|Department of Engineering|
|University of Cambridge > Engineering Department > Machine Intelligence Lab|
A SYSTEM FOR COMPUTER ASSISTED GRAMMAR CONSTRUCTION
Hsue-Hueh Shih and Steve Young
A system of computer assisted grammar construction (CAGC) is presented in this report. The CAGC system is designed to generate broad-coverage grammars for large natural language corpora by utilizing both an extended inside-outside algorithm and an automatic phrase bracketing (AUTO) system which is designed to provide the extended algorithm with constituent information during learning. This paper demonstrates the capability of the CAGC system to deal with realistic natural language problems and the usefulness of the AUTO system in the inside-outside based grammar re-estimation. Performance results including the proportion of sentences parsed and precision are presented for a grammar constructed for the Wall Street Journal (WSJ) corpus.
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2005 Cambridge University Engineering Dept
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