481 search results - page 51 / 97 » Towards Scalable Information Spaces |
SACMAT
2009
ACM
14 years 2 months ago
2009
ACM
An access control system is often viewed as a state transition system. Given a set of access control policies, a general safety requirement in such a system is to determine whethe...
CCS
2008
ACM
13 years 9 months ago
2008
ACM
To ensure that a trust negotiation succeeds whenever possible, authorization policy compliance checkers must be able to find all minimal sets of their owners' credentials tha...
WICON
2008
13 years 9 months ago
2008
Mobile ad hoc networks range from traditional MANETs where end-to-end paths exist from sources to destinations, to DTNs where no contemporaneous end-to-end paths exist and communi...
CEC
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract-- This study points out some weaknesses of existing Quantum-Inspired Evolutionary Algorithms (QEA) and explains in particular how hitchhiking phenomenons can slow down the...
AAAI
1994
13 years 9 months ago
1994
We present new algorithms for local planning over Markov decision processes. The base-level algorithm possesses several interesting features for control of computation, based on s...