Welcome to my homepage. Currently I'm working as a research assistant in the
Databases and Information Systems group
at the
Department of Computer Science,
Humboldt-Universität zu Berlin.
Research Interests
- Trustworthiness of Data on the Web
- Web Data Provenance
- Processing Queries over Data from the Web
- Query Processing for RDF Knowledge Bases
- Privacy Issues in the Semantic Web
- Semantic Web Enabled Software Engineering
Projects
Current Projects
Past Projects
Publications
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Olaf Hartig, Christian Bizer, and Johann-Christoph Freytag:
Executing SPARQL Queries over the Web of Linked Data.
In Proceedings of the 8th International Semantic Web Conference (ISWC), Washington, DC, USA,
Oct. 2009
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Olaf Hartig and Jun Zhao:
Using Web Data Provenance for Quality Assessment.
In Proceedings of the 1st Int. Workshop on the Role of Semantic Web in Provenance Management (SWPM) at the International Semantic Web Conference (ISWC), Washington, DC, USA,
Oct. 2009
-
Olaf Hartig:
Querying Trust in RDF Data with tSPARQL.
In Proceedings of the 6th European Semantic Web Conference (ESWC), Heraklion, Greece,
Jun. 2009
(Best Paper Award winner)
-
Olaf Hartig, Hannes Mühleisen, and Johann-Christoph Freytag:
Linked Data for Building a Map of Researchers (Scripting Challenge Submission).
In Proceedings of the 5th Workshop on Scripting for the Semantic Web (SFSW) at the European Semantic Web Conference (ESWC), Heraklion, Greece,
Jun. 2009
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Olaf Hartig:
Provenance Information in the Web of Data.
In Proceedings of the Linked Data on the Web (LDOW) Workshop at the World Wide Web Conference (WWW), Madrid, Spain,
Apr. 2009
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Olaf Hartig, Martin Kost, and Johann-Christoph Freytag:
Automatic Component Selection with Semantic Technologies.
Proceedings of the 4th International Workshop on Semantic Web Enabled Software Engineering (SWESE) at the 7th International Semantic Web Conference (ISWC), Karlsruhe, Germany,
Oct. 2008
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Olaf Hartig, Martin Kost, and Johann-Christoph Freytag:
Designing Component-Based Semantic Web Applications with DESWAP.
Proceedings of the Poster and Demonstration Session at the 7th International Semantic Web Conference (ISWC), Karlsruhe, Germany,
Oct. 2008
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Olaf Hartig:
Trustworthiness of Data on the Web.
In Proceedings of the STI Berlin & CSW PhD Workshop, Berlin, Germany,
Sep. 2008
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Olaf Hartig and Ralf Heese:
The SPARQL Query Graph Model for Query Optimization.
In Proceedings of the 4th European Semantic Web Conference (ESWC), Innsbruck, Austria,
Jun. 2007
-
Olaf Hartig:
Grundlagen regelbasierter Optimierung für SPARQL.
Diploma Thesis,
Humboldt-Universität zu Berlin, 2006
Teaching
Program Committees
- 15th International Conference on Information Quality (ICIQ), November 2010, Little Rock, Arkansas, USA
- Triplification Challenge 2010 at I-Semantics, September 2010, Graz, Austria
- 6th International Conference on Semantic Systems (I-Semantics), September 2010, Graz, Austria
- 3rd International Provenance and Annotation Workshop (IPAW), June 2010, Troy, New York, USA
- 7th Extended Semantic Web Conference (ESWC), In Use Track, June 2010, Heraklion, Greece
- 2nd Workshop on Trust and Privacy on the Social and Semantic Web (SPOT), June 2010, Heraklion, Greece
- 3rd Linked Data on the Web Workshop (LDOW), April 2010, Raleigh, North Carolina, USA
- 2nd Social Data on the Web Workshop (SDoW), October 2009, Washington DC, USA
- 5th International Conference on Semantic Systems (I-Semantics), September 2009, Graz, Austria
- 2nd Linked Data on the Web Workshop (LDOW), April 2009, Madrid, Spain
Aditional Activities