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Events and Activities

Invited Talks and Panels

• GeoS2009, Third International Conference on Geospatial Semantics (GeoS 2009), Mexico City, Mexico, December 2009. (conference keynote speaker on Semantic Web - Past, Present, and Future)
• KogWis 2008, Symposium on Neural-Symbolic Integration as a Means for Computational Cognition at the 9. Fachtagung der Gesellschaft für Kognitionswissenschaft, Dresden, Germany, September 2008. (invited speaker on Integrating Symbolic and Subsymbolic Cognitive Processing)
• SWAP 2006, Semantic Web Applications and Perspectives, 3rd Italian Semantic Web Workshop, Pisa, Italy, December 2006. (invited speaker on Towards subsymbolic methods for semantic knowledge)
• ISDT06, 4th International Symposium on Domain Theory. (invited speaker on Perspectives on Formal Concept Analysis: Domain Logics and Commonsense Reasoning)
• ARW-05. (panel member on What contribution can automated reasoning make to e-Science?)
• WPT 2002, Workshop on Proof Theory (invited speaker on Fixed-point Semantics for Logic Programming and Nonmonotonic Reasoning: A uniform approach)

Further presentations.

Steering Committee

• RR2009, Third International Conference on Web Reasoning and Rule Systems, Washington D.C., USA, October 2009. (steering committee vice-chair)
• OWLED2009, OWL - Experiences and Directions, Sixth International Workshop, Washington D.C., USA, October 2009. (steering committee member)
• ICCS2009, 17th International Conference on Conceptual Structures, Moscow, Russia, July 2009. (Editorial board member)
• OWLED2008, OWL - Experiences and Directions, Fifth International Workshop, Karlsruhe, Germany, October 2008. (steering committee member)
• RR2008, Second International Conference on Web Reasoning and Rule Systems, Karlsruhe, Germany, October 2008. (steering committee vice-chair)
• ICCS2008, 16th International Conference on Conceptual Structures, Toulouse, France, July 2008. (Editorial Board member)
• OWLED2008DC, Fourth Workshop OWL - Experiences and Directions, Washington D.C., April 2008. (steering committee member)
• ICCS2007, 15th International Conference on Conceptual Structures. (editorial board member)
• RR2007, First International Conference on Web Reasoning and Rule Systems. (steering committee vice-chair)
• OWLED2007, Third Workshop OWL - Experiences and Directions. (steering committee member)

Editorial Boards

• Book series Studies on the Semantic Web, IOS Press and AKA Verlag (Editor-in-Chief since 2009)
  
• Logic Journal of the IGPL (editorial board member since 2009)
  
• Journal of Artificial General Intelligence. (editorial board member since 2008)
• Book series Thinking Machines, Atlantis Press. (editorial board member since 2008)
• Journal of Algorithms in Cognition, Informatics and Logic (editorial board member 2008-2009)
• Journal Advances in Artificial Intelligence (editorial board member since 2007)
• Book series Begabtenförderung im MINT-Bereich, Aegis-Verlag, Ulm, dealing with enhancement programmes (editorial board member since 2003)

Conference Programme Chair

• AGI-09, Second Conference on Artificial General Intelligence, Arlington, Virginia, March 2009. (programme co-chair)
• ICCS06, 14th International Conference on Conceptual Structures. (programme co-chair)

Conference Area Chair

• KI 2009, 32nd Annual Conference on Artificial Intelligence, Paderborn, Germany, September 2009. (area co-chair Ontologies & Semantic Web)

Conference Sponsor Chair

• RR2009, Third International Conference on Web Reasoning and Rule Systems, Washington D.C., USA, October 2009. (sponsor chair)
• ESWC2009, 6th European Semantic Web Conference, May/June 2009, Heraklion, Crete, Greece. (sponsor chair)

Conference Organising Committee

• AGI-09, Second Conference on Artificial General Intelligence, Arlington, Virginia, March 2009. (member of organising committee)

Journal Special Issues (Guest Editor)

• Frank van Harmelen, Andreas Herzig, Pascal Hitzler, Guilin Qi, Commonsense Reasoning for the Semantic Web. Special Issue of the Springer Journal Annals of Mathematics and Artificial Intelligence, in preparation. Call for Papers.
• Marco Gori, Barbara Hammer, Pascal Hitzler, Günter Palm, Perspectives and Challenges for Recurrent Neural Networks. Special Issue of the Elsevier Journal of Algorithms in Cognition, Informatics and Logic, in preparation. Call for Papers.

Workshop Chair/Special Session Organiser

• Dagstuhl Seminar on Learning paradigms in dynamic environments, 2010. (co-organiser)
• NatuReS 2009, 2nd International Workshop on Nature Inspired Reasoning for the Semantic Web, at ISWC2009, October 2009. (organiser) (cancelled)
• AST2009, 4th International Workshop on Applications of Semantic Technologies at Informatik2009, Lübeck, Germany, September 2009. (co-organiser)
• AI Mashup Challenge 2009, at the 32nd Annual Conference on Artificial Intelligence, Paderborn, Germany, September 2009. (co-organiser)
• NeSy'09, Fifth International Workshop on Neural-symbolic Learning and Reasoning at IJCAI-09. (organiser)
• NatuReS 2008, Nature inspired Reasoning for the Semantic Web at ISWC08, Karlsruhe, Germany, October 2008. (organiser)
• AST2008, 3rd International Workshop on Applications of Semantic Technologies at Informatik2008, Munich, Germany, September 2008. (organiser)
• NeSy'08, Fourth International Workshop on Neural-symbolic Learning and Reasoning at ECAI2008. (organiser)
• ARea2008, Advancing Reasoning on the Web: Scalability and Commonsense. Workshop at ESCWC2008, Teneriffe, Spain, June 2008. (Co-organiser)
• Dagstuhl Seminar on Perspectives of Recurrent Neural Networks - Models, Capacities, and Applications, January 2008. (organiser)
• FAInt-07, Foundations of Artificial Intelligence, Workshop at KI2007. (organiser)
• AST2007, 2nd International Workshop on Applications of Semantic Technologies at Informatik2007, Bremen, Germany, September 2007. (organiser)
• NeSy'07, Third International Workshop on Neural-symbolic Learning and Reasoning at IJCAI-07. (organiser)
• OWLED2006, Second Workshop OWL - Experiences and Directions. (organizing committee member)
• AST2006, 1st International Workshop on Applications of Semantic Technologies at Informatik2006. (organiser)
• ICANN06, (special session organiser, Semantic Web Technologies and Neural Networks)
• NeSy'06, Second International Workshop on Neural-symbolic Learning and Reasoning at ECAI2006. (organiser)
• RoW06, Workshop Reasoning on the Web at WWW2006 (organiser)
• FOnt 2005, Workshop on Foundational Aspects of Ontologies at KI 2005. (organiser)
• NeSy'05, First International Workshop on Neural-Symbolic Learning and Reasoning at IJCAI-05. (organiser)
• Information 2004 Workshop on the Theory of Computation (organiser)
• Begabtenförderung-Workshop Tübingen. One-week enhancement programme for 12th/13th grade, Tübingen, March 1998. (organiser)

Panel Chairing

• Applications of Semantic Technologies. Panel at the 2nd International Workshop on Applications of Semantic Technologies, AST2007, at Informatik 2007, Bremen, September 2007. Panelists: Ralf Möller, Massimo Paolucci, Rainer Malaka.
• Rules and Ontologies. Panel at the 1st International Conference on Web Reasoning and Rule Systems, RR2007, Innsbruck, Austria, June 2007. Panelists: Nicola Leone, Carsten Lutz, Christian de Sainte Marie, Massimo Paolucci.
• Applications of Semantic Technologies. Panel at the 1st International Workshop on Applications of Semantic Technologies, AST2006, at Informatik 2006, Dresden, October 2006. Panelists: Franz Baader, Hans-Peter Schnurr, Walter Waterfeld.
• The Future of Reasoning on the Web. Panel at the Workshop on Reasoning on the Web, RoW06, at WWW2006, Edinburgh, May 2006. Panelists: Ed Barkmeyer, Ian Horrocks, Peter Patel-Schneider.

Conference Programme Committee

• DBKDA 2010, The Second International Conference on Advances in Databases, Knowledge, and Data Applications, Menuires, The Threee Valleys, France, April 2010. (PC member)
• WEBIST 2010, 6th International Conference on Web Information Systems and Technologies, Valencia, Spain, April 2010. (PC member)
• GeoS 2009, International Conference on Geospacial Semantics, Mexico City, Mexico, December 2009. (PC member)
• ISWC 2009, 8th International Semantic Web Conference, Washington, DC, October 2009. (PC member)
• SEMAPRO 2009, The Third International Conference on Advances in Semantic Processing, Sliema, Malta, October 2009. (PC member)
• ISDT2009, 5th International Symposium on Domain Theory, Shanghai, China, September 2009. (PC member)
• SUM2009, Third International Conference on Scalable Uncertainty Management, Washington D.C., September 2009. (PC member)
• IJCAI-09, 21st International Joint Conference on Artificial Intelligence, Pasadena, California, July 2009. (PC member)
• IJCNN 2009, 2009 International Joint Conference on Neural Networks, Atlanta, GA, June 2009. (official reviewer)
• DBKDA 2009, The First International Conference on Advances in Databases, Knowledge, and Data Applications, Cancun, Mexico, March 2009. (PC member)
• WEBIST 2009, 5th International Conference on Web Information Systems and Technologies, Lisboa, Portugal, March 2009. (PC member)
• CiE 2009, Computability in Europe, Heidelberg, Germany, June 2009. (PC member)
• ASWC2008, 3rd Asian Semantic Web Conference, Pathumthani, Thailand, December 2008. (PC member)
• ISWC2008, 7th International Semantic Web Conference, Karlsruhe, Germany, October 2008. (PC member)
• SBIA 2008, 19th Brazilian Symposium on Artificial Intelligence, Salvador, Bahia, Brazil, October 2008. (PC member)
• JELIA 2008, 11th European Conference on Logics in Artificial Intelligence, Dresden, Germany, October 2008. (PC member)
• SUM 2008, Second International Conference on Scalable Uncertainty Management, Napoli, Italy, October 2008. (PC member)
• KR-08, 11th International Conference on Principles of Knowledge Representation and Reasoning, Sydney, Australia, September 2008. (PC member)
• ECAI2008, 18th European Conference on Artificial Intelligence, Patras, Greece, July 2008. (PC member)
• ESWC2008, 5th International Semantic Web Conference, Teneriffe, Spain, June 2008. (PC member)
• FICS'08, Foundations of Informatics, Computing, and Software, Shanghai, China, June 2008. (PC member)
• WEBIST 2008, 4th International Conference on Web Information Systems and Technologies, Funchal, Madeira, Portugal, May 2008. (PC member)
• WWW2008, 17th International World Wide Web Conference, Beijing, China, April 2008. (PC member of Semantic Web Track)
• ICTAI 2007, IEEE International Conference on Tools with Artificial Intelligence. (PC member)
• CONTEXT 07, Sixth International and Interdisciplinary Conference on Modeling and Using Context. (PC member)
• IJCNN 2007, 2007 International Joint Conference on Neural Networks. (PC member)
• ESWC2007, 4th International Semantic Web Conference. (PC member)
• WWW2007, 16th International World Wide Web Conference. (PC member of Semantic Web track)
• WEBIST 2007, 3rd International Conference on Web Information Systems and Technologies, Barcelona, Spain, March 2007. (PC member)
• IJCAI-07, 20th International Joint Conference on Artificial Intelligence. (official reviewer)
• RuleML2006, Second International Conference on Rules and Rule Markup Languages for the Semantic Web. (PC member)
• ICANN06, International Conference on Artificial Neural Networks (PC member)
• MFCSIT06, Fourth Irish Conference on the Mathematical Foundations of Computer Science and Information Technology. (PC member)
• ESWC06, 3rd European Semantic Web Conference. (PC member)
• AIMSA2006, 12th International Conference on Artificial Intelligence: Methodology, Systems, Applications. (PC member)
• ICCS 2005, 13th International Conference on Conceptual Structures (PC member)

Lectures at Summer Schools

• ESSLLI 2008 (lecturer, Integrating Logic Programs and Connectionist Systems)
• ESSLLI 2006 (lecturer, Approximate Reasoning for the Semantic Web )
• ICCL Summer School 2006 on Knowledge Structures. (lecturer, Knowledge, Reasoning, and the Semantic Web)
• IK2006, Interdisciplinary College. (lecturer, Neural-symbolic learning and reasoning)
• ESSLLI 2005 (lecturer, Integrating Logic Programs and Connectionist Systems)

Tutorials at Conferences

• GeoS2009, Third International Conference on Geospatial Semantics (GeoS 2009), Mexico City, Mexico, December 2009. (invited tutorial on OWL 2 Rules)
• Informatik 2009, 39th Annual Conference of the Gesellschaft für Informatik, Lübeck, Germany, September/October 2009. (Tutorial, Semantic Web Ontology Languages)
• KI 2009, 32nd Annual Conference on Artificial Intelligence, Paderborn, Germany, September 2009. (Tutorial, Knowledge Representation and Reasoning for the Semantic Web - OWL 2 and Rules)
• IJCAI-09, (tutorial, Semantic Web Ontology Languages)
• ESWC2009, 6th European Semantic Web Conference, May/June 2009, Heraklion, Crete, Greece. (tutorial on OWL 2 Rules)
• ISWC2006, (tutorial, Context Sensitivity in Knowledge Rich Systems)
• ICANN06, (tutorial, Knowledge Technologies, Hybrid Approaches and Neural Networks)
• ESWC06 (tutorial, Practical Reasoning with OWL and DL-Safe Rules)
• KI 2005 (tutorial, Connectionist Knowledge Representation and Reasoning)

Journal Special Issues (EB member)

• IJSWIS special issue on Semantic Media Adaptation & Personalization
• International Journal of Semantic Computing, special issue on Web Scale Reasoning: scalable, tolerant and dynamic.
• GLDV-Journal for Computational Linguistics and Language Technology, special issue on ontologies in text technology.
• Fundamenta Informaticae special issue on RuleML-2006.
• IJSWIS special issue on ontology matching.

Workshop Programme Committee

• SeMuDaTe2009, Workshop on Semantic Multimedia Database Technologies - 10th International Workshop of the Multimedia Metadata Community, Graz, Austria, December 2009. (PC member)
• SWSC09, 8th Semantic Web Services Challenge Workshop, at the Seventh IEEE European Conference on Web Services, Eindhoven, The Netherlands, November 2009. (PC member)
• COLA09, Computational Logic with Applications, thematic track at EPIA 2009, the Fourteenth Portuguese Conference on Artificial Intelligence, Aveiro, Portugal, October 2009. (PC member)
• KDBI09, Knowledge Discovery and Business Intelligence, thematic track at EPIA 2009, the Fourteenth Portuguese Conference on Artificial Intelligence, Aveiro, Portugal, October 2009. (PC member)
• ASA 2009, Assistenzsysteme im Alltag: Von der Forschung in die Praxis, at Informatik 2009, Lübeck, Germany, September/October 2009. (PC member)
• RAKRL09, Relational Approaches to Knowledge Representation and Learning, at the 32nd Annual conference on Artificial Intelligence, Paderborn, Germany, September 2009. (PC member)
• DL2009, 22nd International Workshop on Description Logics, Oxford, UK, July 2009. (PC member)
• SWS-Challenge 2009, 8th Semantic Web Services Challenge Workshop, at the 5th European Conference on Model-Driven Architecture Foundations and Applications, ECMDA2009, Enschede, The Netherlands. (PC member)
• IRMLeS, Inductive reasoning and machine learning on the semantic web, at ESWC09, Heraklion, Greece, May 2009. (PC member)
• "Semantics for the Rest of Us" - Variants of RDF and OWL in the Real Worlds, at WWW09, Madrid, Spain, April 2009.
• SSWS2008, Fourth International Workshop on Scalable Semantic Web Knowledge Base Systems, Karlsruhe, Germany, October 2008. (PC member)
• iCEP-FIS08, 1st International Workshop on Complex Event Processing for the Future Internet, at the Future Internet Symposium, Vienna, Austria, September 2008. (PC member)
• NEFORS 2008, Workshop on New forms of reasoning for the Semantic Web: scalable, tolerant and dynamic, at the 3rd Asian Semantic Web Conference, ASWC2008, Pathumthani, Thailand, December 2008. (PC member)
• C&O-2008, 4th International Workshop on Contexts and Ontologies, at ECAI2008, Patras, Greece, July 2008. (PC member)
• WORM-08, International Workshop on Ontologies: Reasoning and Modularity, at ESWC2008, Teneriffe, Spain, June 2008. (PC member)
• DL2008, 2008 International Workshop on Description Logics, Dresden, Germany, May 2008.
• AAAI 2008 Spring Symposium on AI Meets Business Rules and Process Management, Stanford, CA, USA, March 2008. (PC member)
• SWAP2007, Semantic Web Applications and Perspectives, 4th Italian Semantic Web Workshop, Bari, Italy, December 2007. (PC member)
• SSWS2007, Third International Workshop on Scalable Semantic Web Knowledge Base Systems, Vilamoura, Algarve, Portugal, November 2007. (PC member)
• Workshop on Modular Ontologies, 4th International Conference on Knowledge Capture, Whistler, BC, October 2007. (PC member)
• ALPSWS2007, 2nd International Workshop on Applications of Logic Programming to the Web, Semantic Web and Semantic Web Services at ICLP2007, Porto, Portugal, September 2007. (PC member)
• SemInfra2007, First Workshop on Web Scale Infrastructures for Semantic Mashup, Search and Retrieval. (PC member)
• FBTC2007, From Biology To Concurrency and Back, Workshop at CONCUR2007, Lisboa, Portugal, September 2007. (PC member)
• SWAP 2006, Semantic Web Applications and Perspectives, 3rd Italian Semantic Web Workshop, Pisa, Italy, December 2006. (PC member)
• SMAP 2006, 1st International Workshop on Semantic Media Adaptation and Personalization, December 5th, 2006, Athens, Greece. (PC member)
• WoMO2006, First International Workshop on Modular Ontologies at ISWC2006, Athens, Georgia. (PC member)
• SSWS2006, Second International Workshop on Scalable Semantic Web Knowledge Base Systems at ISWC2006, Athens, Georgia. (PC member)
• Workshop on Imperfect Knowledge Modeling, Podebrady, Czech Republic, October 2006. (PC member)
• ALPSWS2006, International Workshop on Applications of Logic Programming in the Semantic Web and Semantic Web Services. (PC member)
• Semantic Web Personalization Workshop, 3rd European Semantic Web Conference. (PC member)
• WSPI 2006, Third International Workshop on Philosophy and Informatics. (PC member)

PhD Symposium and Student Conference Programme Committees

• PhD Symposium at the 6th European Semantic Web Conference, ESWC2009, Heraklion, Greece, May 2009. (PC member and mentor)
• ISCAM 2008, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2008.
• ISCAM 2007, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2007.
• EACL2006 Student Research Workshop at the 11th Annual Meeting of the EACL, EACL 2006.
• ISCAM 2006, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2006.
• ISCAM 2005, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2005.
• ISCAM 2004, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2004.
• ISCAM 2003, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2003.

Standardisation Activities

• Member of the OWL (Web Ontology Language) Working Group.
• Member of the W3C Rule Interchange Format Working Group.

Dissertation Committees

• Robert Höhndorf, Basic considerations for improving interoperability between ontology-based biological information systems, Dept. of Mathematics and Computer Science, University of Leipzig, Germany, 2009.
• Sergey Lukichev, Towards Rule Interchange and Rule Verification, Institute of Informatics, Brandenburg University of Technology at Cottbus, Germany, 2009.
• Matthias Knorr, CENTRIA, Universidade Nove de Lisboa, Potugal, forthcoming.

Reviewing

Miscellaneous

• Founding member of the Web Reasoning and Rule Systems Conference Association e.V. (as vice-president).
• Founding member of the Förderverein Semantische Technologien e.V.
• Teacher at the Semantic Web Akademie.
• Guest Scientist of the FZI Forschungszentrum Informatik.
• Collaborator of the Boole Centre for Research in Informatics, National University of Ireland, University College Cork, Ireland.
• ESWC2008 Demonstrations Track, 5th International Semantic Web Conference Demonstrations Track, Teneriffe, Spain, June 2008. (PC member)
• ESWC06 Poster/Demo session, 3rd European Semantic Web Conference Poster/Demo session. (PC member)
• BCU Mathematics Contest. International Enhancement Programme Maths Competition, March 2001, 2000, 1999. (organisation and execution in Cork, Irland (with Prof. Dr. F. Holland), and making of problem set (with Prof. Dr. F. Holland and Prof. Dr. G. Kalmbach))
• First International Conference on the Mathematical Foundations of Computer Science and Information Technology, MFCSIT2000, Cork, July 2000. (local organization assistant)
• Intensivkurs Mathematik. Two-week enhancement programme for 12th/13th grade, Ulm 2001, Donaueschingen 2000, 1999, 1998, 1997, 1996. (assistant for organization and execution)