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Documents authored by van Keulen, Maurice

Document
DOI: 10.4230/DagSemProc.08421.1
08421 Abstracts Collection – Uncertainty Management in Information Systems

Authors: Christoph Koch, Birgitta König-Ries, Volker Markl, and Maurice van Keulen

Published in: Dagstuhl Seminar Proceedings, Volume 8421, Uncertainty Management in Information Systems (2009)

Abstract
From October 12 to 17, 2008 the Dagstuhl Seminar 08421 '`Uncertainty Management in Information Systems '' was held in Schloss Dagstuhl~--~Leibniz Center for Informatics. The abstracts of the plenary and session talks given during the seminar as well as those of the shown demos are put together in this paper.
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Christoph Koch, Birgitta König-Ries, Volker Markl, and Maurice van Keulen. 08421 Abstracts Collection – Uncertainty Management in Information Systems. In Uncertainty Management in Information Systems. Dagstuhl Seminar Proceedings, Volume 8421, pp. 1-25, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{koch_et_al:DagSemProc.08421.1,
  author =	{Koch, Christoph and K\"{o}nig-Ries, Birgitta and Markl, Volker and van Keulen, Maurice},
  title =	{{08421 Abstracts Collection – Uncertainty Management in Information Systems }},
  booktitle =	{Uncertainty Management in Information Systems},
  pages =	{1--25},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2009},
  volume =	{8421},
  editor =	{Christoph Koch and Birgitta K\"{o}nig-Ries and Volker Markl and Maurice van Keulen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08421.1},
  URN =		{urn:nbn:de:0030-drops-19428},
  doi =		{10.4230/DagSemProc.08421.1},
  annote =	{Keywords: Uncertainty management}
}
Document
DOI: 10.4230/DagSemProc.08421.2
08421 Executive Summary – Uncertainty Management in Information Systems

Authors: Christoph Koch, Birgitta König-Ries, Volker Markl, and Maurice van Keulen

Published in: Dagstuhl Seminar Proceedings, Volume 8421, Uncertainty Management in Information Systems (2009)

Abstract
This executive summary provides a brief overview of the topic, the organization, and the outcome of the Dagstuhl Seminar on Uncertainty Management in Information Systems.
Cite as

Christoph Koch, Birgitta König-Ries, Volker Markl, and Maurice van Keulen. 08421 Executive Summary – Uncertainty Management in Information Systems. In Uncertainty Management in Information Systems. Dagstuhl Seminar Proceedings, Volume 8421, pp. 1-9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{koch_et_al:DagSemProc.08421.2,
  author =	{Koch, Christoph and K\"{o}nig-Ries, Birgitta and Markl, Volker and van Keulen, Maurice},
  title =	{{08421 Executive Summary – Uncertainty Management in Information Systems }},
  booktitle =	{Uncertainty Management in Information Systems},
  pages =	{1--9},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2009},
  volume =	{8421},
  editor =	{Christoph Koch and Birgitta K\"{o}nig-Ries and Volker Markl and Maurice van Keulen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08421.2},
  URN =		{urn:nbn:de:0030-drops-19405},
  doi =		{10.4230/DagSemProc.08421.2},
  annote =	{Keywords: }
}
Document
DOI: 10.4230/DagSemProc.08421.5
08421 Working Group: Imprecision, Diversity and Uncertainty: Disentangling Threads in Uncertainty Management

Authors: Myra Spiliopoulou, Maurice van Keulen, Hans-Joachim Lenz, Jef Wijsen, Matthias Renz, Rudolf Kruse, and Mirco Stern

Published in: Dagstuhl Seminar Proceedings, Volume 8421, Uncertainty Management in Information Systems (2009)

Abstract
We report on the results of Workgroup 1 on "Imprecision, Diversity and Uncertainty". We set the scene by elaborating on where uncertainty comes from and what the ground truth is. In real world applications, the data observed may not be as expected: they may violate constraints, or, more generally, disagree with the anticipated model of the world. This leads to two orthogonal cases: The data may be erroneous, i.e. they must be corrected. Or, the model may outdated and must be adjusted to the data. After elaborating on this fundamental distinction, we address the issues of measuring uncertainty and exploiting uncertainty in real applications. We conclude with a list of challenges that should be addressed when dealing with uncertainty.
Cite as

Myra Spiliopoulou, Maurice van Keulen, Hans-Joachim Lenz, Jef Wijsen, Matthias Renz, Rudolf Kruse, and Mirco Stern. 08421 Working Group: Imprecision, Diversity and Uncertainty: Disentangling Threads in Uncertainty Management. In Uncertainty Management in Information Systems. Dagstuhl Seminar Proceedings, Volume 8421, pp. 1-3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{spiliopoulou_et_al:DagSemProc.08421.5,
  author =	{Spiliopoulou, Myra and van Keulen, Maurice and Lenz, Hans-Joachim and Wijsen, Jef and Renz, Matthias and Kruse, Rudolf and Stern, Mirco},
  title =	{{08421 Working Group: Imprecision, Diversity and Uncertainty: Disentangling Threads in Uncertainty Management}},
  booktitle =	{Uncertainty Management in Information Systems},
  pages =	{1--3},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2009},
  volume =	{8421},
  editor =	{Christoph Koch and Birgitta K\"{o}nig-Ries and Volker Markl and Maurice van Keulen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08421.5},
  URN =		{urn:nbn:de:0030-drops-19375},
  doi =		{10.4230/DagSemProc.08421.5},
  annote =	{Keywords: Uncertainty of data, uncertainty of models, measuring uncertainty, propagating uncertainty, challenges of dealing with uncertainty}
}
Document
DOI: 10.4230/DagSemProc.08421.7
08421 Working Group: Report of the Probabilistic Databases Benchmarking

Authors: Christoph Koch, Peter J. Haas, H.-J. Lenz, Dan Olteanu, Christopher Re, Maurice van Keulen, and Jeff Z. Pan

Published in: Dagstuhl Seminar Proceedings, Volume 8421, Uncertainty Management in Information Systems (2009)

Abstract
The results of the probabilistic database benchmark working group.
Cite as

Christoph Koch, Peter J. Haas, H.-J. Lenz, Dan Olteanu, Christopher Re, Maurice van Keulen, and Jeff Z. Pan. 08421 Working Group: Report of the Probabilistic Databases Benchmarking. In Uncertainty Management in Information Systems. Dagstuhl Seminar Proceedings, Volume 8421, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{koch_et_al:DagSemProc.08421.7,
  author =	{Koch, Christoph and Haas, Peter J. and Lenz, H.-J. and Olteanu, Dan and Re, Christopher and van Keulen, Maurice and Pan, Jeff Z.},
  title =	{{08421 Working Group: Report of the Probabilistic Databases Benchmarking}},
  booktitle =	{Uncertainty Management in Information Systems},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2009},
  volume =	{8421},
  editor =	{Christoph Koch and Birgitta K\"{o}nig-Ries and Volker Markl and Maurice van Keulen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08421.7},
  URN =		{urn:nbn:de:0030-drops-19367},
  doi =		{10.4230/DagSemProc.08421.7},
  annote =	{Keywords: Probabilistic databases, benchmark}
}
Document
DOI: 10.4230/DagSemProc.06472.1
06472 Abstracts Collection – XQuery Implementation Paradigms

Authors: Peter A. Boncz, Torsten Grust, Jérôme Siméon, and Maurice van Keulen

Published in: Dagstuhl Seminar Proceedings, Volume 6472, XQuery Implementation Paradigms (2007)

Abstract
From 19.11.2006 to 22.11.2006, the Dagstuhl Seminar 06472 ``XQuery Implementation Paradigms'' 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

Peter A. Boncz, Torsten Grust, Jérôme Siméon, and Maurice van Keulen. 06472 Abstracts Collection – XQuery Implementation Paradigms. In XQuery Implementation Paradigms. Dagstuhl Seminar Proceedings, Volume 6472, pp. 1-22, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

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@InProceedings{boncz_et_al:DagSemProc.06472.1,
  author =	{Boncz, Peter A. and Grust, Torsten and Sim\'{e}on, J\'{e}r\^{o}me and van Keulen, Maurice},
  title =	{{06472 Abstracts Collection – XQuery Implementation Paradigms}},
  booktitle =	{XQuery Implementation Paradigms},
  pages =	{1--22},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6472},
  editor =	{Peter A. Boncz and Torsten Grust and J\'{e}r\^{o}me Sim\'{e}on and Maurice van Keulen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.06472.1},
  URN =		{urn:nbn:de:0030-drops-8933},
  doi =		{10.4230/DagSemProc.06472.1},
  annote =	{Keywords: XQuery, XPath, XML, XQuery Benchmarking, XQuery Optimization, XQuery Interoperability, XQuery Hard Nut, Compilation, Benchmarking, XMark, Recursion, Database System, Functional Programming Language, Transaction Management, Distributed Query Processing}
}
Document
DOI: 10.4230/DagSemProc.06472.2
06472 Executive Summary – XQuery Implementation Paradigms

Authors: Peter A. Boncz, Torsten Grust, Jérôme Siméon, and Maurice van Keulen

Published in: Dagstuhl Seminar Proceedings, Volume 6472, XQuery Implementation Paradigms (2007)

Abstract
Only a couple of weeks after the participants of seminar No. 06472 met in Dagstuhl, the W3C published the Final Recommendation documents that fix the XQuery 1.0 syntax, data model, formal semantics, built-in function library and the interaction with the XML Schema Recommendations (see W3C's XQuery web site at http://www.w3.org/XML/Query/). With the language's standardization nearing its end and now finally in place, the many efforts to construct correct, complete, and efficient implementations of XQuery finally got rid of the hindering "moving target'' syndrome. This Dagstuhl seminar on the different XQuery implementation paradigms that have emerged in the recent past, thus was as timely as it could have possibly been.
Cite as

Peter A. Boncz, Torsten Grust, Jérôme Siméon, and Maurice van Keulen. 06472 Executive Summary – XQuery Implementation Paradigms. In XQuery Implementation Paradigms. Dagstuhl Seminar Proceedings, Volume 6472, pp. 1-6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

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@InProceedings{boncz_et_al:DagSemProc.06472.2,
  author =	{Boncz, Peter A. and Grust, Torsten and Sim\'{e}on, J\'{e}r\^{o}me and van Keulen, Maurice},
  title =	{{06472 Executive Summary – XQuery Implementation Paradigms}},
  booktitle =	{XQuery Implementation Paradigms},
  pages =	{1--6},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6472},
  editor =	{Peter A. Boncz and Torsten Grust and J\'{e}r\^{o}me Sim\'{e}on and Maurice van Keulen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.06472.2},
  URN =		{urn:nbn:de:0030-drops-10220},
  doi =		{10.4230/DagSemProc.06472.2},
  annote =	{Keywords: XQuery, XML, Database, Compiler, Functional Programming, Transactions}
}
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