3 Search Results for "Ben-David, Shai"


Document
Randomly Coloring Graphs of Logarithmically Bounded Pathwidth

Authors: Shai Vardi

Published in: LIPIcs, Volume 116, Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2018)


Abstract
We consider the problem of sampling a proper k-coloring of a graph of maximal degree Delta uniformly at random. We describe a new Markov chain for sampling colorings, and show that it mixes rapidly on graphs of logarithmically bounded pathwidth if k >=(1+epsilon)Delta, for any epsilon>0, using a hybrid paths argument.

Cite as

Shai Vardi. Randomly Coloring Graphs of Logarithmically Bounded Pathwidth. In Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 116, pp. 57:1-57:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)


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@InProceedings{vardi:LIPIcs.APPROX-RANDOM.2018.57,
  author =	{Vardi, Shai},
  title =	{{Randomly Coloring Graphs of Logarithmically Bounded Pathwidth}},
  booktitle =	{Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2018)},
  pages =	{57:1--57:19},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-085-9},
  ISSN =	{1868-8969},
  year =	{2018},
  volume =	{116},
  editor =	{Blais, Eric and Jansen, Klaus and D. P. Rolim, Jos\'{e} and Steurer, David},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.APPROX-RANDOM.2018.57},
  URN =		{urn:nbn:de:0030-drops-94618},
  doi =		{10.4230/LIPIcs.APPROX-RANDOM.2018.57},
  annote =	{Keywords: Random coloring, Glauber dynamics, Markov-chain Monte Carlo}
}
Document
Foundations of Unsupervised Learning (Dagstuhl Seminar 16382)

Authors: Maria-Florina Balcan, Shai Ben-David, Ruth Urner, and Ulrike von Luxburg

Published in: Dagstuhl Reports, Volume 6, Issue 9 (2017)


Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 16382 "Foundations of Unsupervised Learning". Unsupervised learning techniques are frequently used in practice of data analysis. However, there is currently little formal guidance as to how, when and to what effect to use which unsupervised learning method. The goal of the seminar was to initiate a broader and more systematic research on the foundations of unsupervised learning with the ultimate aim to provide more support to practitioners. The seminar brought together academic researchers from the fields of theoretical computer science and statistics as well as some researchers from industry.

Cite as

Maria-Florina Balcan, Shai Ben-David, Ruth Urner, and Ulrike von Luxburg. Foundations of Unsupervised Learning (Dagstuhl Seminar 16382). In Dagstuhl Reports, Volume 6, Issue 9, pp. 94-109, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)


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@Article{balcan_et_al:DagRep.6.9.94,
  author =	{Balcan, Maria-Florina and Ben-David, Shai and Urner, Ruth and von Luxburg, Ulrike},
  title =	{{Foundations of Unsupervised Learning (Dagstuhl Seminar 16382)}},
  pages =	{94--109},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2017},
  volume =	{6},
  number =	{9},
  editor =	{Balcan, Maria-Florina and Ben-David, Shai and Urner, Ruth and von Luxburg, Ulrike},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagRep.6.9.94},
  URN =		{urn:nbn:de:0030-drops-69542},
  doi =		{10.4230/DagRep.6.9.94},
  annote =	{Keywords: Machine learning, theory of computing, unsupervised learning, representation learning}
}
Document
Invited Talk
How Far Are We From Having a Satisfactory Theory of Clustering? (Invited Talk)

Authors: Shai Ben-David

Published in: LIPIcs, Volume 58, 41st International Symposium on Mathematical Foundations of Computer Science (MFCS 2016)


Abstract
This is an overview of the invited talk delivered at the 41st International Symposium on Mathematical Foundations of Computer Science (MFCS-2016).

Cite as

Shai Ben-David. How Far Are We From Having a Satisfactory Theory of Clustering? (Invited Talk). In 41st International Symposium on Mathematical Foundations of Computer Science (MFCS 2016). Leibniz International Proceedings in Informatics (LIPIcs), Volume 58, p. 1:1, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)


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@InProceedings{bendavid:LIPIcs.MFCS.2016.1,
  author =	{Ben-David, Shai},
  title =	{{How Far Are We From Having a Satisfactory Theory of Clustering?}},
  booktitle =	{41st International Symposium on Mathematical Foundations of Computer Science (MFCS 2016)},
  pages =	{1:1--1:1},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-016-3},
  ISSN =	{1868-8969},
  year =	{2016},
  volume =	{58},
  editor =	{Faliszewski, Piotr and Muscholl, Anca and Niedermeier, Rolf},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.MFCS.2016.1},
  URN =		{urn:nbn:de:0030-drops-65078},
  doi =		{10.4230/LIPIcs.MFCS.2016.1},
  annote =	{Keywords: clustering, theory, algorithm tuning, computational complexity}
}
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