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DISOPT
2007
155views more  DISOPT 2007»
13 years 5 months ago
Linear-programming design and analysis of fast algorithms for Max 2-CSP
The class Max (r, 2)-CSP (or simply Max 2-CSP) consists of constraint satisfaction problems with at most two r-valued variables per clause. For instances with n variables and m bin...
Alexander D. Scott, Gregory B. Sorkin
DISOPT
2007
93views more  DISOPT 2007»
13 years 5 months ago
A feasibility pump heuristic for general mixed-integer problems
Finding a feasible solution of a given Mixed-Integer Programming (MIP) model is a very important (NP-complete) problem that can be extremely hard in practice. Very recently, Fisch...
Livio Bertacco, Matteo Fischetti, Andrea Lodi
DISOPT
2008
91views more  DISOPT 2008»
13 years 5 months ago
Partition inequalities for capacitated survivable network design based on directed p-cycles
We study the design of capacitated survivable networks using directed p-cycles. A p-cycle is a cycle with at least three arcs, used for rerouting disrupted flow during edge failur...
Alper Atamtürk, Deepak Rajan
DISOPT
2007
81views more  DISOPT 2007»
13 years 5 months ago
Strong polynomiality of resource constraint propagation
Constraint-based schedulers have been widely successful to tackle complex, disjunctive and cumulative, scheduling applications by combining tree search and constraint propagation....
Luc Mercier, Pascal Van Hentenryck
DISOPT
2011
175views Education» more  DISOPT 2011»
12 years 9 months ago
Strengthening lattice-free cuts using non-negativity
In recent years there has been growing interest in generating valid inequalities for mixedinteger programs using sets with 2 or more constraints. In particular, Andersen et al. (2...
Ricardo Fukasawa, Oktay Günlük