Exploiting Lexical Conceptual Structure for Paraphrase Generation
- Cite this paper as:
- Fujita A., Inui K., Matsumoto Y. (2005) Exploiting Lexical Conceptual Structure for Paraphrase Generation. In: Dale R., Wong KF., Su J., Kwong O.Y. (eds) Natural Language Processing – IJCNLP 2005. IJCNLP 2005. Lecture Notes in Computer Science, vol 3651. Springer, Berlin, Heidelberg
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.
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