482 search results - page 12 / 97 » Selectivity Estimation in Spatial Databases |
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Given a set of points P and a query point q, the reverse furthest neighbor (RFN) query fetches the set of points p P such that q is their furthest neighbor among all points in P {...
SIGMOD
1998
ACM
14 years 5 days ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
JCNS
2006
13 years 8 months ago
2006
Stimulus selectivity of sensory systems is often characterized by analyzing responseconditioned stimulus ensembles. However, in many cases these response-triggered stimulus sets h...
CIVR
2004
Springer
14 years 1 months ago
2004
Springer
We describe an original method for selecting key frames to represent the content of every shot in a video. We aim at spatially sampling in an uniform way the coverage of the scene ...
ICDE
2007
IEEE
14 years 2 months ago
2007
IEEE
Existing index selection tools rely on heuristics to efficiently search within the large space of alternative solutions and to minimize the overhead of using the query optimizer ...