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<p>A system that performs automated concept acquisition from examples and has been specially designed to work in noisy environments is presented. The learning methodology is aimed at the target problem of finding discriminant descriptions of a given set of concepts and uses both examples and counterexamples. The learned knowledge is expressed in the form of production rules, organized into separate clusters, linked together in a graph structure. Knowledge extraction is guided by a top-down control strategy, through a process of specialization. The system also utilizes a technique of problem reduction to contain the computational complexity. Several criteria are proposed for evaluating the acquired knowledge. The methodology has been tested on a problem in the field of speech recognition and the experimental results obtained are reported and discussed.</p>
machine learning; formal logic; artificial intelligence; knowledge acquisition; knowledge engineering; noisy environments; automated concept acquisition; learning methodology; discriminant descriptions; clusters; graph structure; computational complexity; speech recognition; artificial intelligence; computational complexity; knowledge engineering; learning systems; pattern recognition; speech recognition

A. Giordana, L. Saitta and F. Bergadano, "Automated Concept Acquisition in Noisy Environments," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 10, no. , pp. 555-578, 1988.
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