273. Task 5. Keyphrase extraction based on core word identification and word expansion

  • Authors:
  • You Ouyang;Wenjie Li;Renxian Zhang

  • Affiliations:
  • The Hong Kong Polytechnic University;The Hong Kong Polytechnic University;The Hong Kong Polytechnic University

  • Venue:
  • SemEval '10 Proceedings of the 5th International Workshop on Semantic Evaluation
  • Year:
  • 2010

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Abstract

This paper provides a description of the Hong Kong Polytechnic University (PolyU) System that participated in the task #5 of SemEval-2, i.e., the Automatic Keyphrase Extraction from Scientific Articles task. We followed a novel framework to develop our keyphrase extraction system, motivated by differentiating the roles of the words in a keyphrase. We first identified the core words which are defined as the most essential words in the article, and then expanded the identified core words to the target keyphrases by a word expansion approach.