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Dagstuhl Reports, Volume 6, Issue 10

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Dagstuhl Seminars 16402, 16411, 16412, 16421, 16431, 16441, 16442

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Complete Issue
DOI: 10.4230/DagRep.6.10
Dagstuhl Reports, Volume 6, Issue 10, September 2016, Complete Issue
Abstract
Dagstuhl Reports, Volume 6, Issue 10, September 2016, Complete Issue
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Dagstuhl Reports, Volume 6, Issue 10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{DagRep.6.10,
  title =	{{Dagstuhl Reports, Volume 6, Issue 10, September 2016, Complete Issue}},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10},
  URN =		{urn:nbn:de:0030-drops-70434},
  doi =		{10.4230/DagRep.6.10},
  annote =	{Keywords: Dagstuhl Reports, Volume 6, Issue 10, September 2016, Complete Issue}
}
Document
Front Matter
DOI: 10.4230/DagRep.6.10.i
Dagstuhl Reports, Table of Contents, Volume 6, Issue 10, 2016
Abstract
Table of Contents, Frontmatter
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Dagstuhl Reports, Volume 6, Issue 10, pp. i-ii, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{DagRep.6.10.i,
  title =	{{Dagstuhl Reports, Table of Contents, Volume 6, Issue 10, 2016}},
  pages =	{i--ii},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.i},
  URN =		{urn:nbn:de:0030-drops-70421},
  doi =		{10.4230/DagRep.6.10.i},
  annote =	{Keywords: Dagstuhl Reports, Table of Contents, Volume 6, Issue 10, 2016}
}
Document
DOI: 10.4230/DagRep.6.10.1
Programming Language Techniques for Incremental and Reactive Computing (Dagstuhl Seminar 16402)

Authors: Camil Demetrescu, Sebastian Erdweg, Matthew A. Hammer, and Shriram Krishnamurthi

Abstract
Incremental computations are those that process input changes faster than naive computation that runs from scratch, and reactive computations consist of interactive behavior that varies over time. Due to the importance and prevalence of incremental, reactive systems, ad hoc variants of incremental and reactive computation are ubiquitous in modern software systems. In response to this reality, the PL research community has worked for several decades to advance new languages for systems that interface with a dynamically-changing environment. In this space, researchers propose new general-purpose languages and algorithms to express and implement efficient, dynamic behavior, in the form of incremental and reactive language systems. While these research lines continue to develop successfully, this work lacks a shared community that synthesizes a collective discussion about common motivations, alternative techniques, current results and future challenges. To overcome this lack of community, this seminar will work towards building one, by strengthening existing research connections and by forging new ones. Developing a shared culture is critical to the future advancement of incremental and reactive computing in modern PL research, and in turn, this PL research is critical to developing the efficient, understandable interactive systems of the future.
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Camil Demetrescu, Sebastian Erdweg, Matthew A. Hammer, and Shriram Krishnamurthi. Programming Language Techniques for Incremental and Reactive Computing (Dagstuhl Seminar 16402). In Dagstuhl Reports, Volume 6, Issue 10, pp. 1-12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{demetrescu_et_al:DagRep.6.10.1,
  author =	{Demetrescu, Camil and Erdweg, Sebastian and Hammer, Matthew A. and Krishnamurthi, Shriram},
  title =	{{Programming Language Techniques for Incremental and Reactive Computing (Dagstuhl Seminar 16402)}},
  pages =	{1--12},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  editor =	{Demetrescu, Camil and Erdweg, Sebastian and Hammer, Matthew A. and Krishnamurthi, Shriram},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.1},
  URN =		{urn:nbn:de:0030-drops-69491},
  doi =		{10.4230/DagRep.6.10.1},
  annote =	{Keywords: Incremental computing, reactive programming, memoization, change propagation, dynamic dependency graph, dataflow programming, live programming}
}
Document
DOI: 10.4230/DagRep.6.10.13
Algebraic Methods in Computational Complexity (Dagstuhl Seminar 16411)

Authors: Valentine Kabanets, Thomas Thierauf, Jacobo Tóran, and Christopher Umans

Abstract
Computational Complexity is concerned with the resources that are required for algorithms to detect properties of combinatorial objects and structures. It has often proven true that the best way to argue about these combinatorial objects is by establishing a connection (perhaps approximate) to a more well-behaved algebraic setting. Indeed, many of the deepest and most powerful results in Computational Complexity rely on algebraic proof techniques. The Razborov-Smolensky polynomial-approximation method for proving constant-depth circuit lower bounds, the PCP characterization of NP, and the Agrawal-Kayal-Saxena polynomial-time primality test are some of the most prominent examples. The algebraic theme continues in some of the most exciting recent progress in computational complexity. There have been significant recent advances in algebraic circuit lower bounds, and the so-called chasm at depth 4 suggests that the restricted models now being considered are not so far from ones that would lead to a general result. There have been similar successes concerning the related problems of polynomial identity testing and circuit reconstruction in the algebraic model (and these are tied to central questions regarding the power of randomness in computation). Another surprising connection is that the algebraic techniques invented to show lower bounds now prove useful to develop efficient algorithms. For example, Williams showed how to use the polynomial method to obtain faster all-pair-shortest-path algorithms. This emphases once again the central role of algebra in computer science. The seminar aims to capitalize on recent progress and bring together researchers who are using a diverse array of algebraic methods in a variety of settings. Researchers in these areas are relying on ever more sophisticated and specialized mathematics and this seminar can play an important role in educating a diverse community about the latest new techniques, spurring further progress.
Cite as

Valentine Kabanets, Thomas Thierauf, Jacobo Tóran, and Christopher Umans. Algebraic Methods in Computational Complexity (Dagstuhl Seminar 16411). In Dagstuhl Reports, Volume 6, Issue 10, pp. 13-32, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{kabanets_et_al:DagRep.6.10.13,
  author =	{Kabanets, Valentine and Thierauf, Thomas and T\'{o}ran, Jacobo and Umans, Christopher},
  title =	{{Algebraic Methods in Computational Complexity (Dagstuhl Seminar 16411)}},
  pages =	{13--32},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  editor =	{Kabanets, Valentine and Thierauf, Thomas and T\'{o}ran, Jacobo and Umans, Christopher},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.13},
  URN =		{urn:nbn:de:0030-drops-69504},
  doi =		{10.4230/DagRep.6.10.13},
  annote =	{Keywords: Computational Complexity, lower bounds, approximation, pseudo-randomness, derandomization, circuits}
}
Document
DOI: 10.4230/DagRep.6.10.33
Automated Algorithm Selection and Configuration (Dagstuhl Seminar 16412)

Authors: Holger H. Hoos, Frank Neumann, and Heike Trautmann

Abstract
This report documents the programme and the outcomes of Dagstuhl Seminar 16412 "Automated Algorithm Selection and Configuration", which was held October 9--14, 2016 and attended by 34 experts from 10 countries. Research on automated algorithm selection and configuration has lead to some of the most impressive successes within the broader area of empirical algorithmics, and has proven to be highly relevant to industrial applications. Specifically, high-performance algorithms for cnp-hard problems, such as propositional satisfiability (SAT) and mixed integer programming (MIP), are known to have a huge impact on sectors such as manufacturing, logistics, healthcare, finance, agriculture and energy systems, and algorithm selection and configuration techniques have been demonstrated to achieve substantial improvements in the performance of solvers for these problems. Apart from creating synergy through close interaction between the world's leading groups in the area, the seminar pursued two major goals: to promote and develop deeper understanding of the behaviour of algorithm selection and configuration techniques and to lay the groundwork for further improving their efficacy. Towards these ends, the organisation team brought together a group of carefully chosen researchers with strong expertise in computer science, statistics, mathematics, economics and engineering; a particular emphasis was placed on bringing together theorists, empiricists and experts from various application areas, with the goal of closing the gap between theory and practice.
Cite as

Holger H. Hoos, Frank Neumann, and Heike Trautmann. Automated Algorithm Selection and Configuration (Dagstuhl Seminar 16412). In Dagstuhl Reports, Volume 6, Issue 10, pp. 33-74, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{hoos_et_al:DagRep.6.10.33,
  author =	{Hoos, Holger H. and Neumann, Frank and Trautmann, Heike},
  title =	{{Automated Algorithm Selection and Configuration (Dagstuhl Seminar 16412)}},
  pages =	{33--74},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  editor =	{Hoos, Holger H. and Neumann, Frank and Trautmann, Heike},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.33},
  URN =		{urn:nbn:de:0030-drops-69569},
  doi =		{10.4230/DagRep.6.10.33},
  annote =	{Keywords: algorithm configuration, algorithm selection, features, machine learning, optimisation, performance prediction}
}
Document
DOI: 10.4230/DagRep.6.10.75
Universality of Proofs (Dagstuhl Seminar 16421)

Authors: Gilles Dowek, Catherine Dubois, Brigitte Pientka, and Florian Rabe

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 16421 "Universality of Proofs" which took place October 16-21, 2016. The seminar was motivated by the fact that it is nowadays difficult to exchange proofs from one proof assistant to another one. Thus a formal proof cannot be considered as a universal proof, reusable in different contexts. The seminar aims at providing a comprehensive overview of the existing techniques for interoperability and going further into the development of a common objective and framework for proof developments that support the communication, reuse and interoperability of proofs. The seminar included participants coming from different fields of computer science such as logic, proof engineering, program verification, formal mathematics. It included overview talks, technical talks and breakout sessions. This report collects the abstracts of talks and summarizes the outcomes of the breakout sessions.
Cite as

Gilles Dowek, Catherine Dubois, Brigitte Pientka, and Florian Rabe. Universality of Proofs (Dagstuhl Seminar 16421). In Dagstuhl Reports, Volume 6, Issue 10, pp. 75-98, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{dowek_et_al:DagRep.6.10.75,
  author =	{Dowek, Gilles and Dubois, Catherine and Pientka, Brigitte and Rabe, Florian},
  title =	{{Universality of Proofs (Dagstuhl Seminar 16421)}},
  pages =	{75--98},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  editor =	{Dowek, Gilles and Dubois, Catherine and Pientka, Brigitte and Rabe, Florian},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.75},
  URN =		{urn:nbn:de:0030-drops-69514},
  doi =		{10.4230/DagRep.6.10.75},
  annote =	{Keywords: Formal proofs, Interoperability, Logical frameworks, Logics, Proof formats, Provers, Reusability}
}
Document
DOI: 10.4230/DagRep.6.10.99
Computation over Compressed Structured Data (Dagstuhl Seminar 16431)

Authors: Philip Bille, Markus Lohrey, Sebastian Maneth, and Gonzalo Navarro

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 16431 "Computation over Compressed Structured Data".
Cite as

Philip Bille, Markus Lohrey, Sebastian Maneth, and Gonzalo Navarro. Computation over Compressed Structured Data (Dagstuhl Seminar 16431). In Dagstuhl Reports, Volume 6, Issue 10, pp. 99-119, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{bille_et_al:DagRep.6.10.99,
  author =	{Bille, Philip and Lohrey, Markus and Maneth, Sebastian and Navarro, Gonzalo},
  title =	{{Computation over Compressed Structured Data (Dagstuhl Seminar 16431)}},
  pages =	{99--119},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  editor =	{Bille, Philip and Lohrey, Markus and Maneth, Sebastian and Navarro, Gonzalo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.99},
  URN =		{urn:nbn:de:0030-drops-69521},
  doi =		{10.4230/DagRep.6.10.99},
  annote =	{Keywords: algorithms on compressed structures, data compression, indexing, straight- line programs}
}
Document
DOI: 10.4230/DagRep.6.10.120
Adaptive Isolation for Predictability and Security (Dagstuhl Seminar 16441)

Authors: Tulika Mitra, Jürgen Teich, and Lothar Thiele

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 16441 "Adaptive Isolation for Predictability and Security". Semiconductor technology is at the verge of integrating hundreds of processor cores on a single device. Indeed, affordable multi-processor system-on-a-chip (MPSoC) technology is becoming available. It is already heavily used for acceleration of applications from domains of graphics, gaming (e.g., GPUs) and high performance computing (e.g., Xeon Phi). The potential of MPSoCs is yet to explode for novel application areas of embedded and cyber-physical systems such as the domains of automotive (e.g., driver assistance systems), industrial automation and avionics where non-functional aspects of program execution must be enforceable. Instead of best-effort and average performance, these real-time applications demand timing predictability and/or security levels specifiable on a per-application basis. Therefore the cross-cutting topics of the seminar were methods for temporal and spatial isolation. These methods were discussed for their capabilities to enforce the above non-functional properties without sacrificing any efficiency or resource utilization. To be able to provide isolation instantaneously, e.g., even for just segments of a program under execution, adaptivity is essential at all hardware- and software layers. Support for adaptivity was the second focal aspect of the seminar. Here, virtualization and new adaptive resource reservation protocols were discussed and analyzed for their capabilities to provide application/job-wise predictable program execution qualities on demand at some costs and overheads. If the overhead can be kept low, there is a chance that adaptive isolation, the title of the seminar, may enable the adoption of MPSoC technology for many new application areas of embedded systems.
Cite as

Tulika Mitra, Jürgen Teich, and Lothar Thiele. Adaptive Isolation for Predictability and Security (Dagstuhl Seminar 16441). In Dagstuhl Reports, Volume 6, Issue 10, pp. 120-153, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{mitra_et_al:DagRep.6.10.120,
  author =	{Mitra, Tulika and Teich, J\"{u}rgen and Thiele, Lothar},
  title =	{{Adaptive Isolation for Predictability and Security (Dagstuhl Seminar 16441)}},
  pages =	{120--153},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  editor =	{Mitra, Tulika and Teich, J\"{u}rgen and Thiele, Lothar},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.120},
  URN =		{urn:nbn:de:0030-drops-69539},
  doi =		{10.4230/DagRep.6.10.120},
  annote =	{Keywords: Adaptive isolation, Embedded systems, Real-Time systems, Predictability, Security, MPSoC, Parallel computing, Programming models, Timing analysis, Virtualization}
}
Document
DOI: 10.4230/DagRep.6.10.154
Vocal Interactivity in-and-between Humans, Animals and Robots (VIHAR) (Dagstuhl Seminar 16442)

Authors: Roger K. Moore, Serge Thill, and Ricard Marxer

Abstract
This seminar was held in late 2016 and brought together, for the first time, researchers studying vocal interaction in a variety of different domains covering communications between all possible combinations of humans, animals, and robots. While each of these sub-domains has extensive histories of research progress, there is much potential for cross-fertilisation that currently remains underexplored. This seminar aimed at bridging this gap. In this report, we present the nascent research field of VIHAR and the major outputs from our seminar in the form of prioritised open research questions, abstracts from stimulus talks given by prominent researchers in their respective fields, and open problem statements by all participants.
Cite as

Roger K. Moore, Serge Thill, and Ricard Marxer. Vocal Interactivity in-and-between Humans, Animals and Robots (VIHAR) (Dagstuhl Seminar 16442). In Dagstuhl Reports, Volume 6, Issue 10, pp. 154-194, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{moore_et_al:DagRep.6.10.154,
  author =	{Moore, Roger K. and Thill, Serge and Marxer, Ricard},
  title =	{{Vocal Interactivity in-and-between Humans, Animals and Robots (VIHAR) (Dagstuhl Seminar 16442)}},
  pages =	{154--194},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{10},
  editor =	{Moore, Roger K. and Thill, Serge and Marxer, Ricard},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.6.10.154},
  URN =		{urn:nbn:de:0030-drops-69718},
  doi =		{10.4230/DagRep.6.10.154},
  annote =	{Keywords: animal calls, human-robot interaction, language evolution, language universals, speech technology, spoken language, vocal expression, vocal interaction, vocal learning}
}

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  • Bille, Philip
  • D
  • Demetrescu, Camil
  • Dowek, Gilles
  • Dubois, Catherine
  • E
  • Erdweg, Sebastian
  • H
  • Hammer, Matthew A.
  • Hoos, Holger H.
  • K
  • Kabanets, Valentine
  • Krishnamurthi, Shriram
  • L
  • Lohrey, Markus
  • M
  • Maneth, Sebastian
  • Marxer, Ricard
  • Mitra, Tulika
  • Moore, Roger K.
  • N
  • Navarro, Gonzalo
  • Neumann, Frank
  • P
  • Pientka, Brigitte
  • R
  • Rabe, Florian
  • T
  • Teich, Jürgen
  • Thiele, Lothar
  • Thierauf, Thomas
  • Thill, Serge
  • Tóran, Jacobo
  • Trautmann, Heike
  • U
  • Umans, Christopher

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