rapaport@cs.Buffalo.EDU (William J. Rapaport) (04/21/89)
UNIVERSITY AT BUFFALO STATE UNIVERSITY OF NEW YORK DEPARTMENT OF MATHEMATICS and GRADUATE RESEARCH INITIATIVE IN COGNITIVE AND LINGUISTIC SCIENCES PRESENT JON BARWISE Director, Symbolic Systems Program, Department of Philosophy, and Center for the Study of Language and Information (CSLI) Stanford University TOWARD A NEW MODEL OF REASONING This lecture, reporting joint work of John Etchemendy and the speaker, will discuss a new mathematical model of inference and reasoning. Our basic idea is that reasoning generally consists of the manipulation of _information_, not linguistic symbols. Language is just one of the many forms in which information can be couched. Visual images, for example in the form of diagrams or visual scenes of real-world objects, are other forms. Valid inference is the general process of extracting new information from information given or already obtained from a variety of sources, including both linguistic and visual. We think this is the way to think about reasoning in most situations, even in cases which seem, on the face of it, very symbolic, like mathematics. There are two novel features of our approach. One is the handling of information that is presented to us in more than one form. The other is that our approach is neutral between the two competing paradigms: rea- soning as deduction, and reasoning as model building (Johnson-Laird). We are developing a mathematical theory of inference based on this idea, as well as a computer program for teaching reasoning that is based on these ideas. The talk will present a discussion of the theory and a demo of a mock-up of the program. Monday, April 24, 1989 4:00 P.M. 684 Baldy Hall, Amherst Campus There will be an evening discussion at 8:00 P.M. at Lynne Hewitt's house, 239 Huntington Ave. (ground floor), Buffalo. Contact Nick Goodman, Dept. of Mathematics, 716-831-3179, or Bill Rapa- port, Dept. of Computer Science, 716-636-3193, for further information.