Document (#33018)

Author

Fujita, S.

Title

NTCIR-2 as a Rosetta stone in laboratory experiments of IR systems

Source

Information processing and management. 41(2005) no.3, S.489-506

Year

2005

Abstract

This paper presents a laboratory based evaluation study of cross-language information retrieval technologies, utilizing partially parallel test collections, NTCIR-2 (used together with NTCIR-1), where Japanese-English parallel document collections, parallel topic sets and their relevance judgments are available. These enable us to observe and compare monolingual retrieval processes in two languages as well as retrieval across languages. Our experiments focused on (1) the Rosetta stone question (whether a partially parallel collection helps in cross-language information access or not?) and (2) two aspects of retrieval difficulties namely "collection discrepancy" and "query discrepancy". Japanese and English monolingual retrieval systems are combined by dictionary based query translation modules so that a symmetrical bilingual evaluation environment is implemented.

Theme

Multilinguale Probleme

Object

NTCIR-2

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5. Li, Y.; Shawe-Taylor, J.: Advanced learning algorithms for cross-language patent retrieval and classification (2007) 0.21

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