116 search results - page 21 / 24 » Database querying under changing preferences |
CCS
2007
ACM
13 years 12 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
ICDE
2009
IEEE
13 years 3 months ago
2009
IEEE
Search over graph databases has attracted much attention recently due to its usefulness in many fields, such as the analysis of chemical compounds, intrusion detection in network t...
DAWAK
2005
Springer
13 years 7 months ago
2005
Springer
Abstract. Data mining is an iterative process. Users issue series of similar data mining queries, in each consecutive run slightly modifying either the definition of the mined dat...
NETWORK
2008
13 years 5 months ago
2008
Consider a scenario where Jane is at an airport. She wants to find a restaurant with healthy food and short waiting time on the way to her terminal. The airport can provide such s...
IPPS
2005
IEEE
13 years 11 months ago
2005
IEEE
In recent years, we have seen a dramatic increase in the use of data-centric distributed systems such as global grid infrastructures, sensor networks, network monitoring, and vari...