- Poster and Demo Proceedings of the 1st International Conference on Semantic and Digital Media Technologies SAMT-2006, Athens, Greece, (2006)
- VIE 2006: Proceedings of the International Conference on Visual Information Engineering, Bangalore, India, page 261-266. (2006)
- Artifical Intelligence for Human Computing: ICMI 2006 and IJCAI 2007 International Workshops, (2007)
- KI 2007: Advances in Artificial Intelligence, (2007)
- Informatikforschung in Deutschland, (2008)
- Von Suchmaschinen zu Antwortmaschinen: Semantische Technologien und Benutzerpartizipation im Web 3.0Wie arbeiten die Suchmaschinen von morgen?, (2008)
- Studies on the Semantic Web AKA, Heidelberg, (2010)
- Proceedings of IJCAI-09: 21st International Joint Conferences on Artificial Intelligence, Pasadena, CA, USA, page 1549-1554. (2009)
- Econ, Berlin, (2007)
- Journal on Multimodal User Interfaces 2(3-4):171-186 (2008)
- Proceedings of AVSP'07: International Conference on Auditory-Visual Speech Processing, Kasteel Groenendaal, Hilvarenbeek, The Netherlands, (2007)
- MULTIMEDIA '07: Proceedings of the 15th ACM International Conference on Multimedia, Augsburg, Germany, page 16. (2007)
- Web Semantics 5(3):156-174 (2007)
- KI 2007: Advances in Artificial Intelligence, (2007)
- Fachrichtung Informatik, Universität des Saarlandes, Saarbrücken, Masterarbeit, (June 2006)
- Springer, Berlin, (2008)
- ICMI '05: Proceedings of the 7th International Conference on Multimodal Interfaces, Trento, Italy, page 159-166. (2005)
- KI -- Künstliche Intelligenz 2007(2):30-33 (2007)


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