Results 71 to 80 of about 39,293 (207)

Isometric Cylinder Method for Strict Mixed-integer Linear Programming

open access: yes, 2009
In this paper, we solve strict mixed-integer linear programming not including integer linear programming by isometric cylinder method under the MATLAB environment. The algorithm considers the optimization problems for both whole and real variables of the
Yang LY(杨丽英)   +2 more
core  

A Mixed Integer Linear Programming Model for Train Service Improvement

open access: yes, 2022
An optimal train schedule enables the railway system to serve maximal passengers with limited resources. However, inappropriate train services may cause a diversity of adverse impacts such as service delay and long waiting times.
Ren, F, Du, B, Malysiak, K, Hu, H
core   +1 more source

Two row mixed integer cuts via lifting [PDF]

open access: yes
Recently, Andersen et al. [1], Borozan and Cornuéjols [6] and Cornuéjols and Margot [9] characterized extreme inequalities of a system of two rows with two free integer variables and nonnegative continuous variables.
WOLSEY, Laurence A., SANTANU, Dey
core  

FATCOP 2.0: Advanced Features in an Opportunistic Mixed Integer Programming Solver

open access: yes, 2000
We describe FATCOP 2.0, a new parallel mixed integer program solver that works in an opportunistic computing environment provided by the Condor resource management system.
Linderoth, Jeff   +2 more
core   +1 more source

Reformulation and decomposition of integer programs [PDF]

open access: yes
In this survey we examine ways to reformulate integer and mixed integer programs. Typically, but not exclusively, one reformulates so as to obtain stronger linear programming relaxations, and hence better bounds for use in a branch-and-bound based ...
WOLSEY , Laurence   +1 more
core  

Probability-Constrained Path Planning for UAV Logistics Using Mixed Integer Linear Programming

open access: yesModelling
In three-dimensional (3D) logistics environments, finding optimal paths for unmanned aerial vehicles (UAVs) is challenging due to positioning inaccuracies that require ground-based corrections.
Zhongxiang Chen   +3 more
doaj   +1 more source

Optimization Models for Islanded Micro-Grids: A Comparative Analysis between Linear Programming and Mixed Integer Programming

open access: yesEnergies, 2017
This paper presents a comparison of optimization methods applied to islanded micro-grids including renewable energy sources, diesel generators and battery energy storage systems.
Alberto Dolara   +3 more
doaj   +1 more source

Computer assisted modelling of linear, integer and separable programming problems

open access: yes, 1984
For mathematical programming (MP) to have greater impact upon the decision making process, MP software systems must offer suitable support in terms of model communication and modelling techniques .
Mitra, G, Darby-Dowman, K, Lucas, CA
core  

Variable neighbourhood decomposition search for 0-1 mixed integer programs

open access: yes, 2009
In this paper we propose a new hybrid heuristic for solving 0-1 mixed integer programs based on the principle of variable neighbourhood decomposition search. It combines variable neighbourhood search with a general-purpose CPLEX MIP solver.
Hanafi, S   +7 more
core   +1 more source

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