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By Robert K. Lindsay, etc.

ISBN-10: 0070378959

ISBN-13: 9780070378957

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Additional info for Applications of Artificial Intelligence for Organic Chemistry: The Dendral Project (McGraw-Hill advanced computer science series)

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This is a program that enumerates for a particular problem its potential solutions, which are expressed as chemical graphs in the case of DENDRAL. It is often desirable, though not essential to the paradigm, for the generator to be exhaustive and nonredundant, that is, that it guarantee that every possible solution will be enumerated exactly once. The Heuristic DENDRAL generator has these properties. The Meta-DENDRAL generator does not, since the set of all possible solutions is not well defined.

1 INTRODUCTION The DENDRAL Project spans approximately half the history of artificial Intelligence (AI) research. This period has been one of great change in computer technology and in the attitudes, aspirations, and activities of the research community working on problems of artificial intelligence. To place DENDRAL in the context of its parent discipline so that we may see how it has drawn from and contributed to this development, we first look at the short history of AI. The major goal of AI research is a productive understanding of the processesof intelligent thought.

Ideally, the knowledge will be highly modular so that it is possible to add new knowledge without reevaluating the old. A key feature of the plan-generate-test paradigm is the interface between planner and generator: the output of the planner must be in a form appropriate to the language of the generator. In DENDRAL, having narrowed the search space by planning, the generator proceeds to produce all and only those solutions consistent with the plan. Typically this set of solutions, though much smaller than the entire space, will be undesirably large.

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Applications of Artificial Intelligence for Organic Chemistry: The Dendral Project (McGraw-Hill advanced computer science series) by Robert K. Lindsay, etc.


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