Tao Wan
2009
To divide and conquer search ranking by learning query difficulty
Zeyuan Allen Zhu
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Weizhu Chen
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Tao Wan
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Chenguang Zhu
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Gang Wang
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Zheng Chen
Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009