Computational Opinions

Authors:
Felix Fischer;Matthias Nickles
Affiliations:
Computer Science Department, University of Munich, 80538 Munich, Germany, email: fischerf@tcs.ifi.lmu.de;Computer Science Department, Technical University of Munich, 85748 Garching, Germany, email: nickles@in.tum.de
Venue:
Proceedings of the 2006 conference on ECAI 2006: 17th European Conference on Artificial Intelligence August 29 -- September 1, 2006, Riva del Garda, Italy
Year:
2006

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Abstract

Existing approaches to knowledge representation and reasoning in the context of open systems either deal with “objective” knowledge or with beliefs. In contrast, there has been almost no research on the formal modelling of opinions, i.e., communicatively asserted ostensible beliefs. This is highly surprising, since opinions are in fact the only publicly visible kind of knowledge in open systems, and can neither be reduced to objective knowledge nor to beliefs. In this paper, we propose a formal framework for the representation of dynamic, context-dependent and revisable opinions and ostensible intentions as a sound basis for the external description of agents as obtained from observable communication processes. Potential applications include a natural semantics of communicative acts exchanged between truly autonomous agents, and a fine-grained, statement-level concept of trust.