A Statistical Semantic Parser that Integrates Syntax and Semantics (2005)
We introduce a learning semantic parser, Scissor, that maps natural-language sentences to a detailed, formal, meaning-representation language. It first uses an integrated statistical parser to produce a semantically augmented parse tree, in which each non-terminal node has both a syntactic and a semantic label. A compositional-semantics procedure is then used to map the augmented parse tree into a final meaning representation. We evaluate the system in two domains, a natural-language database interface and an interpreter for coaching instructions in robotic soccer. We present experimental results demonstrating that Scissor produces more accurate semantic representations than several previous approaches.
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Citation:
In Proceedings of CoNLL-2005, Ann Arbor, Michigan, June 2005.
Bibtex:

Ruifang Ge Ph.D. Alumni grf [at] cs utexas edu
Raymond J. Mooney Faculty mooney [at] cs utexas edu