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ORL
2007
72views more  ORL 2007»
13 years 4 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»
13 years 4 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»
13 years 4 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»
13 years 4 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»
13 years 4 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