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SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Search engine click logs provide an invaluable source of relevance information but this information is biased because we ignore which documents from the result list the users have...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
We consider the problem of large scale retrieval evaluation. Recently two methods based on random sampling were proposed as a solution to the extensive effort required to judge te...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
The classical probabilistic models attempt to capture the Ad hoc information retrieval problem within a rigorous probabilistic framework. It has long been recognized that the prim...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Many ranking models have been proposed in information retrieval, and recently machine learning techniques have also been applied to ranking model construction. Most of the existin...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
This paper addresses the issue of query refinement, which involves reformulating ill-formed search queries in order to enhance relevance of search results. Query refinement typica...