Une méthode contextuelle d'extension de requête avec des groupements de mots pour le résumé automatique

Translated title of the contribution: A contextual method of query expansion with term clusters for automatic summarization

Jean François Pessiot, Young Min Kim, Massih Reza Amini, Nicolas Usunier, Patrick Gallinari

Research output: Contribution to conferencePaper

Abstract

This paper describes the different steps which lead to the construction of the LIP6 extractive summarizer.The basic idea behind this system is to expand question and title keywords of each topic with their respective cluster terms.Term clusters are found by unsupervised learning using a classification variant of the well-known EM algorithm.Each sentence is then characterized by 4 features, each of which uses bag-of-words similarities between expanded topic title or questions and the current sentence.A final score of the sentences is found by manually tuning the weights of a linear combination of these features ; these weights are chosen in order to maximize the Rouge-2 AvF measure on the Duc 2006 corpus.

Translated title of the contributionA contextual method of query expansion with term clusters for automatic summarization
Original languageFrench
Pages289-304
Number of pages16
StatePublished - 2008 Dec 1
Event5th Conference on Information Retrieval and Applications, CORIA 2008 - Tregastel, France
Duration: 2008 Mar 122008 Mar 14

Conference

Conference
CountryFrance
CityTregastel
Period08/03/1208/03/14

Keywords

  • Query expansion
  • Text summarization
  • Unsupervised learning

Fingerprint Dive into the research topics of 'A contextual method of query expansion with term clusters for automatic summarization'. Together they form a unique fingerprint.

  • Cite this

    Pessiot, J. F., Kim, Y. M., Amini, M. R., Usunier, N., & Gallinari, P. (2008). Une méthode contextuelle d'extension de requête avec des groupements de mots pour le résumé automatique. 289-304. Paper presented at 5th Conference on Information Retrieval and Applications, CORIA 2008, Tregastel, France.