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Parsing with an extended domain of locality

Published 1 January 1999Open access
John M. Carroll, Nicolas Nicolov, Olga Shaumyan, Martine Smets, David Weir
Citations8
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TL;DR

This work compares two wide-coverage lexicalized grammars of English, LEXSYS and XTAG, finding that the two grammARS exploit EDOL in different ways.

Abstract

One of the claimed benefits of Tree Adjoining Grammars is that they have an extended domain of locality (EDOL). We consider how this can be exploited to limit the need for feature structure unification during parsing. We compare two wide-coverage lexicalized grammars of English, LEXSYS and XTAG, finding that the two grammars exploit EDOL in different ways.

Keywords

Computer Science