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 ...
Business applications are more and more often developed on the basis of Web services. The aim is to provide platform independence and loose coupling between business applications ...
-- To date, not enough attention has been paid to issues surrounding the description and enforcement of policies for controlling Grid resources. These policies define the permitted...
— Currently deployed grids gather together thousands of computational and storage resources for the benefit of a large community of scientists. However, the large scale, the wid...
Alexandru Iosup, Mathieu Jan, Omer Ozan Sonmez, Di...
Process arrival pattern, which denotes the timing when different processes arrive at an MPI collective operation, can have a significant impact on the performance of the operatio...