It's a contradiction - No, it's not: A case study using functional relations

Alan Ritter*, Doug Downey, Stephen Soderland, Oren Etzioni

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

48 Scopus citations

Abstract

Contradiction Detection (CD) in text is a difficult NLP task. We investigate CD over functions (e.g., BornIn(Person)=Place), and present a domain-independent algorithm that automatically discovers phrases denoting functions with high precision. Previous work on CD has investigated hand-chosen sentence pairs. In contrast, we automatically harvested from the Web pairs of sentences that appear contradictory, but were surprised to find that most pairs are in fact consistent. For example, "Mozart was born in Salzburg" does not contradict "Mozart was born in Austria" despite the functional nature of the phrase "was born in". We show that background knowledge about meronyms (e.g., Salzburg is in Austria), synonyms, functions, and more is essential for success in the CD task.

Original languageEnglish (US)
Title of host publicationEMNLP 2008 - 2008 Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference
Subtitle of host publicationA Meeting of SIGDAT, a Special Interest Group of the ACL
Pages11-20
Number of pages10
StatePublished - Dec 1 2008
Event2008 Conference on Empirical Methods in Natural Language Processing, EMNLP 2008, Co-located with AMTA 2008 and the International Workshop on Spoken Language Translation - Honolulu, HI, United States
Duration: Oct 25 2008Oct 27 2008

Other

Other2008 Conference on Empirical Methods in Natural Language Processing, EMNLP 2008, Co-located with AMTA 2008 and the International Workshop on Spoken Language Translation
CountryUnited States
CityHonolulu, HI
Period10/25/0810/27/08

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Information Systems

Cite this