Chapter

Natural Language Processing – IJCNLP 2005

Volume 3651 of the series Lecture Notes in Computer Science pp 908-919

Exploiting Lexical Conceptual Structure for Paraphrase Generation

  • Atsushi FujitaAffiliated withGraduate School of Informatics, Kyoto University
  • , Kentaro InuiAffiliated withGraduate School of Information Science, Nara Institute of Science and Technology
  • , Yuji MatsumotoAffiliated withGraduate School of Information Science, Nara Institute of Science and Technology

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Abstract

Lexical Conceptual Structure (LCS) represents verbs as semantic structures with a limited number of semantic predicates. This paper attempts to exploit how LCS can be used to explain the regularities underlying lexical and syntactic paraphrases, such as verb alternation, compound word decomposition, and lexical derivation. We propose a paraphrase generation model which transforms LCSs of verbs, and then conduct an empirical experiment taking the paraphrasing of Japanese light-verb constructions as an example. Experimental results justify that syntactic and semantic properties of verbs encoded in LCS are useful to semantically constrain the syntactic transformation in paraphrase generation.