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Constraints on tree structure in concept formation. (English) Zbl 0751.68056

Artificial intelligence, IJCAI-91, Proc. 12th Int. Conf., Sydney/Australia 1991, 810-816 (1991).
[For the entire collection see Zbl 0741.68016.]
The authors describe ARACHNE, a concept formation system that uses explicit constraints on tree structures and local restructuring operators to produce well-formed probabilistic concept trees, while maintaining high predictive accuracy. The paper also presents COBWEB [D. H. Fisher: Knowledge acquisition via incremental conceptual clustering, Machine Learning, No. 2, 139-172 (1987)], which employs different criteria for tree formation and uses alternative restructuring operators, and compares it to the authors’ ARACHNE in four experiments, the latter providing promising qualities.
Reviewer: N.Curteanu (Iaşi)

MSC:

68T05 Learning and adaptive systems in artificial intelligence
68T20 Problem solving in the context of artificial intelligence (heuristics, search strategies, etc.)
68T35 Theory of languages and software systems (knowledge-based systems, expert systems, etc.) for artificial intelligence