KEDMA—Linguistic Tools for Retrieval Systems

Abstract

In a full-text natural-language retrieval system, frequent need for automatic hngulst~c analysis arises, e.g for keyword expansion in a search process, content analysis, or automatic construction of concordances The avadablhty of sophisticated hngulstic tools, which is highly desirable for languages such as Enghsh, is quite imperative for, say, Semmc languages, whose complex morphological structure renders simple-minded and approximate soluuons such as suffix stripping totally useless. Sophisticated tools were designed and constructed via the fusion of grammatical analysis and grammatical synthesis, resulting in a set of global files which provide in some sense a complete grammatical and lexlcal description of the language These files induce a set of local files which adapt to the database at hand and permit flexible on-hne morphological analysis.