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» Independence of Negative Constraints
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DSN
2007
IEEE
15 years 4 months ago
Measuring Availability in Optimistic Partition-Tolerant Systems with Data Constraints
Replicated systems that run over partitionable environments, can exhibit increased availability if isolated partitions are allowed to optimistically continue their execution indep...
Mikael Asplund, Simin Nadjm-Tehrani, Stefan Beyer,...
ICLP
2005
Springer
15 years 3 months ago
HYPROLOG: A New Logic Programming Language with Assumptions and Abduction
We present HYPROLOG, a novel integration of Prolog with assumptions and abduction which is implemented in and partly borrows syntax from Constraint Handling Rules (CHR) for integri...
Henning Christiansen, Verónica Dahl
SIGMOD
1999
ACM
132views Database» more  SIGMOD 1999»
15 years 2 months ago
Mind Your Vocabulary: Query Mapping Across Heterogeneous Information Sources
In this paper we present a mechanism for translating constraint queries, i.e., Boolean expressions of constraints, across heterogeneous information sources. Integrating such syste...
Kevin Chen-Chuan Chang, Hector Garcia-Molina
GECCO
2009
Springer
159views Optimization» more  GECCO 2009»
15 years 2 months ago
Bayesian network structure learning using cooperative coevolution
We propose a cooperative-coevolution – Parisian trend – algorithm, IMPEA (Independence Model based Parisian EA), to the problem of Bayesian networks structure estimation. It i...
Olivier Barrière, Evelyne Lutton, Pierre-He...
CORR
2010
Springer
111views Education» more  CORR 2010»
14 years 10 months ago
Submodular Maximization by Simulated Annealing
We consider the problem of maximizing a nonnegative (possibly non-monotone) submodular set function with or without constraints. Feige et al. [9] showed a 2/5-approximation for th...
Shayan Oveis Gharan, Jan Vondrák