Paper: Inheritance And The CCG Lexicon

ACL ID E06-1001
Title Inheritance And The CCG Lexicon
Venue Annual Meeting of The European Chapter of The Association of Computational Linguistics
Session Main Conference
Year 2006

I propose a uniform approach to the elim- ination of redundancy in CCG lexicons, where grammars incorporate inheritance hierarchies of lexical types, defined over a simple, feature-based category descrip- tion language. The resulting formalism is partially ‘constraint-based’, in that the cat- egory notationis interpreted againstan un- derlying set of tree-like feature structures. I argue that this version of CCG subsumes a number of other proposed category no- tations devised to allow for the construc- tion of more efficient lexicons. The for- malism retains desirable properties such as tractability and strong competence, and provides a way of approaching the prob- lem of how to generalise CCG lexicons which have been automatically induced from treebanks. 1 The CCG formalism In its mos...