The aim of this work is to relate two apparently independent concepts as belief revision and relevance. We propose a formal characterization for the notion of (ir)relevance by means of a set of postulates. Then we define (ir)relevance using change…

The Artificial Intelligence Laboratory proposes to continue its work on a group of closely interconnected projects, all bearing on questions about how to make computers able to use more sophisticated kinds of knowledge to solve difficult problems. This proposal explains…

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The theory of motion in Ibn Bajjah's philosophy is studied in this dissertation from three aspects: physical, psychical and metaphysical. Aside from the introduction the dissertation is divided into three major chapters corresponding to these three aspects. Ibn Bajjah's theory…

The cellular control of calcium and phosphate is still confusing and controversial. The reviewer has tried to put useful hypotheses and existing knowledge into a more or less unified theory like all theories based on rational hypothesis this review may…

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Descripción completa.

Descripción completa.

This paper descries D-SCRIPT, a language for representing knowledge in artificial intelligence programs. D-SCRIPT contains a powerful formalism for descriptions, which permits the representation of statements that are problematical for other systems. Particular attention is paid to problems of opaque…