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CEC
2010
IEEE
14 years 10 months ago
An analysis of the operation of differential evolution at high and low crossover rates
Abstract—A key parameter affecting the operation of differential evolution (DE) is the crossover rate Cr ∈ [0, 1]. While very low values are recommended for and used with separ...
James Montgomery, Stephen Chen
WWW
2008
ACM
15 years 10 months ago
Learning to rank relational objects and its application to web search
Learning to rank is a new statistical learning technology on creating a ranking model for sorting objects. The technology has been successfully applied to web search, and is becom...
Tao Qin, Tie-Yan Liu, Xu-Dong Zhang, De-Sheng Wang...
ECAI
2004
Springer
15 years 3 months ago
Tractable Symmetry Breaking Using Restricted Search Trees
We present a new conceptual abstraction in symmetry breaking – the GE-tree. The construction and traversal of a GE-tree breaks all symmetries in any constraint satisfaction or si...
Colva M. Roney-Dougal, Ian P. Gent, Tom Kelsey, St...
IJCAI
2007
14 years 11 months ago
Forward Search Value Iteration for POMDPs
Recent scaling up of POMDP solvers towards realistic applications is largely due to point-based methods which quickly converge to an approximate solution for medium-sized problems...
Guy Shani, Ronen I. Brafman, Solomon Eyal Shimony
CORR
2010
Springer
112views Education» more  CORR 2010»
14 years 10 months ago
Transdichotomous Results in Computational Geometry, II: Offline Search
We reexamine fundamental problems from computational geometry in the word RAM model, where input coordinates are integers that fit in a machine word. We develop a new algorithm fo...
Timothy M. Chan, Mihai Patrascu