UHYG at the NTCIR-12 MobileClick Task: Link-based Ranking on iUnit-Page Bipartite Graph
نویسندگان
چکیده
We participated in the iUnit ranking subtask and the iUnit summarization subtask of the NTCIR-12 MobileClick for the Japanese and English languages. Our strategy is based on link analysis on an iUnit-page bipartite graph. First, we constructed an iUnit-page bipartite graph considering the entailment relationship between the iUnits and the pages. Then, we ranked the iUnits by their scores based on link analysis. For the iUnit ranking subtask, we examined three types of entailment relationships and three types of link analysis, the degree of nodes, PageRank, and HITS. For the iUnit summarization subtask, we propose an intent-sensitive PageRank that is an extended version of the topic-sensitive PageRank based on the probability that users visit pages in a search result page.
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