Building bilingual lexicons using lexical translation probabilities via pivot languages

Takashi Tsunakawa, Naoaki Okazaki, Jun'ichi Tsujii

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

This paper proposes a method of increasing the size of a bilingual lexicon obtained from two other bilingual lexicons via a pivot language. When we apply this approach, there are two main challenges, ambiguity and mismatch of terms; we target the latter problem by improving the utilization ratio of the bilingual lexicons. Given two bilingual lexicons between language pairs Lf-Lp and Lp-Le, we compute lexical translation probabilities of word pairs by using a statistical word-alignment model, and term decomposition/composition techniques. We compare three approaches to generate the bilingual lexicon: exact merging, word-based merging, and our proposed alignment-based merging. In our method, we combine lexical translation probabilities and a simple language model for estimating the probabilities of translation pairs. The experimental results show that our method could drastically improve the number of translation terms compared to the two methods mentioned above. Additionally, we evaluated and discussed the quality of the translation outputs.

本文言語English
ホスト出版物のタイトルProceedings of the 6th International Conference on Language Resources and Evaluation, LREC 2008
出版社European Language Resources Association (ELRA)
ページ1664-1667
ページ数4
ISBN(電子版)2951740840, 9782951740846
出版ステータスPublished - 2008
イベント6th International Conference on Language Resources and Evaluation, LREC 2008 - Marrakech, Morocco
継続期間: 2008 5 282008 5 30

出版物シリーズ

名前Proceedings of the 6th International Conference on Language Resources and Evaluation, LREC 2008

Other

Other6th International Conference on Language Resources and Evaluation, LREC 2008
国/地域Morocco
CityMarrakech
Period08/5/2808/5/30

ASJC Scopus subject areas

  • 図書館情報学
  • 言語学および言語
  • 言語および言語学
  • 教育

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