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Extending inductive methods to create practical tools for building expert systems

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2 Author(s)
Leng, B. ; Dept. of Comput. Sci., Pittsburgh Univ., PA, USA ; Buchanan, Bruce G.

Induction programs make several assumptions that limit their practical utility. Research to overcome the limitation of working within a fixed vocabulary is reported. A recently reported phenomenon in machine learning is that there is a tradeoff between the simplicity of concept descriptions and coverage of training instances, and a learning system cannot have both. It is argued that if a learning system can generate new terms, it can achieve both simplicity and coverage. A method for generating one new kind of terms, comparative terms, is given. The experimental results on a mushroom classification task show that a single comparative term can achieve 90% predictive accuracy

Published in:

Tools with Artificial Intelligence, 1992. TAI '92, Proceedings., Fourth International Conference on

Date of Conference:

10-13 Nov 1992

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