relation: main_file
file_date_updated: 2020-07-14T12:44:58Z
has_accepted_license: '1'
intvolume: '        32'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 90 - 102
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11402-N23
  name: Moderne Concurrency Paradigms
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
publication_identifier:
  isbn:
  - '978-3-939897-80-4 '
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '5681'
pubrep_id: '499'
quality_controlled: '1'
scopus_import: 1
series_title: Leibniz International Proceedings in Informatics
status: public
title: The need for language support for fault-tolerant distributed systems
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2015'
...
---
_id: '1499'
abstract:
- lang: eng
  text: "We consider weighted automata with both positive and negative integer weights
    on edges and\r\nstudy the problem of synchronization using adaptive strategies
    that may only observe whether\r\nthe current weight-level is negative or nonnegative.
    We show that the synchronization problem is decidable in polynomial time for deterministic
    weighted automata."
acknowledgement: "The research leading to these results has received funding from
  the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement
  601148 (CASSTING), EU FP7 FET project SENSATION, Sino-Danish Basic Research Center
  IDAE4CPS, the European Research Council (ERC) under grant agreement 267989 (QUAREM),
  the Austrian Science Fund (FWF) project S11402-N23 (RiSE) and Z211-N23 (Wittgenstein
  Award), the Czech Science Foundation under grant agreement P202/12/G061, and People
  Programme (Marie Curie Actions) of the European Union’s Seventh Framework\r\nProgramme
  (FP7/2007-2013) REA Grant No 291734."
alternative_title:
- LIPIcs
author:
- first_name: Jan
  full_name: Kretinsky, Jan
  id: 44CEF464-F248-11E8-B48F-1D18A9856A87
  last_name: Kretinsky
  orcid: 0000-0002-8122-2881
- first_name: Kim
  full_name: Larsen, Kim
  last_name: Larsen
- first_name: Simon
  full_name: Laursen, Simon
  last_name: Laursen
- first_name: Jiří
  full_name: Srba, Jiří
  last_name: Srba
citation:
  ama: 'Kretinsky J, Larsen K, Laursen S, Srba J. Polynomial time decidability of
    weighted synchronization under partial observability. In: Vol 42. Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik; 2015:142-154. doi:<a href="https://doi.org/10.4230/LIPIcs.CONCUR.2015.142">10.4230/LIPIcs.CONCUR.2015.142</a>'
  apa: 'Kretinsky, J., Larsen, K., Laursen, S., &#38; Srba, J. (2015). Polynomial
    time decidability of weighted synchronization under partial observability (Vol.
    42, pp. 142–154). Presented at the CONCUR: Concurrency Theory, Madrid, Spain:
    Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.CONCUR.2015.142">https://doi.org/10.4230/LIPIcs.CONCUR.2015.142</a>'
  chicago: Kretinsky, Jan, Kim Larsen, Simon Laursen, and Jiří Srba. “Polynomial Time
    Decidability of Weighted Synchronization under Partial Observability,” 42:142–54.
    Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2015. <a href="https://doi.org/10.4230/LIPIcs.CONCUR.2015.142">https://doi.org/10.4230/LIPIcs.CONCUR.2015.142</a>.
  ieee: 'J. Kretinsky, K. Larsen, S. Laursen, and J. Srba, “Polynomial time decidability
    of weighted synchronization under partial observability,” presented at the CONCUR:
    Concurrency Theory, Madrid, Spain, 2015, vol. 42, pp. 142–154.'
  ista: 'Kretinsky J, Larsen K, Laursen S, Srba J. 2015. Polynomial time decidability
    of weighted synchronization under partial observability. CONCUR: Concurrency Theory,
    LIPIcs, vol. 42, 142–154.'
  mla: Kretinsky, Jan, et al. <i>Polynomial Time Decidability of Weighted Synchronization
    under Partial Observability</i>. Vol. 42, Schloss Dagstuhl - Leibniz-Zentrum für
    Informatik, 2015, pp. 142–54, doi:<a href="https://doi.org/10.4230/LIPIcs.CONCUR.2015.142">10.4230/LIPIcs.CONCUR.2015.142</a>.
  short: J. Kretinsky, K. Larsen, S. Laursen, J. Srba, in:, Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2015, pp. 142–154.
conference:
  end_date: 2015-09-04
  location: Madrid, Spain
  name: 'CONCUR: Concurrency Theory'
  start_date: 2015-09-01
date_created: 2018-12-11T11:52:22Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2021-01-12T06:51:10Z
day: '01'
ddc:
- '000'
- '003'
department:
- _id: ToHe
- _id: KrCh
doi: 10.4230/LIPIcs.CONCUR.2015.142
ec_funded: 1
file:
- access_level: open_access
  checksum: 49eb5021caafaabe5356c65b9c5f8c9c
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:08:12Z
  date_updated: 2020-07-14T12:44:58Z
  file_id: '4672'
  file_name: IST-2016-498-v1+1_32.pdf
  file_size: 623563
  relation: main_file
file_date_updated: 2020-07-14T12:44:58Z
has_accepted_license: '1'
intvolume: '        42'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 142 - 154
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
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: The Wittgenstein Prize
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '5680'
pubrep_id: '498'
quality_controlled: '1'
scopus_import: 1
status: public
title: Polynomial time decidability of weighted synchronization under partial observability
tmp:
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  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 42
year: '2015'
...
