Paper: Asymmetry In Parsing And Generating With Unification Grammars: Case Studies From ELU

ACL ID P90-1026
Title Asymmetry In Parsing And Generating With Unification Grammars: Case Studies From ELU
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1990
Authors

Recent developments in generation algorithms have enabled work in nnificafion-based computational linguistics to approach more closely the ideal of grammars as declarative statements of linguistic facts, neutral between analysis an0_ synthesis, x-"~-oui this perspective, however, the situation is still far from perfect; all known methods of generation impose constraints on the grammars they assume. We briefly consider a number of proposals for generation, outlining their consequences for the form of grammacs, and then report on experience arising from the addition of a generator to an exist- ing unification environment. The algorithm in question (based on that of Shieber et al. (1989)), though among the most permissive currently avail- able, excludes certain classes of parsable analyses.