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Seminar
Department of Systems Engineering and Engineering Management
The Chinese
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Title |
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Exploiting Bilingual
Information to Improve (Monolingual) Web Search |
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Speaker |
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Mr. GAO Wei |
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Date |
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March 3rd, 2010 (Wednesday) |
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Time |
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2:30 p.m. - 3:30 p.m. |
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Venue |
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Room 513 |
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William M.W. Mong Engineering Building |
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(Engineering Building Complex Phase 2) |
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CUHK |
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Abstract:
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Web search quality
can vary widely across languages, even for the same information need. In this
study, we propose to exploit this variation in quality by learning a ranking
function on search results of bilingual queries, i.e., queries that appear in
query logs for two languages but represent equivalent search interests. For a
given bilingual query, along with corresponding monolingual query log and
monolingual ranking, we generate a ranking on pairs of documents, one from
each language. Then we learn a linear ranking function which exploits
bilingual features on pairs of documents, as well as standard monolingual
features. Finally, we show how to reconstruct monolingual ranking from a
learned bilingual ranking. Using publicly available Chinese and English query
logs, we demonstrate for both languages that our ranking technique exploiting
bilingual data leads to significant improvements over a state-of-the-art
monolingual ranking algorithm. |
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Biography:
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************************* ALL ARE WELCOME ************************
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Host |
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Prof. Li Duan |
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Tel |
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2609-8316/8323 |
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Enquiries |
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Prof. Nan Chen or Prof. Sean X. Zhou |
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Department of Systems Engineering and Engineering
Management |
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CUHK |
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Website |
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