"Algebraic Models of Reasoning" A Workshop at the KI 2003, Hamburg, September 15th - 18th, 2003 Organizers: Helmar Gust, Kai-Uwe Kuehnberger, Claus Rollinger, Ute Schmid In many areas of reasoning - such as analogical, inductive, case-based, or qualitative reasoning - rule-based/procedural approaches are dominating the field. Alternatively, algebraic approaches can be used. Such approaches focus on structural representations and provide a powerful and formally sound foundation for inference algorithms. Examples are the use of anti-unification in analogy and induction, coalgebraic models for analogical reasoning, and relational algebras for qualitative reasoning. The aim of the workshop is to bring together researchers from different areas of reasoning who develop and apply algebraic methods: existing formalisms shall be compared and evaluated, open problems shall be identified, transfer to other areas and application perspectives shall be discussed. Special focus will be on possible contributions of algebraic approaches to model cognitive aspects of reasoning. Some promising work in this direction exists in the domain of analogical reasoning. Additionally to AI researchers working on algebraic methods, the workshop should be of interest to students and researchers interested in the subject fields named above and in relations between AI and cognition. An introductory talk will be presented giving an overview of the different approaches of algebraic methods intended to provide a common basis for the participants of this workshop. The workshop will be organized in cooperation with two special interest groups of the GI Fachbereich KI, namely the special interest groups "Knowledge Representation and Reasoning" and "Cognition". We invite electronic submissions of papers (formats: PostScript, PDF). The papers should not exceed 10 A4, single-spaced Springer LNCS style pages. Accepted papers will be published in the Publications of the Institute of Cognitive Science, Osnabrueck (ISSN:1610-5389), on the workshop homepage, and on the workshop CD. Submission must be sent electronically to: kkuehnbe@uos.de Kai-Uwe Kuehnberger, Institute of Cognitive Science, University of Osnabrueck Phone: +49-541-969-6228 Fax: +49-541-969-6210 DEADLINE FOR SUBMISSIONS: 18.04.2003 NOTIFICATION OF ACCEPTANCE: 02.06.2003 Further information can be found on the Workshop homepage: URL: http://www.cogsci.uni-osnabrueck.de/~ki03amr/