3274 search results - page 42 / 655 » Access Support in Object Bases |
CN
1999
13 years 8 months ago
1999
The combined benefits of smart card to support mobility in a pocket coupled with the ubiquitous access of Web technology, present a new paradigm for medical information access sys...
VLDB
1990
ACM
14 years 1 months ago
1990
ACM
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
ER
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. The development of index structures that allow e cient retrieval of spatial objects has been a topic of interest in the last decades. Most of these structures have been d...
GRID
2007
Springer
13 years 9 months ago
2007
Springer
In this paper, we present a role-based access control method for accessing databases through the Open Grid Services Architecture – Data Access and Integration (OGSA-DAI) framewor...
VLDB
2008
ACM
14 years 9 months ago
2008
ACM
Abstract In this article, we present a comprehensive approach for privacy preserving access control based on the notion of purpose. In our model, purpose information associated wit...