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Artificial intelligence: a paper symposium

1974, Artificial Intelligence

Abstract

Professor LighthiU of Cambridge University is a famous hydrodynamici~t with a recent interest in applications to biology. His review of artificiai intelligence was at the request of Brian Flowers, then head of the Science Research Council of Great Britain, the main funding body for 3ritish university scientific research. Its purpose was to help the Science Research Council decide requests for support of work in AI. Lighthill claims no previous acquaintance with the field, but refers to a large number of authors whose works he consulted, though not to any specific papers. The Lighthill Report is organized around a classification of AI research in~,o three categories: Category A is advanced automation or applications, and he approves of it in principle. Included in A are some activities that are obviously applied but also activities like computer chess playing that ar. • often done not for themselves but in order to study the structure of intelligent behavior. Category C comprises studies of the central nervous system including computer modding in support of both neurophysiology and psychology. Category B is defined as "building robots" and "bridge" between the other categories. Lighthill defines a robot as a program or device built neither to serve a useful purpose nor to study the central nervous system, which obviously would exclude Unimates, etc. which are generally referred to as industrial robots. Emphasizing the bridge aspect of the definition, Lighthill states as obvious that work in category B is worthwhile only in so far a~ it contributes to the other categories. If we take this categorization seriously, then most AI researchers lose intellectual contact with Lighthill immediately, because his three categories have no place for what is or should be our main scientific activity-ztudying the structure of information and the structure of problem solving processes independently of applications and independently of its realization in animals or humans. This study is based on the following ideas: (1) Intellectual activity takes place in a world that has a certain physical and intellectual structure: Physical objects exist, move about, are created and destroyed. Actions that may be performed have effects that are partially known. Entities with goals have available to them certain information about this world. Some of this information may be built in, and some arises from.