285 search results - page 41 / 57 » Optimization of Real Conjunctive Queries |
VLDB
1998
ACM
13 years 11 months ago
1998
ACM
Users often can not easily express their queries. For example, in a multimedia image by content setting, the user might want photographs with sunsets; in current systems, like QBI...
EDBT
1998
ACM
13 years 11 months ago
1998
ACM
Abstract. In this paper, we propose a new bulk-loading technique for high-dimensional indexes which represent an important component of multimedia database systems. Since it is ver...
RR
2010
Springer
13 years 5 months ago
2010
Springer
Role-based access control is a standard mechanism in information systems. Based on the role a user has, certain information is kept from the user even if requested. For ontologies ...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
In [12] we introduce a novel architecture for data processing, based on a functional fusion between a data and a computation layer. In this demo we show how this architecture is le...
RTCSA
2009
IEEE
14 years 2 months ago
2009
IEEE
—Mobile sensors are widely deployed in Wireless Sensor Networks (WSNs) to satisfy emerging application requirements. Specifically, processing location dependent queries in mobile...