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Simrank++: Query Rewriting through Link Analysis of the Click Graph

Antonellis, Ioannis and Garcia-Molina, Hector and Chang, Chi-Chao (2008) Simrank++: Query Rewriting through Link Analysis of the Click Graph. In: 17th International World Wide Web Conference (WWW 2008), April 21-25, 2008, Beijing, China.


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We focus on the problem of query rewriting for sponsored search. We base rewrites on a historical click graph that records the ads that have been clicked on in response to past user queries. Given a query q, we first consider Simrank as a way to identify queries similar to q, i.e., queries whose ads a user may be interested in. We argue that Simrank fails to properly identify query similarities in our application, and we present two enhanced versions of Simrank: one that exploits weights on click graph edges and another that exploits "evidence." We experimentally evaluate our new schemes against Simrank, using actual click graphs and queries form Yahoo!, and using a variety of metrics. Our results show that the enhanced methods can yield more and better query rewrites.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Simrank++, query rewriting, sponsored search, link analysis, click graph, random walks, simrank
Subjects:Computer Science > Data Mining
Related URLs:Project Homepage
ID Code:869
Deposited By:Import Account
Deposited On:05 Mar 2008 16:00
Last Modified:10 Dec 2008 15:25

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