This Friday’s colloquium will feature Luke Zettlemoyer from UW’s Department of Computer Science and Engineering. The Linguistics Department colloquium series is free and open to the public.
Assistant Professor of Computer Science and Engineering
Probabilistic categorial grammar induction with higher-order unification
Friday, October 14, 2011
Paccar Hall Room 291
Recent work has demonstrated effective learning algorithms for a variety of semantic parsing problems, where the goal is to automatically recover the underlying meaning of input sentences.
Although these algorithms can work well, there are often designed only for specific languages or meaning representations. In this talk, I will describe new, probabilistic CCG grammar induction algorithms that are largely language and representation independent. The key idea is to use labeled meaning representations to guide the induction of syntactic categories, via higher-order unification.
This method, when combined with new probabilistic models for categorial lexicon generalization, provides highly accurate semantic parsing results, with significantly reduced engineering effort. I will also briefly sketch future directions, including our efforts to use semantic parsing for grounded language understanding and in conversational systems.
Reception to Follow
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