641 search results - page 76 / 129 » Studying Query Expansion Effectiveness |
WWW
2006
ACM
14 years 9 months ago
2006
ACM
Major search engines currently use the history of a user's actions (e.g., queries, clicks) to personalize search results. In this paper, we present a new personalized service...
EDBT
2010
ACM
14 years 2 months ago
2010
ACM
User privacy in location-based services has attracted great interest in the research community. We introduce a novel framework based on a decentralized architecture for privacy pr...
SDM
2009
SIAM
14 years 6 months ago
2009
SIAM
Query-oriented summarization aims at extracting an informative summary from a document collection for a given query. It is very useful to help users grasp the main information rel...
WSDM
2009
ACM
14 years 3 months ago
2009
ACM
We are experiencing an unprecedented increase of content contributed by users in forums such as blogs, social networking sites and microblogging services. Such abundance of conten...
FOCS
2008
IEEE
14 years 3 months ago
2008
IEEE
Relational joins are at the core of relational algebra, which in turn is the core of the standard database query language SQL. As their evaluation is expensive and very often domi...