429 search results - page 45 / 86 » A SAT approach to query optimization in mediator systems |
COOPIS
2002
IEEE
14 years 1 months ago
2002
IEEE
Mobile services offering multi-feature query capabilities must meet tough response time requirements to gain customer acceptance. The top-k query model is a popular candidate to im...
ICMCS
2000
IEEE
14 years 1 months ago
2000
IEEE
We describe a subsystem of a content-based image retrieval (CBIR) environment that supports a user in the definition of image similarity. Out of a single image or a set of query i...
COOPIS
2004
IEEE
14 years 13 days ago
2004
IEEE
Abstract. We consider the use of a cluster system for managing autonomous databases. In order to improve the performance of read-only queries, we strive to exploit user requirement...
PR
2006
13 years 8 months ago
2006
For the management of digital document collections, automatic database analysis still has ties to deal with semantic queries and abstract concepts that users are looking for. When...
CCGRID
2003
IEEE
14 years 2 months ago
2003
IEEE
SRS is a widely used system for integrating biological databases. Currently, SRS relies only on locally provided copies of these databases. In this paper we propose a mechanism th...