Encoding Frequency Information in Lexicalized Grammars

Details Encoding Frequency Information in Lexicalized Grammars Encoding Frequency Information in Lexicalized Grammars

1997-08-19

arxiv.org/abs/cmp-lg/9708012v1

5th International Workshop on Parsing Technologies (IWPT-97)

Computer Science

Computation and Language

10 pages, uses fullname.sty

Scientific paper

We address the issue of how to associate frequency information with lexicalized grammar formalisms, using Lexicalized Tree Adjoining Grammar as a representative framework. We consider systematically a number of alternative probabilistic frameworks, evaluating their adequacy from both a theoretical and empirical perspective using data from existing large treebanks. We also propose three orthogonal approaches for backing off probability estimates to cope with the large number of parameters involved.

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