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Documents authored by Böttcher, Stefan


Document
08261 Abstracts Collection – Structure-Based Compression of Complex Massive Data

Authors: Stefan Böttcher, Markus Lohrey, Sebastian Maneth, and Wojciech Rytter

Published in: Dagstuhl Seminar Proceedings, Volume 8261, Structure-Based Compression of Complex Massive Data (2008)


Abstract
From June 22, 2008 to June 27, 2008 the Dagstuhl Seminar 08261 ``Structure-Based Compression of Complex Massive Data'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.

Cite as

Stefan Böttcher, Markus Lohrey, Sebastian Maneth, and Wojciech Rytter. 08261 Abstracts Collection – Structure-Based Compression of Complex Massive Data. In Structure-Based Compression of Complex Massive Data. Dagstuhl Seminar Proceedings, Volume 8261, pp. 1-9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)


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@InProceedings{bottcher_et_al:DagSemProc.08261.1,
  author =	{B\"{o}ttcher, Stefan and Lohrey, Markus and Maneth, Sebastian and Rytter, Wojciech},
  title =	{{08261 Abstracts Collection – Structure-Based Compression of Complex Massive Data}},
  booktitle =	{Structure-Based Compression of Complex Massive Data},
  pages =	{1--9},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8261},
  editor =	{Stefan B\"{o}ttcher and Markus Lohrey and Sebastian Maneth and Wojcieh Rytter},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08261.1},
  URN =		{urn:nbn:de:0030-drops-16948},
  doi =		{10.4230/DagSemProc.08261.1},
  annote =	{Keywords: Data compression, algorithms for compressed strings and trees, XML-compression}
}
Document
08261 Executive Summary – Structure-Based Compression of Complex Massive Data

Authors: Stefan Böttcher, Markus Lohrey, Sebastian Maneth, and Wojciech Rytter

Published in: Dagstuhl Seminar Proceedings, Volume 8261, Structure-Based Compression of Complex Massive Data (2008)


Abstract
From 22nd June to 27th of June 2008, the Dagstuhl Seminar ``08261 Structure-Based Compression of Complex Massive Data'' took place at the Conference and Research Center (IBFI) in Dagstuhl. 22 researchers with interests in theory and application of compression and computation on compressed structures met to present their current work and to discuss future directions.

Cite as

Stefan Böttcher, Markus Lohrey, Sebastian Maneth, and Wojciech Rytter. 08261 Executive Summary – Structure-Based Compression of Complex Massive Data. In Structure-Based Compression of Complex Massive Data. Dagstuhl Seminar Proceedings, Volume 8261, pp. 1-4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)


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@InProceedings{bottcher_et_al:DagSemProc.08261.2,
  author =	{B\"{o}ttcher, Stefan and Lohrey, Markus and Maneth, Sebastian and Rytter, Wojciech},
  title =	{{08261 Executive Summary – Structure-Based Compression of Complex Massive Data}},
  booktitle =	{Structure-Based Compression of Complex Massive Data},
  pages =	{1--4},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8261},
  editor =	{Stefan B\"{o}ttcher and Markus Lohrey and Sebastian Maneth and Wojcieh Rytter},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08261.2},
  URN =		{urn:nbn:de:0030-drops-16814},
  doi =		{10.4230/DagSemProc.08261.2},
  annote =	{Keywords: Compression, Succinct Data Structure, Pattern Matching, Text Search, XML Query}
}
Document
06431 Abstracts Collection – Scalable Data Management in Evolving Networks

Authors: Stefan Böttcher, Le Gruenwald, Pedro Jose Marrón, and Evaggelia Pitoura

Published in: Dagstuhl Seminar Proceedings, Volume 6431, Scalable Data Management in Evolving Networks (2007)


Abstract
From 22.10.06 to 27.10.06, the Dagstuhl Seminar 06431 ``Scalable Data Management in Evolving Networks'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.

Cite as

Stefan Böttcher, Le Gruenwald, Pedro Jose Marrón, and Evaggelia Pitoura. 06431 Abstracts Collection – Scalable Data Management in Evolving Networks. In Scalable Data Management in Evolving Networks. Dagstuhl Seminar Proceedings, Volume 6431, pp. 1-16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)


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@InProceedings{bottcher_et_al:DagSemProc.06431.1,
  author =	{B\"{o}ttcher, Stefan and Gruenwald, Le and Marr\'{o}n, Pedro Jose and Pitoura, Evaggelia},
  title =	{{06431 Abstracts Collection – Scalable Data Management in Evolving Networks}},
  booktitle =	{Scalable Data Management in Evolving Networks},
  pages =	{1--16},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6431},
  editor =	{Stefan B\"{o}ttcher and Le Gruenwald and Pedro Jose Marr\'{o}n and Evaggelia Pitoura},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06431.1},
  URN =		{urn:nbn:de:0030-drops-9557},
  doi =		{10.4230/DagSemProc.06431.1},
  annote =	{Keywords: Data management, mobile ad-hoc networks, p2p systems, sensor networks}
}
Document
06431 Summary – Scalable Data Management in Evolving Networks"

Authors: Stefan Böttcher, Le Gruenwald, Pedro Jose Marrón, and Evaggelia Pitoura

Published in: Dagstuhl Seminar Proceedings, Volume 6431, Scalable Data Management in Evolving Networks (2007)


Abstract
Network technologies like mobile ad-hoc networks, peer-to-peer systems, and sensor networks are getting increasingly popular, but come up with new challenges to scalable data management because data management techniques developed for fixed-wired networks that usually depend on reliable and stable networks can not directly be used. The goal of this Dagstuhl Seminar was to identify common challenges in these popular network technologies problems, and to get a better understanding of the generality and applicability of solutions to the major problems in scalable data management in these areas.

Cite as

Stefan Böttcher, Le Gruenwald, Pedro Jose Marrón, and Evaggelia Pitoura. 06431 Summary – Scalable Data Management in Evolving Networks". In Scalable Data Management in Evolving Networks. Dagstuhl Seminar Proceedings, Volume 6431, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)


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@InProceedings{bottcher_et_al:DagSemProc.06431.2,
  author =	{B\"{o}ttcher, Stefan and Gruenwald, Le and Marr\'{o}n, Pedro Jose and Pitoura, Evaggelia},
  title =	{{06431 Summary – Scalable Data Management in Evolving Networks"}},
  booktitle =	{Scalable Data Management in Evolving Networks},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6431},
  editor =	{Stefan B\"{o}ttcher and Le Gruenwald and Pedro Jose Marr\'{o}n and Evaggelia Pitoura},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06431.2},
  URN =		{urn:nbn:de:0030-drops-9478},
  doi =		{10.4230/DagSemProc.06431.2},
  annote =	{Keywords: Peer-to-peer, mobile ad-hoc, and sensor networks, atomic transactions, P2P databases}
}
Document
06431 Working Group Summary: Atomicity in Mobile Networks

Authors: Sebastian Obermeier, Joos-Hendrik Böse, Stefan Böttcher, Panos Kypros Chrysanthis, Alex Delis, Le Gruenwald, Anirban Mondal, Aris Ouksel, George Samaras, and Stratis Viglas

Published in: Dagstuhl Seminar Proceedings, Volume 6431, Scalable Data Management in Evolving Networks (2007)


Abstract
We introduce different mobile network applications and show to which degree the concept of database transactions is required within the applications. We show properties of transaction processing and explain which properties are important for each of the mobile applications. Furthermore, we discuss open questions regarding transaction processing in mobile networks and identify open problems for further research.

Cite as

Sebastian Obermeier, Joos-Hendrik Böse, Stefan Böttcher, Panos Kypros Chrysanthis, Alex Delis, Le Gruenwald, Anirban Mondal, Aris Ouksel, George Samaras, and Stratis Viglas. 06431 Working Group Summary: Atomicity in Mobile Networks. In Scalable Data Management in Evolving Networks. Dagstuhl Seminar Proceedings, Volume 6431, pp. 1-5, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)


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@InProceedings{obermeier_et_al:DagSemProc.06431.4,
  author =	{Obermeier, Sebastian and B\"{o}se, Joos-Hendrik and B\"{o}ttcher, Stefan and Chrysanthis, Panos Kypros and Delis, Alex and Gruenwald, Le and Mondal, Anirban and Ouksel, Aris and Samaras, George and Viglas, Stratis},
  title =	{{06431 Working Group Summary: Atomicity in Mobile Networks}},
  booktitle =	{Scalable Data Management in Evolving Networks},
  pages =	{1--5},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6431},
  editor =	{Stefan B\"{o}ttcher and Le Gruenwald and Pedro Jose Marr\'{o}n and Evaggelia Pitoura},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06431.4},
  URN =		{urn:nbn:de:0030-drops-9521},
  doi =		{10.4230/DagSemProc.06431.4},
  annote =	{Keywords: Mobile ad noc networks, mobile databases, mobile transactions, atomicity}
}
Document
06431 Working Group Summary: P2P, Ad Hoc and Sensor Networks – All the Different or All the Same?

Authors: Peter A. Boncz, Angela Bonifati, Joos-Hendrik Böse, Stefan Böttcher, Panos Kypros Chrysanthis, Le Gruenwald, Arantza Illarramendi, Peter Janacik, Birgitta König-Ries, Wolfgang May, Anirban Mondal, Sebastian Obermeier, Aris Ouksel, and George Samaras

Published in: Dagstuhl Seminar Proceedings, Volume 6431, Scalable Data Management in Evolving Networks (2007)


Abstract
Currently, data management technologies are in the process of finding their way into evolving networks, i.e. P2P, ad hoc and wireless sensor networks. We examine the properties, differences and commonalities of the different types of evolving networks, in order to enable the development of adequate technologies suiting their characteristics. We start with presenting definitions for the different network types, before arranging them in a network hierarchy, to gain a clear view of the area. Then, we analyze and compare the example applications for each of the types using different design dimensions. Based on this work, we finally present a comparison of P2P, ad hoc and wireless sensor networks.

Cite as

Peter A. Boncz, Angela Bonifati, Joos-Hendrik Böse, Stefan Böttcher, Panos Kypros Chrysanthis, Le Gruenwald, Arantza Illarramendi, Peter Janacik, Birgitta König-Ries, Wolfgang May, Anirban Mondal, Sebastian Obermeier, Aris Ouksel, and George Samaras. 06431 Working Group Summary: P2P, Ad Hoc and Sensor Networks – All the Different or All the Same?. In Scalable Data Management in Evolving Networks. Dagstuhl Seminar Proceedings, Volume 6431, pp. 1-7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)


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@InProceedings{boncz_et_al:DagSemProc.06431.5,
  author =	{Boncz, Peter A. and Bonifati, Angela and B\"{o}se, Joos-Hendrik and B\"{o}ttcher, Stefan and Chrysanthis, Panos Kypros and Gruenwald, Le and Illarramendi, Arantza and Janacik, Peter and K\"{o}nig-Ries, Birgitta and May, Wolfgang and Mondal, Anirban and Obermeier, Sebastian and Ouksel, Aris and Samaras, George},
  title =	{{06431 Working Group Summary: P2P, Ad Hoc and Sensor Networks – All the Different or All the Same?}},
  booktitle =	{Scalable Data Management in Evolving Networks},
  pages =	{1--7},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6431},
  editor =	{Stefan B\"{o}ttcher and Le Gruenwald and Pedro Jose Marr\'{o}n and Evaggelia Pitoura},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06431.5},
  URN =		{urn:nbn:de:0030-drops-9514},
  doi =		{10.4230/DagSemProc.06431.5},
  annote =	{Keywords: P2P, ad hoc, wireless sensor networks, database systems}
}
Document
Secure Multi-Party Data Management

Authors: Stefan Böttcher

Published in: Dagstuhl Seminar Proceedings, Volume 6431, Scalable Data Management in Evolving Networks (2007)


Abstract
As data and information is stored, combined and accessed almost everywhere, in-formation security and privacy becomes increasingly important to companies that offer access to data. In comparison to network and hardware security that often focus on the protection of network or hardware from attackers from the outside, information security involves protection of certain information from users that have at least some access rights "inside" an information system. One key challenge in information secu-rity and privacy is to meet two contrary goals at the same time, i.e. to allow users to run applications which access the data that they need, but to prevent the same users from being able to infer sensitive information from the results returned by the appli-cation. While cryptography may be used as a supporting technology, the focus of our re-search at the University of Paderborn is to solve problems of information security and privacy. Our research involves different aspects of information security and privacy, e.g. access control, policies, key management, role management, inference control, detection of privacy leaks, sovereign information sharing and anonymous union com-putation. Although there are many great contributions to these problems by other groups in the community, within this paper, we focus on the research contributions by our group in Paderborn.

Cite as

Stefan Böttcher. Secure Multi-Party Data Management. In Scalable Data Management in Evolving Networks. Dagstuhl Seminar Proceedings, Volume 6431, pp. 1-4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)


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@InProceedings{bottcher:DagSemProc.06431.8,
  author =	{B\"{o}ttcher, Stefan},
  title =	{{Secure Multi-Party Data Management}},
  booktitle =	{Scalable Data Management in Evolving Networks},
  pages =	{1--4},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6431},
  editor =	{Stefan B\"{o}ttcher and Le Gruenwald and Pedro Jose Marr\'{o}n and Evaggelia Pitoura},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06431.8},
  URN =		{urn:nbn:de:0030-drops-9481},
  doi =		{10.4230/DagSemProc.06431.8},
  annote =	{Keywords: Information security, privacy, and access control; sovereign information sharing; XML and XPath}
}
Document
Optimized XML Data Management for Mobile Transactions

Authors: Stefan Böttcher

Published in: Dagstuhl Seminar Proceedings, Volume 4441, Mobile Information Management (2005)


Abstract
This paper summarizes the research issues in the area of XML data management and mobile transactions performed at the University of Paderborn. We shortly describe the problems worked at and the basic solution ideas, and we refer to the further literature that provides detailed descriptions of the elaborated solutions.

Cite as

Stefan Böttcher. Optimized XML Data Management for Mobile Transactions. In Mobile Information Management. Dagstuhl Seminar Proceedings, Volume 4441, pp. 1-4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)


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@InProceedings{bottcher:DagSemProc.04441.12,
  author =	{B\"{o}ttcher, Stefan},
  title =	{{Optimized XML Data Management for Mobile Transactions}},
  booktitle =	{Mobile Information Management},
  pages =	{1--4},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{4441},
  editor =	{Margaret H. Dunham and Birgitta K\"{o}nig-Ries and Evaggelia Pitoura and Peter Reiher and Can T\"{u}rker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.04441.12},
  URN =		{urn:nbn:de:0030-drops-2680},
  doi =		{10.4230/DagSemProc.04441.12},
  annote =	{Keywords: XML, query optimization, mobile transactions}
}
Document
04441 Working Group - Some Open Aspects of Mobile Ad-hoc NETwork, Peer-to-Peer, and Self-organizing Systems

Authors: Joos-Hendrik Böse, Stefan Böttcher, Le Gruenwald, Pedro Jóse Marrón, Philipp Obreiter, Evaggelia Pitoura, Peter Reiher, Kai-Uwe Sattler, and Frank Seliger

Published in: Dagstuhl Seminar Proceedings, Volume 4441, Mobile Information Management (2005)


Abstract
This document summarizes the results of the working group discussion on Mobile Ad-hoc NETworks (MANETs), peer-to-peer (p2p) and self-organizing systems held at the workshop on Mobile Information Management in October 2

Cite as

Joos-Hendrik Böse, Stefan Böttcher, Le Gruenwald, Pedro Jóse Marrón, Philipp Obreiter, Evaggelia Pitoura, Peter Reiher, Kai-Uwe Sattler, and Frank Seliger. 04441 Working Group - Some Open Aspects of Mobile Ad-hoc NETwork, Peer-to-Peer, and Self-organizing Systems. In Mobile Information Management. Dagstuhl Seminar Proceedings, Volume 4441, pp. 1-4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)


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@InProceedings{bose_et_al:DagSemProc.04441.3,
  author =	{B\"{o}se, Joos-Hendrik and B\"{o}ttcher, Stefan and Gruenwald, Le and Marr\'{o}n, Pedro J\'{o}se and Obreiter, Philipp and Pitoura, Evaggelia and Reiher, Peter and Sattler, Kai-Uwe and Seliger, Frank},
  title =	{{04441 Working Group - Some Open Aspects of Mobile Ad-hoc NETwork, Peer-to-Peer, and Self-organizing Systems}},
  booktitle =	{Mobile Information Management},
  pages =	{1--4},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{4441},
  editor =	{Margaret H. Dunham and Birgitta K\"{o}nig-Ries and Evaggelia Pitoura and Peter Reiher and Can T\"{u}rker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.04441.3},
  URN =		{urn:nbn:de:0030-drops-2171},
  doi =		{10.4230/DagSemProc.04441.3},
  annote =	{Keywords: MANET, P2P}
}
Document
04441 Working Group – Research Issues in Mobile Transactions

Authors: Joos-Hendrik Böse, Stefan Böttcher, Le Gruenwald, Evaggelia Pitoura, Peter Reiher, George Samaras, Thomas Schwarz, and Can Türker

Published in: Dagstuhl Seminar Proceedings, Volume 4441, Mobile Information Management (2005)


Abstract
This document discusses three scenarios for databases with mobile clients, summarizes typical applications and requirements for each of the three scenarios, and outlines the open research issues which should be solved within each of the three scenarios. While the first scenario consists of mobile clients that are connect to a wired network, the second scenario consists of a network of mobile clients with a single-hop distance to each other but without a wired network, and the third scenario considers a network of mobile clients some of which are in multi-hop distance.

Cite as

Joos-Hendrik Böse, Stefan Böttcher, Le Gruenwald, Evaggelia Pitoura, Peter Reiher, George Samaras, Thomas Schwarz, and Can Türker. 04441 Working Group – Research Issues in Mobile Transactions. In Mobile Information Management. Dagstuhl Seminar Proceedings, Volume 4441, pp. 1-7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)


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@InProceedings{bose_et_al:DagSemProc.04441.7,
  author =	{B\"{o}se, Joos-Hendrik and B\"{o}ttcher, Stefan and Gruenwald, Le and Pitoura, Evaggelia and Reiher, Peter and Samaras, George and Schwarz, Thomas and T\"{u}rker, Can},
  title =	{{04441 Working Group – Research Issues in Mobile Transactions}},
  booktitle =	{Mobile Information Management},
  pages =	{1--7},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{4441},
  editor =	{Margaret H. Dunham and Birgitta K\"{o}nig-Ries and Evaggelia Pitoura and Peter Reiher and Can T\"{u}rker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.04441.7},
  URN =		{urn:nbn:de:0030-drops-1685},
  doi =		{10.4230/DagSemProc.04441.7},
  annote =	{Keywords: Transactions , mobile clients , multi-hop wireless networks}
}
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