Algorithmics: theory & practice
Algorithmics: theory & practice
Phase Transitions in Relational Learning
Machine Learning
Learning Logical Definitions from Relations
Machine Learning
SMART+: a multi-strategy learning tool
IJCAI'93 Proceedings of the 13th international joint conference on Artifical intelligence - Volume 2
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A previous research has shown that most learning strategies fail to learn relational concepts when descriptions involving more than three variables are required. The reason resides in the emergence of a phase transition in the covering test. After an in depth analysis of this aspect, this paper proposes an alternative learning strategy, combining a Monte Carlo stochastic search with local deterministic search. This approach offers two main benefits: on the one hand, substantial advantages over more traditional search algorithms, in terms of increased learning ability, and, on the other, the possibility of an a- priori estimation of the cost for solving a learning problem, under specific assumptions about the target concept.