565 search results - page 50 / 113 » Multiple Range Query Optimization in Spatial Databases |
COMPSAC
2002
IEEE
15 years 2 months ago
2002
IEEE
In this paper, an effective content-based visual image retrieval system is presented. This system consists of two main components: visual content extraction and indexing, and quer...
GIS
2010
ACM
14 years 8 months ago
2010
ACM
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...
SIGMOD
2001
ACM
15 years 9 months ago
2001
ACM
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
SIGMOD
1996
ACM
15 years 1 months ago
1996
ACM
Repositories of multimedia objects having multiple types of attributes e.g., image, text are becoming increasingly common. A selection on these attributes will typically produce n...
IDEAS
2003
IEEE
15 years 2 months ago
2003
IEEE
In recent years, a lot of research effort has been dedicated to the management of Quality of Service (QoS), mainly in the fields of telecommunication networks and multimedia syste...