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» Mixed-Integer Cuts from Cyclic Groups
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MP
2007
100views more  MP 2007»
13 years 4 months ago
Mixed-Integer Cuts from Cyclic Groups
We analyze a separation procedure for Mixed-Integer Programs related to the work of Gomory and Johnson on interpolated subadditive functions. This approach has its roots in the Go...
Matteo Fischetti, Cristiano Saturni
IPCO
2004
100views Optimization» more  IPCO 2004»
13 years 6 months ago
Valid Inequalities Based on Simple Mixed-Integer Sets
In this paper we use facets of simple mixed-integer sets with three variables to derive a parametric family of valid inequalities for general mixed-integer sets. We call these ine...
Sanjeeb Dash, Oktay Günlük
IPCO
2008
136views Optimization» more  IPCO 2008»
13 years 6 months ago
Computing with Multi-row Gomory Cuts
Recent advances on the understanding of valid inequalities from the infinite group relaxation has opened the possibility of finding a computationally effective extension to GMI cu...
Daniel G. Espinoza
IPCO
2007
98views Optimization» more  IPCO 2007»
13 years 6 months ago
On a Generalization of the Master Cyclic Group Polyhedron
We study the Master Equality Polyhedron (MEP) which generalizes the Master Cyclic Group Polyhedron and the Master Knapsack Polyhedron. We present an explicit characterization of t...
Sanjeeb Dash, Ricardo Fukasawa, Oktay Günl&uu...
MP
2008
105views more  MP 2008»
13 years 4 months ago
On the strength of Gomory mixed-integer cuts as group cuts
Gomory mixed-integer (GMI) cuts generated from optimal simplex tableaus are known to be useful in solving mixed-integer programs. Further, it is well-known that GMI cuts can be de...
Sanjeeb Dash, Oktay Günlük