Results 31 to 40 of about 39,293 (207)

Mixed Integer Linear Programming Based Speed Profile Optimization for Heavy-Haul Trains

open access: yesJournal of Advanced Transportation, 2023
Automatic heavy-haul train (HHT) operation technology has recently received considerable attention in the field of rail transportation. In this paper, a discrete-time-based mathematical formulation is proposed to address the speed profile optimization ...
Huazhen Yu   +4 more
doaj   +1 more source

Combinatorial Benders' Cuts for Mixed-Integer Linear Programming [PDF]

open access: yesOperations Research, 2006
Mixed-integer programs (MIPs) involving logical implications modeled through big-M coefficients are notoriously among the hardest to solve. In this paper, we propose and analyze computationally an automatic problem reformulation of quite general applicability, aimed at removing the model dependency on the big-M coefficients.
CODATO G, FISCHETTI, MATTEO
openaire   +1 more source

Developments in linear and integer programming

open access: yes, 2002
In this review we describe recent developments in linear and integer (linear) programming. For over 50 years Operational Research practitioners have made use of linear optimisation models to aid decision making and over this period the size of problems ...
Darby-Dowman, K, Wilson, J M
core   +1 more source

Optimizing Dynamic Evacuation Using Mixed-Integer Linear Programming

open access: yesMathematics
This study presents a new approach to optimize the dynamic evacuation process through a dynamic traffic assignment model formulated using mixed-integer linear programming (MILP).
Hamoud Bin Obaid   +4 more
doaj   +1 more source

Exact solution approaches for the workload smoothing in assembly lines

open access: yesEngineering Science and Technology, an International Journal, 2021
In this paper, the problem of minimizing the smoothness index for an assembly line given a fixed cycle time and the number of workstations is studied. This problem which is known as the workload smoothing line balancing problem (WSLBP) is a mixed-integer
Derya Dinler, Mustafa Kemal Tural
doaj   +1 more source

Production Optimization in a Grain Facility through Mixed-Integer Linear Programming

open access: yesApplied Sciences, 2022
This article introduces a Mixed-Integer Linear Programming model for cost optimization in multi-product multi-line production scheduling. This model considers discrete time windows and includes realistic constraints. The NP completeness of the problem is
Gabriel Bayá   +4 more
doaj   +1 more source

Δ-MILP: Deep Space Network Scheduling via Mixed-Integer Linear Programming

open access: yesIEEE Access, 2022
This paper introduces $\Delta $ -MILP, a powerful variant of the mixed-integer linear programming (MILP) optimization framework to solve NASA’s Deep Space Network (DSN) scheduling problem. This work is an extension of our original MILP framework (
Thomas Claudet   +5 more
doaj   +1 more source

On the interplay of Mixed Integer Linear, Mixed Integer Nonlinear and Constraint Programming [PDF]

open access: yes, 2016
In this thesis we study selected topics in the field of Mixed Integer Programming (MIP), in particular Mixed Integer Linear and Nonlinear Programming (MI(N)LP). We set a focus on the influences of Constraint Programming (CP). First, we analyze Mathematical Programming approaches to water network optimization, a set of challenging optimization ...
openaire   +2 more sources

Gap inequalities for non-convex mixed-integer quadratic programs [PDF]

open access: yes, 2011
Laurent and Poljak introduced a very general class of valid linear inequalities, called gap inequalities, for the max-cut problem. We show that an analogous class of inequalities can be defined for general non-convex mixed-integer quadratic programs ...
Galli, Laura   +8 more
core   +1 more source

A Robust Mixed-Integer Linear Programming Model for Sustainable Collaborative Distribution

open access: yesMathematics, 2021
In this paper, we propose robust optimisation models for the distribution network design problem (DNDP) to deal with uncertainty cases in a collaborative context.
Islem Snoussi   +3 more
doaj   +1 more source

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