574 search results - page 55 / 115 » Distributed Queries and Query Optimization in Schema-Based P... |
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Increasing prevalence of large-scale distributed monitoring and computing environments such as sensor networks, scientific federations, Grids etc., has led to a renewed interest in...
FOCS
2000
IEEE
14 years 1 months ago
2000
IEEE
We consider the planar point location problem from the perspective of expected search time. We are given a planar polygonal subdivision S and for each polygon of the subdivision t...
VLDB
1999
ACM
14 years 1 months ago
1999
ACM
This paper aims to improve the accuracy of query result-size estimations in query optimizers by leveraging the dynamic feedback obtained from observations on the executed query wo...
SIGMOD
1998
ACM
14 years 1 months ago
1998
ACM
Remote data access from disparate sources across a widearea network such as the Internet is problematic due to the unpredictable nature of the communications medium and the lack o...
ALENEX
2001
13 years 10 months ago
2001
In nearest neighbor searching we are given a set of n data points in real d-dimensional space, d , and the problem is to preprocess these points into a data structure, so that give...