736 search results - page 13 / 148 » A Flexible Database Authorization System |
102
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SACMAT
2003
ACM
15 years 5 months ago
2003
ACM
Role-based access control (RBAC) is recognized as an efficient access control model for large organizations. Most organizations have some business rules related to access control...
CCS
2006
ACM
15 years 3 months ago
2006
ACM
The usage control (UCON) model was introduced as a unified approach to capture a number of extensions for traditional access control models. While the policy specification flexibi...
VLDB
2007
ACM
15 years 5 months ago
2007
ACM
PageRank-style authority analyses of Web graphs are of great importance for Web mining. Such authority analyses also apply to hot “Web 2.0” applications that exhibit a natural...
103
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VLDB
1990
ACM
15 years 3 months ago
1990
ACM
Real-time database systems incorporate the notion of a deadline into the database system model. USUally, deadlines are associated with transactions, and the system attempts to exe...
VLDB
2002
ACM
14 years 11 months ago
2002
ACM
Schema matching is the task of finding semantic correspondences between elements of two schemas. It is needed in many database applications, such as integration of web data source...