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Communication Dans Un Congrès Année : 2008

Enrichissement dynamique du vocabulairè a partir du Web

Stanislas Oger
  • Fonction : Auteur
  • PersonId : 770872
  • IdRef : 176527176
Georges Linarès
Frédéric Béchet

Résumé

Most of the Web-based methods for lexicon augmenting consist in capturing global semantic features of the targeted domain in order to collect relevant documents from the Web. We suggest that the local context of the out-of-vocabulary words contains relevant information on the OOV words. With this information , we propose to use the Web to build locally-augmented lexicons which are used in a final local decoding pass. Our experiments confirm the relevance of the Web for the OOV word retrieval. Different methods are proposed to retrieve the hypothesis words. Finally we present the integration of new words in the transcription process based on part-of-speech models. This technique allows to recover 7.6% of the significant OOV words and the accuracy of the system is improved.
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Dates et versions

hal-01319845 , version 1 (23-05-2016)

Identifiants

  • HAL Id : hal-01319845 , version 1

Citer

Stanislas Oger, Georges Linarès, Frédéric Béchet, Pascal Nocera. Enrichissement dynamique du vocabulairè a partir du Web. JEP, Jun 2008, Avignon, France. ⟨hal-01319845⟩

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