Computing linguistically-based textual inferences
Conferences & Talks

• Lauri Karttunen

Chalmers University of Technology

5 March 2008
Johanneberg, Sweden

description

A long-standing goal of computational linguistics is to build a system for answering natural language questions. A successful QA system has to recognize semantic relations between sentences. If the user would like to know the answer a question such as Did Shackleton reach the South Pole?, the system should recognize that the sentence Shackleton failed to reach the South Pole contains the answer. None of the current search engines is capable of delivering a simple NO answer in such cases. The system described in this talk does make the correct inference. It is the Bridge system (a bridge from language to logic) developed at PARC.