Multi-disciplinary Approaches to Reasoning with Imperfect Information and Knowledge - a Synthesis and a Roadmap of Challenges (Dagstuhl Seminar 15221)

This report documents the program and the outcomes of Dagstuhl Seminar 15221 "Multi-disciplinary approaches to reasoning with imperfect information and knowledge - a synthesis and a roadmap of challenges". This multi-disciplinary seminar brought together researchers from computer science, philosophy and psychology dealing with topics of rational reasoning, reasoning with imperfect information and rational decision making in real world problems. The different views from computational, logical and cognitive perspectives provided new insights on overlapping goals and complemtary questions, for instance, when psychologists being interested in new formal models and computer scientists being interested whether their developed methods are materially adequate discussed logical and terminological backgrounds with philosophers. The combination of introductory talks, presentations and discussions of current work of the participants and discussion groups dealing with general questions lead to fruitful discussions where challenges for new paradigms of rational reasoning as well as visions and foci for interdisciplinary work were raised.