tailieunhanh - Báo cáo khoa học: "MACHINE-READABLE AND DICTIONARIES, THE LEXICAL SYSTEM DATA BASES"

I should like to raise some issues concerning the conversion from a traditional Marhine-Readable Dictionary (MRD) on tape to a Lexical Data Base (LDB), in order to highlight some important consequences for computational linguistics which can follow from this transition. The enormous potentialities of the information implicitly stored in a standard printed dictionary or a MRD can only be evidenced and made explicit when the same data are given a new logical structure in a data base model, and exploited by appropriate software. . | MACHINE-READABLE DICTIONARIES LEXICAL DATA BASES AND THE LEXICAL SYSTEM Nicoletta Caliolari Dipartimento di Linguistica Universita di Pisa Pisa ITALY Istituto di Linguistica Computasionale del CNR Pisa ITALY I should like to raise some issues concerning the conversion from a traditional Machine-Readable Dictionary MRD on tape to a Lexical Data Base LDB in order to highlight some important consequences for computational linguistics which can follow from this transition. The enormous potentialities of the information implicitly stored in a standard printed dictionary or a MRD can only be evidenced and made explicit when the same data are given a new logical structure in a data base model and exploited by appropriate software. A suitable use of DB methodology is a good starting point to discover several kinds of lexical morphological syntactic and semantic relationships between lexical entries which would otherwise have remained unexploited. Moreover the transformation of a very large-scale MRD into a LDB provides the means of operating throughout the lexicon in a really extensive manner. I think in fact that an almost exhaustive approach to lexical facts is essential both for reliable investigations of a lexical system and for many kinds of linguistic applications which cannot be restricted to a particular domain of discourse. The possibility of abstracting significant regularities from recurrent patterns of natural language definitions by means of suitable computational methods and of reaching a formalization of a number of important structuring relations within the lexicon will be discussed. An overview of the associative links already produced in the Italian LDB and of other allowable interconnections will be given. In a relational organization of a computerized dictionary with complex interlinked structures each word acquires its meaning as a result of its position in some of the partitionings created by the formalized relations. When an entry is activated all of

• Báo cáo khoa học
• MACHINE READABLE
• DICTIONARIES
• THE LEXICAL SYSTEM DATA BASES
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• model language
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• COMPUTER INTEBFACE DESIGN MURRAY TUROFF DEPARTMENT OF COMPUTER
• IiVFORMATION SCIENCE IIEW JERSEY INSTITUTE OF TECHNOLOGY
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