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ORL
2007
72views more  ORL 2007»
14 years 11 months ago
Colorings of k-balanced matrices and integer decomposition property of related polyhedra
We show that a class of polyhedra, arising from certain 0, 1 matrices introduced by Truemper and Chandrasekaran, has the integer decomposition property. This is accomplished by pr...
Giacomo Zambelli
ORL
2007
50views more  ORL 2007»
14 years 11 months ago
NP-Hardness of checking the unichain condition in average cost MDPs
The unichain condition requires that every policy in an MDP result in a single ergodic class, and guarantees that the optimal average cost is independent of the initial state. We ...
John N. Tsitsiklis
ORL
2007
102views more  ORL 2007»
14 years 11 months ago
Using critical sets to solve the maximum independent set problem
A method that utilizes the polynomially solvable critical independent set problem for solving the maximum independent set problem on graphs with a nonempty critical independent se...
Sergiy Butenko, Svyatoslav Trukhanov
ORL
2007
54views more  ORL 2007»
14 years 11 months ago
A new lower bound for the non-oriented two-dimensional bin-packing problem
We propose a new scheme for computing lower bounds for the non-oriented bin-packing problem when the bin is a square. It leads to bounds that theoretically dominate previous resul...
François Clautiaux, Antoine Jouglet, Joseph...
ORL
2007
108views more  ORL 2007»
14 years 11 months ago
Convergence properties of the cross-entropy method for discrete optimization
We present new theoretical convergence results on the Cross-Entropy method for discrete optimization. Our primary contribution is to show that a popular implementation of the Cros...
Andre Costa, Owen Dafydd Jones, Dirk P. Kroese