829 search results - page 68 / 166 » Location-aware Query Processing and Optimization |
ECML
2005
Springer
15 years 6 months ago
2005
Springer
This paper examines the problem of finding an optimal policy for a Partially Observable Markov Decision Process (POMDP) when the model is not known or is only poorly specified. W...
130
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GIS
2010
ACM
14 years 10 months ago
2010
ACM
Social networking applications have become very important web services that provide Internet-based platforms for their users to interact with their friends. With the advances in t...
FGCS
2000
15 years 11 days ago
2000
This paper focuses on parallel query optimization. We consider the operator problem and introduce a new class of execution strategies called Linear-Oriented Bushy Trees (LBTs). Co...
101
Voted
ICDE
2010
IEEE
16 years 9 days ago
2010
IEEE
A fundamental problem in XML query processing is tree pattern query (TPQ) matching which computes all data instances in an XML database that match an input TPQ. There is a lot of r...
79
Voted
WAIM
2004
Springer
15 years 6 months ago
2004
Springer
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...