Results 121 to 130 of about 724 (154)
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Quadratic Convex Reformulations for Integer and Mixed-Integer Quadratic Programs

Profiles in Operations Research, 2017
We review recent advances in the quadratic convex reformulation (QCR) approach that is employed to derive efficient equivalent reformulations for mixed-integer quadratically constrained quadratic programming (MIQCQP) problems. Although MIQCQP problems can be directly plugged into and solved by standard MIQP solvers that are based on branch-and-bound ...
Rujun Jiang, Baiyi Wu
exaly   +2 more sources

Quadratic convex reformulation for graph partitionning problems [PDF]

open access: yes, 2013
Many graph partitionning problems can be formulated by quadratic programs (QP) with binary variables and linear and quadratic constraints. We apply the general approach that consists in first reformulating the initial (QP) into an equivalent program (QP ).
Elloumi, Sourour, Lambert, Amélie
core   +6 more sources

Quadratic convex reformulations for a class of complex quadratic programming problems

Computational Optimization and Applications
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhibin Deng
exaly   +3 more sources

Convex reformulations for binary quadratic programs [PDF]

open access: yes, 2009
-Let (QP) be a binary quadratic program that consists in minimizing a quadratic function subject to linear constraints. To solve (QP) we reformulate it into an equivalent program with a convex objective function. Our reformulation, that we call EQCR (Extended Quadratic Convex Reformulation), is optimal from the continuous relaxation bound point of view.
Billionnet, Alain   +2 more
core   +4 more sources

Convex reformulation for binary quadratic programming problems via average objective value maximization

Optimization Letters, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cheng Lu 0007, Xiaoling Guo
exaly   +2 more sources

Global solution of mixed-integer quadratic programs through quadratic convex reformulation [PDF]

open access: yes, 2013
We review the quadratic convex reformulation approach for quadratic programs with integer variables. We also show the recent extensions to quadratically constrained programs and to the case of mixed-integer variables. In all these extensions, the global framework is the same: in a preprocessing step, we compute a tight equivalent reformulation of the ...
Elloumi, Sourour   +2 more
core   +4 more sources

Convex reformulations for integer quadratic programs [PDF]

open access: yes, 2009
-Let (QP) be an integer quadratic program that consists in minimizing a quadratic functionsubject to linear constraints. To solve (QP), we reformulate it into an equivalent program with a convex objective function, and we use a Mixed Integer Quadratic Programming solver. This reformulation, called IQCR, is optimal in a certain sense from the continuous
Billionnet, Alain   +2 more
core   +4 more sources

Quadratic Convex Reformulation for discrete quadratic optimization : Basic results and recent extensions [PDF]

open access: yes, 2014
We consider problem (QP) of minimizing a quadratic function subject to linear or quadratic constraints. Variables are integer and bounded. This very general problem can model many classical problems in Combinatorial Optimization.A major difference between (QP) and integer linear programs lies in the fact that, in general, its continuous relaxation is ...
Elloumi, Sourour
core   +4 more sources

Convex reformulations of Integer Quadratically Constrained Problems [PDF]

open access: yes, 2012
We consider a general integer program (QQP) where both the objective function and the constraints are quadratic. We show that the quadratic convex reformulation approach can be extended to that case. This approach consists in designing a program, equivalent to QQP, with a quadratic convex objective function and linear or quadratic convex constraints ...
Billionnet, Alain   +2 more
core   +4 more sources

A unified view of linear and quadratic convex reformulations for binary quadratic programming [PDF]

open access: yes, 2012
We consider binary quadratic programs (QP) having a quadratic objectivefunction, linear constraints, and binary variables. Many classical solution methods ofthese problems are based on exact reformulation of QP into anequivalent mixed integer linear program. Several linearization methods werestudied in the literature.
Elloumi, Sourour
core   +4 more sources

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