Paper: Statistical Parsing With An Automatically-Extracted Tree Adjoining Grammar

ACL ID P00-1058
Title Statistical Parsing With An Automatically-Extracted Tree Adjoining Grammar
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2000
Authors
  • David Chiang (University of Pennsylvania, Philadelphia PA)

We discuss the advantages of lexical- ized tree-adjoining grammar as an al- ternative to lexicalized PCFG for sta- tisticalparsing,describingthe induction of a probabilistic LTAG model from the Penn Treebank and evaluating its pars- ing performance. We #0Cnd that this in- duction method is an improvementover the EM-based method of #28Hwa, 1998#29, and that the induced model yields re- sults comparable to lexicalized PCFG.