Gomory cuts in integer programming

E718425

Gomory cuts in integer programming are a class of cutting-plane techniques that iteratively refine linear programming relaxations to find optimal integer solutions to mixed-integer optimization problems.

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Predicate Object
instanceOf cutting-plane method
integer programming technique
optimization method
appliedAt nodes of a branch-and-bound tree
appliesTo mixed-integer linear programming
pure integer linear programming
assumption variables have integrality restrictions
basedOn linear programming relaxation
belongsTo polyhedral theory of integer programming
canBe generated automatically by MIP solvers
category exact algorithmic technique
characteristic derived from simplex tableau rows
separate current fractional solution
valid inequalities for integer hull
developedBy Ralph E. Gomory
effect tightens feasible region toward integer hull
field integer programming
mathematical optimization
operations research
goal eliminate fractional solutions
enforce integrality of variables
tighten LP relaxation
hasVariant Gomory fractional cut
Gomory mixed-integer cut
pure-integer Gomory cut
implementedIn commercial MILP solvers
open-source MILP solvers
improves lower bound for maximization problems
upper bound for minimization problems
influenced development of modern cutting-plane methods
introducedIn 1950s
methodType cutting-plane algorithm
iterative refinement method
namedAfter Ralph E. Gomory
property can be applied iteratively until integrality is reached
do not remove any feasible integer solution
remove at least the current fractional LP solution
relatedTo Chvátal–Gomory cuts
branch-and-cut
simplex method
requires fractional basic variable in tableau
typicalInput optimal basis of LP relaxation
typicalOutput linear inequality added to LP
usedFor finding optimal integer solutions
improving bounds in branch-and-bound
solving mixed-integer optimization problems

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Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ralph E. Gomory notableWork Gomory cuts in integer programming
Ralph E. Gomory notableFor Gomory cuts
subject linked to: Gomory
linked to: Gomory cuts in integer programming
Gomory cuts hasVariant Gomory fractional cut
linked to: Gomory cuts in integer programming
Gomory cuts hasVariant Gomory mixed-integer cut
linked to: Gomory cuts in integer programming
Gomory cuts hasVariant pure-integer Gomory cut
linked to: Gomory cuts in integer programming
Gomory cuts relatedTo Chvátal–Gomory cuts
linked to: Gomory cuts in integer programming