140 search results - page 3 / 28 » Redundant Relations in Relational Databases: A Model Theoret... |
CCS
2007
ACM
13 years 11 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 ...
COMAD
2009
13 years 5 months ago
2009
The focus of this paper is to develop algorithms and a framework for modeling transactional data stored in relational database into graphs for mining. Most of the real-world trans...
ICDE
2007
IEEE
13 years 11 months ago
2007
IEEE
In this paper, we propose to deploy type-theoretic techniques to the service description and composition verification. We define a flexible type system for modeling instances a...
HICSS
1999
IEEE
13 years 9 months ago
1999
IEEE
Successful implementation of information technology (IT)-enabled strategy rests on the performance of IT professionals. Consequently, the development and retention of this "I...
ICDE
1995
IEEE
14 years 6 months ago
1995
IEEE
The model of flexible relations supports heterogeneous sets of tuples in a strongly typed way. The elegance of the standard relational model is preserved by using a single, generi...