Sciweavers

6004 search results - page 140 / 1201
» Parallelizing query optimization
Sort
View
ICDE
2008
IEEE
118views Database» more  ICDE 2008»
14 years 11 months ago
Robust Runtime Optimization of Data Transfer in Queries over Web Services
Self-managing solutions have recently attracted a lot of interest from the database community. The need for self-* properties is more evident in distributed applications comprising...
Anastasios Gounaris, Christos Yfoulis, Rizos Sakel...
WISE
2007
Springer
14 years 4 months ago
Optimization of Bounded Continuous Search Queries Based on Ranking Distributions
A common search problem in the World Wide Web concerns finding information if it is not known when the sources of information appear and how long sources will be available on the ...
Dirk Kukulenz, Nils Hoeller, Sven Groppe, Volker L...
DAWAK
2001
Springer
14 years 2 months ago
Optimization Algorithms for Simultaneous Multidimensional Queries in OLAP Environments
Multi-Dimensional Expressions (MDX) provide an interface for asking several related OLAP queries simultaneously. An interesting problem is how to optimize the execution of an MDX q...
Panos Kalnis, Dimitris Papadias
ICUIMC
2011
ACM
13 years 1 months ago
Overhead analysis of query localization optimization and routing
Query localization is an improved extension of on-demand routing protocols for ad hoc networks. It makes use of prior routing histories to localize the query flood to a limited re...
Wenzheng Xu, Yongmin Zhang, Weifa Liang
SIGMOD
2001
ACM
229views Database» more  SIGMOD 2001»
14 years 10 months ago
A Robust, Optimization-Based Approach for Approximate Answering of Aggregate Queries
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
Surajit Chaudhuri, Gautam Das, Vivek R. Narasayya