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Documents authored by Bast, Hannah

Document
Complete Volume
DOI: 10.4230/LIPIcs.ESA.2018
LIPIcs, Volume 112, ESA'18, Complete Volume

Authors: Yossi Azar, Hannah Bast, and Grzegorz Herman

Published in: LIPIcs, Volume 112, 26th Annual European Symposium on Algorithms (ESA 2018)

Abstract
LIPIcs, Volume 112, ESA'18, Complete Volume
Cite as

26th Annual European Symposium on Algorithms (ESA 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 112, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@Proceedings{azar_et_al:LIPIcs.ESA.2018,
  title =	{{LIPIcs, Volume 112, ESA'18, Complete Volume}},
  booktitle =	{26th Annual European Symposium on Algorithms (ESA 2018)},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-081-1},
  ISSN =	{1868-8969},
  year =	{2018},
  volume =	{112},
  editor =	{Azar, Yossi and Bast, Hannah and Herman, Grzegorz},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ESA.2018},
  URN =		{urn:nbn:de:0030-drops-97239},
  doi =		{10.4230/LIPIcs.ESA.2018},
  annote =	{Keywords: Computer systems organization, Single instruction, multiple data, Computing methodologies, Graphics processors, Robotic planning, Hardware}
}
Document
Front Matter
DOI: 10.4230/LIPIcs.ESA.2018.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Yossi Azar, Hannah Bast, and Grzegorz Herman

Published in: LIPIcs, Volume 112, 26th Annual European Symposium on Algorithms (ESA 2018)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

26th Annual European Symposium on Algorithms (ESA 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 112, pp. 0:i-0:xx, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{azar_et_al:LIPIcs.ESA.2018.0,
  author =	{Azar, Yossi and Bast, Hannah and Herman, Grzegorz},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{26th Annual European Symposium on Algorithms (ESA 2018)},
  pages =	{0:i--0:xx},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-081-1},
  ISSN =	{1868-8969},
  year =	{2018},
  volume =	{112},
  editor =	{Azar, Yossi and Bast, Hannah and Herman, Grzegorz},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ESA.2018.0},
  URN =		{urn:nbn:de:0030-drops-94631},
  doi =		{10.4230/LIPIcs.ESA.2018.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
DOI: 10.4230/OASIcs.ATMOS.2013.42
Delay-Robustness of Transfer Patterns in Public Transportation Route Planning

Authors: Hannah Bast, Jonas Sternisko, and Sabine Storandt

Published in: OASIcs, Volume 33, 13th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (2013)

Abstract
Transfer pattern routing is a state-of-the-art speed-up technique for finding optimal paths which minimize multiple cost criteria in public transportation networks. It precomputes sequences of transfer stations along optimal paths. At query time, the optimal paths are searched among the stored transfer patterns, which allows for very fast response times even on very large networks. On the other hand, even a minor change to the timetables may affect many optimal paths, so that, in principle, a new computation of all optimal transfer patterns becomes necessary. In this paper, we examine the robustness of transfer pattern routing towards delay, which is the most common source of such updates. The intuition is that the deviating paths caused by typical updates are already covered by original transfer patterns. We perform experiments which show that the transfer patterns are remarkably robust even to large and many delays, which underlines the applicability and reliability of transfer pattern routing in realistic routing applications.
Cite as

Hannah Bast, Jonas Sternisko, and Sabine Storandt. Delay-Robustness of Transfer Patterns in Public Transportation Route Planning. In 13th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems. Open Access Series in Informatics (OASIcs), Volume 33, pp. 42-54, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{bast_et_al:OASIcs.ATMOS.2013.42,
  author =	{Bast, Hannah and Sternisko, Jonas and Storandt, Sabine},
  title =	{{Delay-Robustness of Transfer Patterns in Public Transportation Route Planning}},
  booktitle =	{13th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems},
  pages =	{42--54},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-58-3},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{33},
  editor =	{Frigioni, Daniele and Stiller, Sebastian},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ATMOS.2013.42},
  URN =		{urn:nbn:de:0030-drops-42434},
  doi =		{10.4230/OASIcs.ATMOS.2013.42},
  annote =	{Keywords: Route planning, public transportation, transfer patterns, delay, robustness}
}
Document
DOI: 10.4230/OASIcs.ATMOS.2013.123
Result Diversity for Multi-Modal Route Planning

Authors: Hannah Bast, Mirko Brodesser, and Sabine Storandt

Published in: OASIcs, Volume 33, 13th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (2013)

Abstract
We study multi-modal route planning allowing arbitrary (meaningful) combinations of public transportation, walking, and taking a car / taxi. In the straightforward model, the number of Pareto-optimal solutions explodes. It turns out that many of them are similar to each other or unreasonable. We introduce a new filtering procedure, Types aNd Thresholds (TNT), which leads to a small yet representative subset of the reasonable paths. We consider metropolitan areas like New York, where a fast computation of the paths is difficult. To reduce the high computation times, optimality-preserving and heuristic approaches are introduced. We experimentally evaluate our approach with respect to result quality and query time. The experiments confirm that our result sets are indeed small (around 5 results per query) and representative (among the reasonable Pareto-optimal paths), and with average query times of about one second or less.
Cite as

Hannah Bast, Mirko Brodesser, and Sabine Storandt. Result Diversity for Multi-Modal Route Planning. In 13th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems. Open Access Series in Informatics (OASIcs), Volume 33, pp. 123-136, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{bast_et_al:OASIcs.ATMOS.2013.123,
  author =	{Bast, Hannah and Brodesser, Mirko and Storandt, Sabine},
  title =	{{Result Diversity for Multi-Modal Route Planning}},
  booktitle =	{13th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems},
  pages =	{123--136},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-58-3},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{33},
  editor =	{Frigioni, Daniele and Stiller, Sebastian},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ATMOS.2013.123},
  URN =		{urn:nbn:de:0030-drops-42494},
  doi =		{10.4230/OASIcs.ATMOS.2013.123},
  annote =	{Keywords: Route Planning, Multi-Modal, Result Diversity}
}
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