FBK-irst: lexical substitution task exploiting domain and syntagmatic coherence

  • Authors:
  • Claudio Giuliano;Alfio Gliozzo;Carlo Strapparava

  • Affiliations:
  • FBK-irst, Povo, Trento, Italy;FBK-irst, Povo, Trento, Italy;FBK-irst, Povo, Trento, Italy

  • Venue:
  • SemEval '07 Proceedings of the 4th International Workshop on Semantic Evaluations
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

This paper summarizes FBK-irst participation at the lexical substitution task of the Semeval competition. We submitted two different systems, both exploiting synonym lists extracted from dictionaries. For each word to be substituted, the systems rank the associated synonym list according to a similarity metric based on Latent Semantic Analysis and to the occurrences in the Web 1T 5-gram corpus, respectively. In particular, the latter system achieves the state-of-the-art performance, largely surpassing the baseline proposed by the organizers.