529 search results - page 22 / 106 » A User-Centered Approach for Evaluating Query Expansion Meth... |
WWW
2006
ACM
14 years 8 months ago
2006
ACM
We introduce the notion of query substitution, that is, generating a new query to replace a user's original search query. Our technique uses modifications based on typical su...
EDBT
2010
ACM
14 years 2 months ago
2010
ACM
There are two broad approaches to query evaluation over probabilistic databases: (1) Intensional Methods proceed by manipulating expressions over symbolic events associated with u...
CHI
2006
ACM
14 years 8 months ago
2006
ACM
Research in Ambient Intelligence and Ubiquitous Computing has put computational devices into many social settings while leaving intact much of the "task support and informati...
VLDB
1987
ACM
13 years 11 months ago
1987
ACM
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...
SIGIR
2006
ACM
14 years 1 months ago
2006
ACM
A common limitation of many retrieval models, including the recently proposed axiomatic approaches, is that retrieval scores are solely based on exact (i.e., syntactic) matching o...