A syntax-free approach to Japanese sentence compression

  • Authors:
  • Tsutomu Hirao;Jun Suzuki;Hideki Isozaki

  • Affiliations:
  • NTT Corp., Soraku-gun, Kyoto, Japan;NTT Corp., Soraku-gun, Kyoto, Japan;NTT Corp., Soraku-gun, Kyoto, Japan

  • Venue:
  • ACL '09 Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language Processing of the AFNLP: Volume 2 - Volume 2
  • Year:
  • 2009
  • An abstractive approach to sentence compression

    ACM Transactions on Intelligent Systems and Technology (TIST) - Special Sections on Paraphrasing; Intelligent Systems for Socially Aware Computing; Social Computing, Behavioral-Cultural Modeling, and Prediction

Quantified Score

Hi-index 0.00

Visualization

Abstract

Conventional sentence compression methods employ a syntactic parser to compress a sentence without changing its meaning. However, the reference compressions made by humans do not always retain the syntactic structures of the original sentences. Moreover, for the goal of on-demand sentence compression, the time spent in the parsing stage is not negligible. As an alternative to syntactic parsing, we propose a novel term weighting technique based on the positional information within the original sentence and a novel language model that combines statistics from the original sentence and a general corpus. Experiments that involve both human subjective evaluations and automatic evaluations show that our method outperforms Hori's method, a state-of-the-art conventional technique. Because our method does not use a syntactic parser, it is 4.3 times faster than Hori's method.