Research

Research Interests

Everything which has to do with data, information, the Web: information retrieval, database systems, information integration, data warehousing, data mining, machine learning, cloud computing, Web 2.0, Semantic Web, Web crawling, information extraction, etc...

PhD

In March 2010 I received my doctorate degree in computer science from Johannes Kepler University Linz (PhD thesis: A Flexible Architecture for Virtual Information Integration Based on Semantic Web Concepts).

Conferences

Between 2005 and 2010 I was PC member of the following conferences/workshops:

Talks

  • Linked Open Government Data, Keynote at the data.gv.at Meetup. OCG Vienna, April 2010.
  • Invited talk about my PhD work as part of a cooperation meeting between TU Vienna and NII Tokyo, sba-research Vienna, April 2010.
  • Semantics in the Smart Grid, Expert talk for the consortium of the Sesame EU project on smart metering. Marriott Linz, March 2010.
  • Semantische Datenintegration in eScience Grids - Chancen im E-Business (in German). Invited talk for the ebSemantics working group of the Austrian economic chamber. WKW Vienna, June 2007.
  • Are Ontologies the Nostrum to bridge the Semantic Gap? Invited Talk at the 8th International Conference on Information Integration and Web-based Application & Services (IIWAS'06), Yogyakarta, 2006.
  • Numerous conference presentations (see publications below)
  • Colloquiums at various partner universities

Publications, Tutorials, Posters, and Demos

  • Bernhard Schandl, Bernhard Haslhofer, Tobias Bürger, Andreas Langegger, and Wolfgang Halb: Linked Data and Multimedia: The State of Affairs. In Multimedia Tools and Applications, Special issue on Semantic Multimedia, Springer, 2010.

  • Andreas Langegger: Ontology-based Information Integration - A Flexible Approach for Ontology-based Virtual Information Integration Building on Semantic Web Technology (Dissertation). Südwestdeutscher Verlag für Hochschulschriften, März 2010. ISBN 3838115694.

  • Andreas Langegger: A Flexible Architecture for Virtual Information Integration Based on Semantic Web Concepts, PhD thesis. Johannes Kepler University Linz, Austria. January 2010.

  • Bernhard Haslhofer, Bernhard Schandl, Andreas Langegger, Wolfgang Halb, and Tobias Bürger: Web of Data in the Context of Multimedia (WoDMM), 4th International Conference on Semantic and Digital Media Technologies (SAMT 2009). Graz, Austria, 2009.

  • Andreas Langegger and Wolfram Wöß: XLWrap – Querying and Integrating Arbitrary Spreadsheets with SPARQL. In Proceedings of the 8th International Semantic Web Conference (ISWC2009), Washington D.C. LNCS 5823, Springer, 2009.

  • Andreas Langegger and Wolfram Wöß: Querying and Semantically Integrating Spreadsheet Collections with XLWrap-Server – Use Cases and Mapping Design Patterns. Poster & Demo Session at the 8th International Semantic Web Conference (ISWC2009), Washington D.C., 2009. Download poster

  • Wolfgang Schreiner, Károly Bósa, Andreas Langegger, Thomas Leitner, Bernhard Moser, Szilárd Páll, Volkmar Wieser, Wolfram Wöß: Parallel, Distributed, and Grid Computing. In Buchberger et al. (Eds.): Hagenberg Research. Springer, 2009.

  • A. Langegger, T. Leitner, W. Wöß: Providing Semantic Data Integration as a Grid Service - In Proceedings of the 3rd Austrian Grid Symposium 2009, Linz. OCG, 2009.

  • A. Langegger, W. Wöß: RDFStats - An Extensible RDF Statistics Generator and Library. In Workshop Proceedings of the DEXA Conference 2009, IEEE, 2009.

  • A. Langegger: Virtual Data Integration on the Web – Novel Methods for Accessing Heterogeneous and Distributed Data with Rich Semantics. In Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services (iiWAS2008), OCG Verlag, 2008.

  • A. Langegger, W. Wöß, M. Blöchl: SemWIQ – Semantic Web Integrator and Query Engine. In Lecture Notes in Informatics, International Applications of Semantic Web Workshop (AST'08), Gesellschaft für Informatik, Bonn, 2008.

  • A. Langegger, W. Wöß, M. Blöchl: A Semantic Web Middleware for Virtual Data Integration on the Web. In Proceedings of the European Semantic Web Conference (ESWC'08), p. 493-507. Springer. 2008.

  • A. Langegger, W. Wöß, M. Blöchl: A Semantic Web Middleware for Virtual Data Integration on the Web (Poster). European Semantic Web Conference (ESWC'08), CEUR-WS Proceedings. 2008.

  • A. Langegger, M. Blöchl, W. Wöß: Sharing Data on the Grid using Ontologies and distributed SPARQL Queries. In Proceedings of the DEXA Conference, 6th Workshop on Web Semantics. IEEE Computer Society Press. 2007.

  • A. Langegger: Ontology-based Virtual Data Integration for E-Science Grids (Poster). 4th European Semantic Web Conference, PhD Symposium. CEUR Workshop Proceedings. 2007. Abstract.

  • A. Langegger, W. Wöß: Product Finding on the Semantic Web - A Search Agent supporting Products with limited Availability. In Int. Journal of Web Information Systems 3:1/2. Emerald, 2007.

  • A. Langegger, R. Wagner: Product Finding on the Next Generation Web. In Proceedings of the 8th International Conference on Information Integration and Web-based Application & Services (IIWAS'06), Yogyakarta. OCG, 2006.

  • M. Blöchl, A. Langegger, W. Wöß: Registration of Heterogeneous Data Sources in the Case of the Grid Semantic Data Access Middleware (G-SDAM). In Proceedings of the Austrian Grid Symposium (AGS'06), OCG, 2006.

  • A. Langegger, J. Palkoska, R. Wagner: DaVinci - A Model-driven Web Engineering Framework. In International Journal of Web Information Systems, Vol. 2, Issue 2, p. 119-132, 2006. Troubador Publishing.

  • M. Blöchl, G. Gruber, A. Langegger und W. Wöß: G-SDAM - Seamless Semantic Data Interchange for Grid Computing. In Proceedings of the Austrian Grid Symposium (AGS'05), 2005. OCG Verlag

  • A. Wöhrer, M. Blöchl, P. Brezany, G. Gruber, A. Langegger, H. Schentz, W. Wöß: Towards Semantic Data Integration for Advanced Data Analysis of Grid Data Repositories. In Proceedings of the Austrian Grid Symposium (AGS'05), OCG, 2005

  • A. Langegger, J. Palkoska, R. Wagner: Simplifying a Web Application's Architecture - The DaVinci Framework. In Proceedings of The Seventh International Conference on Information Integration and Web-based Applications and Services (iiWAS'05, Malaysia), Vol. 2, pp. 643-654, Sept. 2005.

  • A. Langegger: Architektur und Design eines PHP4-basierten Frameworks für Webapplikationen. Master Thesis, Upper Austria University of Technology, Prof. Rimbert Rudisch. August 2003.