1968 search results - page 254 / 394 » The Complexity of Valued Constraint Models |
ESORICS
2007
Springer
15 years 1 months ago
2007
Springer
We propose the role-and-relation-based access control (R2 BAC) model for workflow systems. In R2 BAC, in addition to a user's role memberships, the user's relationships w...
JFP
2000
14 years 9 months ago
2000
Indeterminism is typical for concurrent computation. If several concurrent actors compete for the same resource then at most one of them may succeed, whereby the choice of the suc...
ISSRE
2010
IEEE
14 years 8 months ago
2010
IEEE
Abstract—As smart phones grow in popularity, manufacturers are in a race to pack an increasingly rich set of features into these tiny devices. This brings additional complexity i...
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SIAMCOMP
2012
13 years 13 days ago
2012
We consider online algorithms for the generalized caching problem. Here we are given a cache of size k and pages with arbitrary sizes and fetching costs. Given a request sequence ...
EDBT
2008
ACM
15 years 10 months ago
2008
ACM
Conceptual complexity is emerging as a new bottleneck as data-base developers, application developers, and database administrators struggle to design and comprehend large, complex...