Results 41 to 50 of about 411 (101)

Improving strong branching by domain propagation

open access: yesEURO Journal on Computational Optimization, 2014
One of the essential components of a branch-and-bound based mixed-integer linear programming (MIP) solver is the branching rule. Strong branching is a method used by many state-of-the-art branching rules to select the variable to branch on.
Gerald Gamrath
doaj   +1 more source

On global optimization with indefinite quadratics

open access: yesEURO Journal on Computational Optimization, 2017
We present an algorithmic framework for global optimization problems in which the non-convexity is manifested as an indefinite-quadratic as part of the objective function.
Marcia Fampa, Jon Lee, Wendel Melo
doaj   +1 more source

Matheuristics for optimizing the network in German wagonload traffic

open access: yesEURO Journal on Computational Optimization, 2017
In this paper, we consider a capacitated multiple allocation hub location problem derived from a practical application in network design of German wagonload traffic.
Julia Sender   +3 more
doaj   +1 more source

Unbounded convex sets for non-convex mixed-integer quadratic programming [PDF]

open access: yes, 2014
This paper introduces a fundamental family of unbounded convex sets that arises in the context of non-convex mixed-integer quadratic programming.
Burer, Samuel, Letchford, Adam
core  

Stabilized Benders methods for large-scale combinatorial optimization, with appllication to data privacy [PDF]

open access: yes, 2017
The Cell Suppression Problem (CSP) is a challenging Mixed-Integer Linear Problem arising in statistical tabular data protection. Medium sized instances of CSP involve thousands of binary variables and million of continuous variables and constraints ...
Baena, Daniel   +2 more
core   +1 more source

Solving wind farm layout optimization with mixed integer programs and constraint programs

open access: yesEURO Journal on Computational Optimization, 2014
The wind farm layout optimization problem is concerned with the optimal location of turbines within a fixed geographical area to maximize profit under stochastic wind conditions. Previously, it has been modeled as a maximum diversity (or p-dispersion-sum)
PeterY. Zhang   +3 more
doaj   +1 more source

Uncapacitated Lot-Sizing with Stock Upper Bounds, Stock Fixed Costs, Stock Overloads and Backlogging: A Tight Formulation [PDF]

open access: yes, 2015
For an n-period uncapacitated lot-sizing problem with stock upper bounds, stock fixed costs, stock overload and backlogging, we present a tight extended shortest path formulation of the convex hull of solutions with O(n^2) variables and constraints, also
Wolsey, Laurence
core  

Optimizing compatible sets in wireless networks through integer programming

open access: yesEURO Journal on Computational Optimization, 2014
In wireless networks, the notion of compatible set refers to a set of radio links that can be simultaneously active with a tolerable interference. Finding a compatible set with maximum weighted revenue from the parallel transmissions is an important ...
Yuan Li   +3 more
doaj   +1 more source

Tighter MIP formulations for the discretised unit commitment problem with min-stop ramping constraints

open access: yesEURO Journal on Computational Optimization, 2017
This paper elaborates compact MIP formulations for a discrete unit commitment problem with minimum stop and ramping constraints. The variables can be defined in two different ways.
Nicolas Dupin
doaj   +1 more source

Electric Vehicle Routing Problem: A Review of Recent Approaches and Algorithms

open access: yesStudia Universitatis Babes-Bolyai: Series Informatica
With the rapid advancement of new energy vehicles, electric vehicles (EVs) have become integral to modern transportation systems. Compared with traditional fuel vehicles, EVs are limited by their limited battery capacity and require reasonable charging ...
Yingkai XU
doaj   +1 more source

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