tailieunhanh - Báo cáo khoa học: "A Heuristic Phonological Analyzer*"

Morphemes are the minimal meaning units of language, . the smallest units in the expression system w h i c h can be correlated with any part of the content system, . un+tir+ing+ly. URs are abstract entities . REPRESENTATION In G e n e r a t i v e Phonology sounds are r e p r e s e n t e d as matrices of feature specifications, the phonetic symbols shorthand for these matrices. | PHONY A Heuristic Phonological Analyzer Lee A. Becker Indiana University DOMAIN AND TASK REPRESENTATION PHONY is a program to do phonological analysis within the generative model of grammar the function of the phonological component is to assign a phonetic representation to an utterance by modifying the underlying representations URs of its constituent morphemes. Morphemes are the minimal meaning units of language . the smallest units in the expression system which can be correlated with any part of the content system . un tir ing ly. URs are abstract entities which contain the idiosyncratic information about pronounciations of morphemes. 1 PHONOLOGICAL Underlying COMPONENT Phonetic Representations --------------- Representations URs rules Phonological analysis attempts to determine the nature of the URs and to discover the general principles or rules that relate them to the phonetic representations. 2 URs PHONY Pronounciations---------------------- phonological analysis Rules The input to PHONY are pronounciations of words and phrases upon which a preliminary morphological analysis has been completed. They have been divided into morphemes and different instances of the same morpheme have been associated. These are represented as strings of phonetic symbols including morpheme- and word-boundaries. Indices are used to associate various instances of the same morpheme. 3 Isarapt lsarab 2da lsarav 3u lsarav 4e D5ad 6a 5 a t The output of PHONY is a set of phonological rules or regularities in the data as well as a set of underlying representations for the morphemes. The phonological rules generate the various pronounciations of the morphemes from their underlying representations. This research was supported in part by National Science Foundation grant number MCS 81-02291. In Generative Phonology sounds are represented as matrices of feature specifications the phonetic symbols being a shorthand for these matrices. 4 d - syllabic consonantal - continuant voice - .

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