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» A Basic Unit of Computation in Distributed Systems
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CCS
2008
ACM
13 years 10 months ago
Assessing query privileges via safe and efficient permission composition
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
Sabrina De Capitani di Vimercati, Sara Foresti, Su...
CONCUR
2009
Springer
14 years 3 months ago
Partially-Commutative Context-Free Processes
Bisimulation equivalence is decidable in polynomial time for both sequential and commutative normed context-free processes, known as BPA and BPP, respectively. Despite apparent sim...
Wojciech Czerwinski, Sibylle B. Fröschle, Sla...
HPCS
2006
IEEE
14 years 2 months ago
Toward a Software Infrastructure for the Cyclops-64 Cellular Architecture
This paper presents the initial design of the Cyclops-64 (C64) system software infrastructure and tools under development as a joint effort between IBM T.J. Watson Research Center...
Juan del Cuvillo, Weirong Zhu, Ziang Hu, Guang R. ...
CSREASAM
2006
13 years 10 months ago
Reinforcing Access Control Using Fuzzy Relation Equations
Current computer security systems are based on the premise that once a user presents valid credentials to the authentication system (e.g. valid ID and password), they are granted ...
Ali Berrached, André de Korvin
PPOPP
2010
ACM
14 years 6 months ago
Fast tridiagonal solvers on the GPU
We study the performance of three parallel algorithms and their hybrid variants for solving tridiagonal linear systems on a GPU: cyclic reduction (CR), parallel cyclic reduction (...
Yao Zhang, Jonathan Cohen, John D. Owens