Extractive summarization of broadcast news: comparing strategies for European portuguese

  • Authors:
  • Ricardo Ribeiro;David Martins de Matos

  • Affiliations:
  • L2F/INESC ID Lisboa, Lisboa, Portugal;L2F/INESC ID Lisboa, Lisboa, Portugal

  • Venue:
  • TSD'07 Proceedings of the 10th international conference on Text, speech and dialogue
  • Year:
  • 2007

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Abstract

This paper presents the comparison between three methods for extractive summarization of Portuguese broadcast news: feature-based, Maximal Marginal Relevance, and Latent Semantic Analysis. The main goal is to understand the level of agreement among the automatic summaries and how they compare to summaries produced by non-professional human summarizers. Results were evaluated using the ROUGE-L metric. Maximal Marginal Relevance performed close to human summarizers. Both feature-based and Latent Semantic Analysis automatic summarizers performed close to each other and worse than Maximal Marginal Relevance, when compared to the summaries done by the human summarizers.