Two stages refinement of query translation for pivot language approach to cross lingual information retrieval: A trial at CLEF 200

Kazuaki Kishida, Noriko Kando

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

This paper reports experimental results of cross-lingual information retrieval from German to Italian. The authors are concerned with CLIR in the case that available language resources are very limited. Thus transitive translation of queries using English as a pivot language was used to search Italian document collections for German queries without any direct bilingual dictionary or MT system of these two languages. In order to remove irrelevant translations produced by the transitive translation, we propose a disambiguation technique, in which two stages of refinement of query translation are executed. Basically, this refinement is based on the idea of pseudo rele-vance feedback. In the first stage, for each source query term, we select a translation candidate that appears most frequently in the set of top-ranked documents searched for a set of terms pro-vided via transitive translation of the source query. Next, in the second stage, a standard query expansion based on pseudo relevance feedback is conducted. Our experiment result showed that the two stages refinement method is able to improve significantly search performance of bilingual IR using a pivot language. However, it also turned out that performance of this method is inferior to that of machine translation method.

本文言語English
ホスト出版物のタイトルCLEF 2003 - Working Notes for CLEF 2003 Workshop, co-located with the 7th European Conference on Digital Libraries, ECDL 2003
出版社CEUR-WS
1169
出版ステータスPublished - 2003
外部発表はい
イベント2003 Cross Language Evaluation Forum Workshop, CLEF 2003, co-located with the 7th European Conference on Digital Libraries, ECDL 2003 - Trondheim, Norway
継続期間: 2003 8 212003 8 22

Other

Other2003 Cross Language Evaluation Forum Workshop, CLEF 2003, co-located with the 7th European Conference on Digital Libraries, ECDL 2003
国/地域Norway
CityTrondheim
Period03/8/2103/8/22

ASJC Scopus subject areas

  • コンピュータ サイエンス(全般)

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