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AAAI
2006
15 years 8 months ago
A Quadratic Propagator for the Inter-Distance Constraint
We present a new propagator achieving bound consistency for the INTER-DISTANCE constraint. This constraint ensures that, among a set of variables X1, . . . , Xn, the difference be...
Claude-Guy Quimper, Alejandro López-Ortiz, ...
COLCOM
2008
IEEE
16 years 1 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...
GLOBECOM
2008
IEEE
16 years 1 months ago
Dynamic Wavelength Routing in WDM Networks under Multiple Signal Quality Constraints
—Most research works in routing and design of optical networks assume that the optical medium can carry signals without any bit error. However, the physical impairments on the op...
Weiyi Zhang, Guoliang Xue, Jian Tang, Krishnaiyan ...
IDEAS
2007
IEEE
107views Database» more  IDEAS 2007»
16 years 29 days ago
Examining the Performance of a Constraint-Based Database Cache
Constraint-based database caching aims at correctly answering SQL query predicates from a local cache database by exploiting constraints that have previously been used in selectin...
Andreas Bühmann, Joachim Klein 0002
177
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WAOA
2007
Springer
109views Algorithms» more  WAOA 2007»
16 years 23 days ago
Approximation Schemes for Packing Splittable Items with Cardinality Constraints
We continue the study of bin packing with splittable items and cardinality constraints. In this problem, a set of items must be packed into as few bins as possible. Items may be s...
Leah Epstein, Rob van Stee