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Issue No.02 - April (1993 vol.8)
pp: 13-23
<p>NLDB, a knowledge-based system that automatically categorizes news stories for dissemination, retrieval, and browsing, is discussed. The major knowledge-based component of NLDB is a lexicosemantic pattern matcher that identifies combinations of words and phrases, as well as more complex patterns. These include word roots, grammatical categories, and semantic structures, such as verbs describing classes of events. It is shown that this linguistic analysis outperforms statistical methods. Because building lexicosemantic patterns can be a laborious process, a set of statistical methods that automate pattern acquisition while preserving the benefits of a knowledge-based approach are developed.</p>
Paul S. Jacobs, "Using Statistical Methods to Improve Knowledge-Based News Categorization", IEEE Intelligent Systems, vol.8, no. 2, pp. 13-23, April 1993, doi:10.1109/64.207425
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