Japanese Abbreviation Expansion with Query and Clickthrough Logs
Japanese Abbreviation Expansion with Query and Clickthrough Logs
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发表时间:
2011-11
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通讯作者:
Kei Uchiumi;Mamoru Komachi;Keigo Machinaga;Toshiyuki Maezawa;Toshinori Satou;Yoshinori Kobayashi
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作者:
Kei Uchiumi;Mamoru Komachi;Keigo Machinaga;Toshiyuki Maezawa;Toshinori Satou;Yoshinori Kobayashi
A novel reranking method has been developed to refine web search queries. A label propagation algorithm was applied on a clickthrough graph, and the candidates were reranked using a query language model. Our method first enumerates query candidates with common landing pages with regard to the given query to create a clickthrough graph. Second, it calculates the likelihood of the candidates, using a language model generated from web search query logs. Finally, the candidates are sorted by the score calculated from the likelihood and label propagation. As a result, high precision and coverage were achieved in the task of Japanese abbreviation expansion, without using handcrafted training data.