ICTNET at Web Track 2012 Diversity Task
CHINESE ACADEMY OF SCIENCES BEIJING INST OF COMPUTING TECHNOLOGY
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In this paper, we report our experiments at Diversity task, Web Track 2012. In this year, we attempt to use query expansion and topic model such as LDA to get subtopics. And an model based on xQuAD was used to re-rank the ad-hoc search results.
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