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» Random Constraint Satisfaction: A More Accurate Picture
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WSDM
2010
ACM
197views Data Mining» more  WSDM 2010»
15 years 4 months ago
Beyond DCG: user behavior as a predictor of a successful search
Web search engines are traditionally evaluated in terms of the relevance of web pages to individual queries. However, relevance of web pages does not tell the complete picture, si...
Ahmed Hassan, Rosie Jones, Kristina Lisa Klinkner
AAI
2006
106views more  AAI 2006»
14 years 9 months ago
Metaheuristics for Handling Time Interval Coverage Constraints in Nurse Scheduling
The problem of finding a high quality timetable for personnel in a hospital ward has been addressed by many researchers, personnel managers and schedulers over a number of years. ...
Edmund K. Burke, Patrick De Causmaecker, Sanja Pet...
CORR
2006
Springer
125views Education» more  CORR 2006»
14 years 9 months ago
Barriers and local minima in energy landscapes of stochastic local search
: A local search algorithm operating on an instance of a Boolean constraint satisfaction problem (in particular, k-SAT) can be viewed as a stochastic process traversing successive ...
Petteri Kaski
FOCS
2008
IEEE
15 years 4 months ago
Beating the Random Ordering is Hard: Inapproximability of Maximum Acyclic Subgraph
We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
Venkatesan Guruswami, Rajsekar Manokaran, Prasad R...
CP
2000
Springer
15 years 1 months ago
Maintaining Arc-Consistency within Dynamic Backtracking
Most of complete search algorithms over Constraint Satisfaction Problems (csp) are based on Standard Backtracking. Two main enhancements of this basic scheme have been proposed : r...
Narendra Jussien, Romuald Debruyne, Patrice Boizum...