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CEC
2005
IEEE
15 years 3 months ago
Constraint quadratic approximation operator for treating equality constraints with genetic algorithms
Abstract- This paper presents a new operator for genetic algorithms that enhances their convergence in the case of nonlinear problems with nonlinear equality constraints. The propo...
Elizabeth F. Wanner, Frederico G. Guimarães...
SIGMOD
2010
ACM
210views Database» more  SIGMOD 2010»
14 years 10 months ago
Searching trajectories by locations: an efficiency study
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
Zaiben Chen, Heng Tao Shen, Xiaofang Zhou, Yu Zhen...
IAT
2007
IEEE
15 years 4 months ago
CompAPO: A Complete Version of the APO Algorithm
Asynchronous Partial Overlay (APO) is a search algorithm that uses cooperative mediation to solve Distributed Constraint Satisfaction Problems (DisCSPs). The algorithm partitions ...
Tal Grinshpoun, Amnon Meisels
PETRA
2009
ACM
15 years 4 months ago
Towards faster activity search using embedding-based subsequence matching
Event search is the problem of identifying events or activity of interest in a large database storing long sequences of activity. In this paper, our topic is the problem of identi...
Panagiotis Papapetrou, Paul Doliotis, Vassilis Ath...
CP
2006
Springer
15 years 1 months ago
Static and Dynamic Structural Symmetry Breaking
We reconsider the idea of structural symmetry breaking (SSB) for constraint satisfaction problems (CSPs). We show that the dynamic dominance checks used in symmetry breaking by dom...
Pierre Flener, Justin Pearson, Meinolf Sellmann, P...