@incollection{GuizzardiWagner, author = {Guizzardi, Giancarlo and Wagner, Gerd}, title = {Towards Ontological Foundations for Agent Modelling Concepts using the Unified Foundational Ontology (UFO)}, series = {Agent oriented information systems, 6th international bi-conference workshop, revised selected papers, AOIS 2004, Riga, Latvia, June 8, 2004, Bd. 2}, booktitle = {Agent oriented information systems, 6th international bi-conference workshop, revised selected papers, AOIS 2004, Riga, Latvia, June 8, 2004, Bd. 2}, editor = {Giorgini, Paolo}, publisher = {Springer}, address = {Berlin}, isbn = {3-540-25911-2}, pages = {124}, language = {en} } @misc{AnalytiAntoniouDamasioetal., author = {Analyti, Anastasia and Antoniou, Grigoris and Damasio, Carlos Viegas and Wagner, Gerd}, title = {Negation and Negative Information in the W3C Resource Description Framework}, series = {Annals of Mathematics, Computing \& Teleinformatics}, volume = {1}, journal = {Annals of Mathematics, Computing \& Teleinformatics}, number = {2}, pages = {25 -- 34}, language = {en} } @inproceedings{AntoniouBikakisWagner, author = {Antoniou, Grigoris and Bikakis, Antonis and Wagner, Gerd}, title = {A System for Nonmonotonic Rules on the Web}, editor = {Antoniou, Grigoris and Boley, Harold}, language = {en} } @incollection{GuizzardiWagner, author = {Guizzardi, Giancarlo and Wagner, Gerd}, title = {Some applications of a unified foundational ontology in business modeling}, language = {en} } @inproceedings{WagnerTaveter, author = {Wagner, Gerd and Taveter, Kuldar}, title = {Towards radical agent-oriented software engineering processes based on AOR modeling}, series = {Proceedings, IEEE/WIC/ACM International Conference on Intelligent Agent Technology (IAT 2004), Beijing, China, September 20 - 24, 2004}, booktitle = {Proceedings, IEEE/WIC/ACM International Conference on Intelligent Agent Technology (IAT 2004), Beijing, China, September 20 - 24, 2004}, editor = {Zhong, Ning}, publisher = {IEEE Computer Society}, address = {Los Alamitos, Calif. [u.a.]}, isbn = {0-7695-2101-0}, pages = {509 -- 512}, language = {en} } @incollection{WagnerTaveter, author = {Wagner, Gerd and Taveter, Kuldar}, title = {Towards radical agent-oriented software engineering processes based on AOR modeling}, language = {en} } @misc{GuizzardiWagnerAroyo, author = {Guizzardi, Renata and Wagner, Gerd and Aroyo, Lora}, title = {Knowledge management in learning communities}, series = {The ICFAI Journal of Knowledge Management}, volume = {3}, journal = {The ICFAI Journal of Knowledge Management}, number = {3}, pages = {30 -- 46}, language = {en} } @inproceedings{GuizzardiWagnerGuarinoetal., author = {Guizzardi, Giancarlo and Wagner, Gerd and Guarino, Nicola and Sinderen, Marten van}, title = {An Ontologically Well-Founded Profile for UML Conceptual Models}, series = {Advanced information systems engineering, 16th international conference, proceedings, CAiSE 2004, Riga, Latvia, June 7 - 11, 2004}, booktitle = {Advanced information systems engineering, 16th international conference, proceedings, CAiSE 2004, Riga, Latvia, June 7 - 11, 2004}, editor = {Persson, Anne}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-22151-4}, pages = {112 -- 116}, language = {en} } @inproceedings{Wagner, author = {Wagner, Gerd}, title = {AOR Modelling and Simulation: Towards a General Architecture for Agent-Based Discrete Event Simulation}, series = {Agent oriented information systems, 5th international bi-conference workshop, AOIS 2003, Melbourne, Australia, July 14, 2003 and Chicago, IL, USA, October 13th, 2003}, booktitle = {Agent oriented information systems, 5th international bi-conference workshop, AOIS 2003, Melbourne, Australia, July 14, 2003 and Chicago, IL, USA, October 13th, 2003}, editor = {Giorgini, Paolo}, publisher = {Springer}, address = {Berlin [u.a]}, isbn = {3-540-22127-1}, pages = {174 -- 188}, language = {en} } @inproceedings{LuinTulbaWagner, author = {Luin, Jeroin van and Tulba, Florin and Wagner, Gerd}, title = {Remodeling the Beer Game as an Agent-Objekt-Relationship Simulation}, language = {en} } @inproceedings{GuizzardiWagner, author = {Guizzardi, Giancarlo and Wagner, Gerd}, title = {A Unified Foundational Ontology and some Applications of it in Business Modeling}, series = {Data integration over the Web, CAiSE '04, The 16th Conference on Advanced Information Systems Engineering, Riga, Latvia, 7 - 11 June, 2004, proceedings}, booktitle = {Data integration over the Web, CAiSE '04, The 16th Conference on Advanced Information Systems Engineering, Riga, Latvia, 7 - 11 June, 2004, proceedings}, editor = {Grundspenkis, Janis and Kirikova, Marite}, publisher = {Fac. of Computer Science and Information Technology}, address = {Riga}, isbn = {9984-9767-3-4}, pages = {129 -- 143}, language = {en} } @incollection{AnalytiAntoniouDamasioetal., author = {Analyti, Anastasia and Antoniou, Grigoris and Damasio, Carlos Viegas and Wagner, Gerd}, title = {Stable model theory for extended RDFontologies}, series = {The Semantic Web - ISWC 2005, 4th International Semantic Web Conference, ISWC 2005, Galway, Ireland, November 6 - 10, 2005, proceedings}, booktitle = {The Semantic Web - ISWC 2005, 4th International Semantic Web Conference, ISWC 2005, Galway, Ireland, November 6 - 10, 2005, proceedings}, editor = {Gil, Yolanda}, edition = {1. ed.}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-29754-5}, pages = {21 -- 36}, language = {en} } @inproceedings{BoleyDeanKiferetal., author = {Boley, Harold and Dean, Mike and Kifer, Michael and Tabet, Said and Wagner, Gerd}, title = {RuleML Position Statement}, language = {en} } @inproceedings{BoleyWagnerMei, author = {Boley, Harold and Wagner, Gerd and Mei, Jing}, title = {RDF/RuleML Interoperability}, language = {en} } @inproceedings{TabetWagnerSpreeuwenbergetal., author = {Tabet, Said and Wagner, Gerd and Spreeuwenberg, Silvie and Vincent, Paul D. and Jacques, Gonzaques}, title = {OMG Production Rule Representation - Context and Current Status}, language = {en} } @inproceedings{Wagner, author = {Wagner, Gerd}, title = {Rule Modeling and Markup}, editor = {Eisinger, Norbert and Maluszynski, Jan}, language = {en} } @inproceedings{GiurcaWagner, author = {Giurca, Adrian and Wagner, Gerd}, title = {Towards an Abstract Syntax and Direct-Model Theoretic Semantics for RuleML}, series = {Rules and rule markup languages for the semantic web, first international conference, proceedings, RuleML 2005, Galway, Ireland, November 10 - 12, 2005}, booktitle = {Rules and rule markup languages for the semantic web, first international conference, proceedings, RuleML 2005, Galway, Ireland, November 10 - 12, 2005}, editor = {Adi, Asaf and Stoutenburg, Suzette}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-29922-X}, pages = {45 -- 55}, language = {en} } @inproceedings{GuizzardiWagner, author = {Guizzardi, Giancarlo and Wagner, Gerd}, title = {On the Ontological Foundations of Agent Concepts}, series = {CAiSE'04 Workshops in connection with The 16th Conference on Advanced Information Systems Engineering, Riga, Latvia, 7-11 June, 2004, Proceedings, Vol. 2}, booktitle = {CAiSE'04 Workshops in connection with The 16th Conference on Advanced Information Systems Engineering, Riga, Latvia, 7-11 June, 2004, Proceedings, Vol. 2}, editor = {Grundspenkis, Janis and Kirikova, Marite}, publisher = {Fac. of Computer Science and Information Technology, Techn. Univ.,}, address = {Riga}, isbn = {9984-9767-2-6}, pages = {265 -- 279}, language = {en} } @inproceedings{AntoniouBikakisWagner, author = {Antoniou, Grigoris and Bikakis, Antonis and Wagner, Gerd}, title = {A Defeasable Logic Programming System for the Web}, series = {16th IEEE International Conference on Tools with Artificial Intelligence (ICTAI 2004), 15-17 November 2004, Boca Raton, FL, USA}, booktitle = {16th IEEE International Conference on Tools with Artificial Intelligence (ICTAI 2004), 15-17 November 2004, Boca Raton, FL, USA}, publisher = {IEEE Computer Society}, address = {Los Alamitos, Calif. [u.a.]}, isbn = {0-7695-2236-X}, pages = {756 -- 757}, language = {en} } @inproceedings{AroyoWagnerDicheva, author = {Aroyo, Lora and Wagner, Gerd and Dicheva, Darina}, title = {Workshop on Applications of Semantic Web Technologies for E-Learning}, series = {Intelligent tutoring systems, 7th international conference, proceedings, ITS 2004, Macei{\´o}, Alagoas, Brazil, August 30 - September 3, 2004}, booktitle = {Intelligent tutoring systems, 7th international conference, proceedings, ITS 2004, Macei{\´o}, Alagoas, Brazil, August 30 - September 3, 2004}, editor = {Lester, James C. and Vicari, Rosa Maria}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-22948-5}, pages = {S. 912}, language = {en} } @inproceedings{GuizzardiWagnerSinderen, author = {Guizzardi, Giancarlo and Wagner, Gerd and Sinderen, Marten van}, title = {A Formal Theory of Conceptual Modeling Universals}, editor = {B{\"u}chel, Gregor and Klein, Bertin}, language = {en} }