Design of a Master Lexicon.
Abstract
This document describes the design for a 'Master Lexicon' which is intended to serve all the lexical needs of the two grammars (RUS, an ATN parser, and Nigel, a systemic production grammar) of the JANUS natural language project. Each grammar had previously been using its own lexicon, and these two lexicons were significantly different, both in terms of content and in terms of design. The Master Lexicon incorporates features of each of the previous lexicons, significantly Nigel's feature hierarchy and RUS's treatment of morphology and cross-indexing; plus it includes several novel features, most notably a new lexical acquisition interface which allows the non-specialist user to add lexical items. Nigel is able to access the Master Lexicon directly, while a set of translation rules (given in the appendix) transform ML lexical entries to lexical entries of the style used by RUS. Keywords: Artificial intelligence, Computational linguistics, Dictionary, English, Functional grammar, Grammar, Janus, LapltUp, Lexical acquisition, Lexical features, Lexicon, Master Lexicon, Natural language, Nigel, Penman, RUS, Syntax, Systemic Linguistics, Text generation, Vocabulary, Word acquisition, Wordclass hierarchy, Wordclasses.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1986
- Accession Number
- ADA165999
Entities
People
- Susanna Cumming
Organizations
- University of Southern California