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ACM Transactions on Asian Language Information Processing (TALIP), Volume 4 Issue 2, June 2005

Chinese OOV translation and post-translation query expansion in chinese--english cross-lingual information retrieval
Ying Zhang, Phil Vines, Justin Zobel
Pages: 57-77
DOI: 10.1145/1105696.1105697
Cross-lingual information retrieval allows users to query mixed-language collections or to probe for documents written in an unfamiliar language. A major difficulty for cross-lingual information retrieval is the detection and translation of...

Towards effective strategies for monolingual and bilingual information retrieval: Lessons learned from NTCIR-4
Yan Qu, David A. Hull, Gregory Grefenstette, David A. Evans, Motoko Ishikawa, Setsuko Nara, Toshiya Ueda, Daisuke Noda, Kousaku Arita, Yuki Funakoshi, Hiroshi Matsuda
Pages: 78-110
DOI: 10.1145/1105696.1105698
At the NTCIR-4 workshop, Justsystem Corporation (JSC) and Clairvoyance Corporation (CC) collaborated in the cross-language retrieval task (CLIR). Our goal was to evaluate the performance and robustness of our recently developed commercial-grade CLIR...

Flexible pseudo-relevance feedback via selective sampling
Tetsuya Sakai, Toshihiko Manabe, Makoto Koyama
Pages: 111-135
DOI: 10.1145/1105696.1105699
Although Pseudo-Relevance Feedback (PRF) is a widely used technique for enhancing average retrieval performance, it may actually hurt performance for around one-third of a given set of topics. To enhance the reliability of PRF, Flexible PRF has been...

Rich results from poor resources: NTCIR-4 monolingual and cross-lingual retrieval of korean texts using chinese and english
Kui Lam Kwok, Sora Choi, Norbert Dinstl
Pages: 136-162
DOI: 10.1145/1105696.1105700
We report on Korean monolingual, Chinese-Korean English-as-pivot bilingual, and Chinese-English bilingual CLIR experiments using MT software augmented with Web-based entity-oriented translation as resources in the NTCIR-4 environment. Simple stemming...

Comparative study of monolingual and multilingual search models for use with asian languages
Jacques Savoy
Pages: 163-189
DOI: 10.1145/1105696.1105701
Based on the NTCIR-4 test-collection, our first objective is to present an overview of the retrieval effectiveness of nine vector-space and two probabilistic models that perform monolingual searches in the Chinese, Japanese, Korean, and English...

Proposal of two-stage patent retrieval method considering the claim structure
Hisao Mase, Tadataka Matsubayashi, Yuichi Ogawa, Makoto Iwayama, Tadaaki Oshio
Pages: 190-206
DOI: 10.1145/1105696.1105702
The importance of patents is increasing in global society. In preparing a patent application, it is essential to search for related patents that may invalidate the invention. However, it is time-consuming to identify them among the millions of...

Revisiting Document Length Hypotheses: A Comparative Study of Japanese Newspaper and Patent Retrieval
Sumio Fujita
Pages: 207-235
DOI: 10.1145/1105696.1105853