Great Moments in KR, by Erik Sandewall

The Origins and Uses of Nonmonotonicity in KR

The idea of using nonmonotonic formalisms for the representation of knowledge came up independently in several places in the late 1960's. The first part of this talk will consist of personal recollections of the motivations that drove the work, and of the earliest proposals for nonmon formalisms.

After that, I will describe and discuss some of topics where nonmonotonic formalisms have been put to use, ranging from natural language understanding to reasoning about physical processes and to cognitive robotics. The emphasis will be on expressivity issues, not on the nonmonotonic logics per se or their formal-logical properties.

Biography

Erik Sandewall is professor of computer science at Link�ping University, Sweden, since 1975. His research activities are in two areas: first, artificial intelligence methods for cognitive robotics and their use in systems for human-computer and human-robot interaction and, secondly, new methods for communication of scientific results, including electronic publication.

Erik Sandewall is the director of WITAS, the Wallenberg Laboratory for Information Technology and Autonomous Systems. He is also Co-Editor-in-Chief (together with Ray Perrault) of the Artificial Intelligence Journal, General Editor of the Electronic Transactions on Artificial Intelligence, and Director of Linköping University Electronic Press.

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