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CCS
1998
ACM
15 years 2 months ago
A Security Architecture for Computational Grids
State-of-the-art and emerging scientific applications require fast access to large quantities of data and commensurately fast computational resources. Both resources and data are ...
Ian T. Foster, Carl Kesselman, Gene Tsudik, Steven...
CCS
2007
ACM
15 years 4 months ago
Managing RBAC states with transitive relations
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 ...
Chaoyi Pang, David P. Hansen, Anthony J. Maeder
MOBIDE
2003
ACM
15 years 3 months ago
XML three-way merge as a reconciliation engine for mobile data
Optimistic replication approaches are often employed on mobile devices, which raises the need for reconciliation of concurrently modified data. We propose that three-way merging ...
Tancred Lindholm
SIGMOD
2007
ACM
165views Database» more  SIGMOD 2007»
15 years 10 months ago
Statistical analysis of sketch estimators
Sketching techniques can provide approximate answers to aggregate queries either for data-streaming or distributed computation. Small space summaries that have linearity propertie...
Florin Rusu, Alin Dobra
CCGRID
2007
IEEE
15 years 4 months ago
A Semantic Approach to Enhance Service Composition in Workflows that use Mobile Services
The successful execution of workflows using mobile services is dependant on the services behaving as expected. The management of this behaviour in Akogrimo is achieved by a contex...
Robert B. Piotter, Tom Kirkham, Julian R. Gallop, ...