A dictionary and morphological analyser for English

摘要: This paper describes the current state of a three-year project aimed at development software for use in handling large quantit ies dictionary information within natural language processing systems. 1 The was accepted funding by SERC/Alvey commencing ill June 1984, and is being carried out Graeme Ritchie Alan Black Universi ty Edinburgh Steve Puhnan Graham Russell Cambridge. It one three closely related projects funded under Alvey IKBS Programme (Natural Language Tlleme); parser Henry Thompson John Phillips, sentence grammar devised Ted Briscoe Clare Grover Lancaster Bran Boguraev Carroll intended tha t rules produced all wil l be directly compatible capable functioning an integrated system. Realistic useful na tura systems such as database f ront-ends require numbers words, together wi th associated syntactic semantic Information, to efficiently stored machine-readable form. Our system Intended provide necessary facilities, designed store number (at least 10,000) words perform morphological analysis on them, covering both Inflectional derlvatlonal morphology. In pursuit these objectives, associates each word concerning its morphosyntactlc properties. Users are free modify ways; they may add lexical entries Lisp functions manipulatlons, tailor particular subject mat ter interested (different databases, example). I Is also hoped that general enough linguists wishing Investigate morphology English other languages. Contents basle data files altered or replaced: 1. A 'Word Grammar ' file contains assigning internal s ructure complex 2. 'Lexicon' holds morpheme which include Information stems affixes. 3. 'Spelling Rules' governing permissible correspondences between form morphemes listed lextcon consisting sequences morphemes. Once flies have been prepared, compiled using pre-processtng operate produce set output files. These constitute fu ly expanded cross-Indexed can then accessed from LISP. process consists parslng sequence Input respect grammar, Implemented active chart (Thompson & Rltchle (1984)), builds tree node has two