651 search results - page 65 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
COOPIS
1999
IEEE
14 years 1 months ago
1999
IEEE
There is currently great interest in building information mediators that can integrate informationfrom multipledata sources such as databases or Web sources. The query response ti...
CORR
2010
Springer
13 years 9 months ago
2010
Springer
Consider a family of sets and a single set, called the query set. How can one quickly find a member of the family which has a maximal intersection with the query set? Time constra...
SSD
2005
Springer
14 years 2 months ago
2005
Springer
Abstract. Query optimization is an important functionality of modern database systems and often based on estimating the selectivity of queries before actually executing them. Well-...
DEXAW
2005
IEEE
14 years 2 months ago
2005
IEEE
Increasing popularity of XML and P2P networks has generated much interest in distributed processing of XML data. We propose a novel solution organized around a mediator capable of...
INFOCOM
2008
IEEE
14 years 3 months ago
2008
IEEE
—We study the problem of data-driven routing and navigation in a distributed sensor network over a continuous scalar field. Specifically, we address the problem of searching fo...