651 search results - page 50 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
The skyline of a set of d-dimensional points contains the points that are not dominated by any other point on all dimensions. Skyline computation has recently received considerabl...
GCC
2003
Springer
14 years 2 months ago
2003
Springer
Management of various complex resources is an important issue to be well done, in order to fulfill the potential of Grid. In this paper, we propose a formal data model and algebra ...
COMPGEOM
2010
ACM
14 years 2 months ago
2010
ACM
Orthogonal range reporting is the problem of storing a set of n points in d-dimensional space, such that the k points in an axis-orthogonal query box can be reported efficiently. ...
BTW
2005
Springer
14 years 2 months ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
WWW
2006
ACM
14 years 9 months ago
2006
ACM
We introduce a new, powerful class of text proximity queries: find an instance of a given "answer type" (person, place, distance) near "selector" tokens matchi...