432 search results - page 75 / 87 » A Set-Theoretic Data Model For Evolving Database Environment... |
CCS
2007
ACM
14 years 1 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 ...
EDBT
2010
ACM
14 years 2 months ago
2010
ACM
Information networks are ubiquitous in many applications and analysis on such networks has attracted significant attention in the academic communities. One of the most important ...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We consider the problem of estimating set-expression cardinality in a distributed streaming environment where rapid update streams originating at remote sites are continually tran...
BMCBI
2007
13 years 7 months ago
2007
Several systems have been presented in the last years in order to manage the complexity of large microarray experiments. Although good results have been achieved, most systems ten...
INFOVIS
2005
IEEE
14 years 1 months ago
2005
IEEE
Exploratory visualization environments allow users to build and browse coordinated multiview visualizations interactively. As the number of views and amount of coordination increa...