Events Calendar

NL Seminar-Capturing More Linguistic Structure with Graph-Structured Parsing

Speaker: Jonathan Kummerfeld, Univ. of Berkeley

Talk Title: Capturing More Linguistic Structure with Graph-Structured Parsing

Series: Natural Language Seminar

Abstract: The correct interpretation of any sentence is obscured by a vast array of alternatives. Previous work on disambiguating meaning has focused on representations of syntax using tree structures. Simplifying syntax in this way often means leaving out long-distance relations between words, providing less information to downstream tasks such as dialog and question answering. We propose a new algorithm that is able to efficiently search over graph structures, fully capturing argument structures as a directed acyclic graph. Our dynamic program uniquely decomposes structures, and is sound and complete with respect to the class of one-endpoint crossing graphs.





Biography: Jonathan is a Ph.D. candidate at UC Berkeley working on natural language processing with Dan Klein. His research focuses on new algorithms for interpreting text and analyzing system behavior. In particular, he has built search-based error analysis tools for syntactic parsing and coreference resolution, and a graph-based syntactic parser.

Host: Xing Shi and Kevin Knight

More Info: http://nlg.isi.edu/nl-seminar/

Location: Information Science Institute (ISI) - 11th Flr Conf Rm # 1135, Marina Del Rey

Audiences: Everyone Is Invited

Contact: Peter Zamar

Event Link: http://nlg.isi.edu/nl-seminar/