Recommending High Utility Queries via Query-Reformulation Graph
Recommending High Utility Queries via Query-Reformulation Graph
复制标题
通过查询重构图推荐高实用性查询
DOI:
10.1155/2015/956468
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发表时间:
2015-05
影响因子:
--
通讯作者:
Dingming Wu
中科院分区:
文献类型:
--
作者:
JianGuo Wang;Joshua Zhexue Huang;Dingming Wu
Query recommendation is an essential part of modern search engine which aims at helping users find useful information. Existing query recommendation methods all focus on recommending similar queries to the users. However, the main problem of these similarity-based approaches is that even some very similar queries may return few or even no useful search results, while other less similar queries may return more useful search results, especially when the initial query does not reflect user’s search intent correctly. Therefore, we propose recommending high utility queries, that is, useful queries with more relevant documents, rather than similar ones. In this paper, we first construct a query-reformulation graph that consists of query nodes, satisfactory document nodes, and interruption node. Then, we apply an absorbing random walk on the query-reformulation graph and model the document utility with the transition probability from initial query to the satisfactory document. At last, we propagate the document utilities back to queries and rank candidate queries with their utilities for recommendation. Extensive experiments were conducted on real query logs, and the experimental results have shown that our method significantly outperformed the state-of-the-art methods in recommending high utility queries.
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DOI:
10.1145/1835449.1835536
发表时间:
2010-07
期刊:
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
影响因子:
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作者:
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通讯作者:
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2011-07
期刊:
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影响因子:
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