tailieunhanh - Báo cáo khoa học: "Experiments in Semantic Classification"

It is argued that a thesaurus, or semantic classification, may be required in the resolution of multiple meaning for machine translation and allied purposes. The problem of constructing a thesaurus is then considered; this involves a method for defining the meanings or uses of words, and a procedure for classifying them. | Mechanical Translation and Computational Linguistics and 4 June and October 1965 Experiments in Semantic Classification by K. Sparck Jones Cambridge Language Research Unit Cambridge England It is argued that a thesaurus or semantic classification may be required in the resolution of multiple meaning for machine translation and allied purposes. The problem of constructing a thesaurus is then considered this involves a method for defining the meanings or uses of words and a procedure for classifying them. It is suggested that word uses may be defined in terms of their semantic relations with other words and that the classification may be based on these relations the paper then shows how the uses of words may be defined by synonyms to give rows or sets of synonymous word uses which can then be grouped by their common words to give thesauric classes. A discussion of the role of synonymy in language is followed by an examination of the way in which multiple meaning may be resolved by the use of a thesaurus of the kind described. The work described below has arisen from the Cambridge Language Research Unit s original ideas about the use of a thesaurus for machine Their argument put simply was that most words and not just some awkward words have ranges of uses or as it is sometimes put have different meanings or express different ideas on different occasions. In discourse any individual word considered by itself is thus potentially ambiguous because it can be used in different ways. This ambiguity is resolved and the correct use of each word specified by the surrounding context. This is because a piece of discourse is concerned with or expresses a particular idea or set of related ideas. Discourse does not consist of a sequence of semantically unconnected sentences it would be very hard to understand if it did but of sentences in which the same key concepts are repeated. The appropriate uses of ambiguous words are therefore picked out because .

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