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129
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COLCOM
2008
IEEE
15 years 10 months ago
A Constraint and Attribute Based Security Framework for Dynamic Role Assignment in Collaborative Environments
Abstract. We investigate a security framework for collaborative applications that relies on the role-based access control (RBAC) model. In our framework, roles are pre-defined and...
Isabel F. Cruz, Rigel Gjomemo, Benjamin Lin, Mirko...
PPAM
2005
Springer
15 years 9 months ago
Checkpointing Speculative Distributed Shared Memory
This paper describes a checkpointing mechanism destined for Distributed Shared Memory (DSM) systems with speculative prefetching. Speculation is a general technique involving predi...
Arkadiusz Danilecki, Anna Kobusinska, Michal Szych...
106
Voted
STACS
1999
Springer
15 years 8 months ago
Worst-case Equilibria
We investigate the problem of routing traffic through a congested network in an environment of non-cooperative users. We use the worst-case coordination ratio suggested by Koutsou...
Elias Koutsoupias, Christos H. Papadimitriou
180
Voted
CGF
2011
14 years 7 months ago
Two-Level Grids for Ray Tracing on GPUs
We investigate the use of two-level nested grids as acceleration structure for ray tracing of dynamic scenes. We propose a massively parallel, sort-based construction algorithm an...
Javor Kalojanov, Markus Billeter, Philipp Slusalle...
P2P
2006
IEEE
153views Communications» more  P2P 2006»
15 years 10 months ago
Internet-Scale Storage Systems under Churn -- A Study of the Steady-State using Markov Models
Content storage in a distributed collaborative environment uses redundancy for better resilience and thus provides good availability and durability. In a peer-to-peer environment,...
Anwitaman Datta, Karl Aberer