Improving Bilingual Search Performance Using Compact Full-Text Indices

  • Jorge Costa
  • Luís Gomes
  • Gabriel P. Lopes
  • Luís M. S. Russo
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9041)

Abstract

Machine Translation tasks must tackle the ever-increasing sizes of parallel corpora, requiring space and time efficient solutions to support them. Several approaches were developed based on full-text indices, such as suffix arrays, with important time and space achievements. However, for supporting bilingual tasks, the search time efficiency of such indices can be improved using an extra layer for the text alignment. Additionally, their space requirements can be significantly reduced using more compact indices. We propose a search procedure on top of a compact bilingual framework that improves bilingual search response time, while having a space efficient representation of aligned parallel corpora.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Jorge Costa
    • 1
  • Luís Gomes
    • 1
  • Gabriel P. Lopes
    • 1
  • Luís M. S. Russo
    • 2
  1. 1.Faculdade de Ciências e TecnologiaUniversidade Nova de LisboaLisboaPortugal
  2. 2.INESC-ID / Instituto Superior TécnicoUniversidade de LisboaLisboaPortugal

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