Results 91 to 100 of about 38,337 (244)

Tighter Approximated MILP Formulations for Unit Commitment Problems [PDF]

IEEE Transactions on Power Systems, 2009
The short-term Unit Commitment (UC) problem in hydro-thermal power generation is a large-scale, Mixed-Integer NonLinear Program (MINLP), which is difficult to solve efficiently, especially for large-scale instances. It is possible to approximate the nonlinear objective function of the problem by means of piecewise-linear functions, so that UC can be ...
Frangioni A, Gentile C, Lacalandra F
openaire   +3 more sources

Collaborative platooning and routing for mixed fleets of electric automated vehicles and conventional trucks

International Transactions in Operational Research, EarlyView.
Abstract The application of automated ground vehicles (AGVs) is well‐established in closed environments such as port terminals, while their operation in open areas remains challenging. In this work, we set out to overcome this limitation by introducing platooning as a transfer mode in heterogeneous vehicle networks.
Nadia Pourmohammad‐Zia, Rudy R. Negenborn, Frederik Schulte   +2 more
wiley   +1 more source

Exact solution algorithms for biobjective mixed integer programming problems

International Transactions in Operational Research, EarlyView.
Abstract We consider criterion space algorithms for biobjective mixed integer programs. The algorithms solve scalarization models in order to explore predetermined regions of the objective space called boxes, defined by two nondominated points. When exploring, the algorithm exploits information on its corner points and chooses the scalarization problem
Deniz Emre, Özlem Karsu, Firdevs Ulus
wiley   +1 more source

A Mixed Integer Programming Approach to the Rechargeable Rover Routing Problem on Mars

Foundations of Computing and Decision Sciences
In this paper, we introduce a novel variant of the Vehicle Routing Problem (VRP), the Rechargeable Rover Routing Problem (RRRP), which addresses the routing of energy-constrained autonomous electric rovers for Martian missions.
Burzyński Wojciech, Kaleta Mariusz
doaj   +1 more source

An effective and efficient matheuristic for the electric vehicle routing problem with capacitated recharging stations

International Transactions in Operational Research, EarlyView.
Abstract In this paper, we address the problem of routing a fleet of electric vehicles (EVs) to serve a set of customers, geographically distributed, within their time windows. We assume that EVs may also be recharged en route, and the amount of energy recharged at a recharging station (RS) is a decision variable itself, that is, partial recharges are ...
Maurizio Bruglieri, Daniele Ferone, Paola Festa, Ornella Pisacane   +3 more
wiley   +1 more source

A MILP for multi-machine injection moulding sequencing in the scope of C2NET Project

International Journal of Production Management and Engineering, 2018
The goal of C2NET European H2020 Funded Project is the creation of cloud-enabled tools for supporting the SMEs supply network optimization of manufacturing and logistic assets based on collaborative demand, production and delivery plans.
Beatriz Andrés, Raquel Sanchis, Raúl Poler, Manuel Díaz-Madroñero, Josefa Mula   +4 more
doaj   +1 more source

Handling software upgradeability problems with MILP solvers

, 2010
Upgradeability problems are a critical issue in modern operating systems. The problem consists in finding the "best" solution according to some criteria, to install, remove or upgrade packages in a given installation.
Chris Tucker, Claude Michel, Ewald Speckenmeyer, Fabio Mancinelli, Inês Lynce, Josep Argelich, Josep Argelich, Michel Rueher, Olivier Roussel, Ralf Treinen, Ralf Treinen, Tobias Achterberg, Ulrich Junker, Vasco M. Manquinho   +13 more
core   +2 more sources

A matheuristic for the traveling salesman problem with positional consistency constraints

International Transactions in Operational Research, EarlyView.
Abstract We propose a matheuristic for the traveling salesman problem with positional consistency constraints, where we seek to generate a set of routes with minimum total cost, in which the nodes visited in more than one route (consistent nodes) must occupy the same relative position in all routes.
Luís Gouveia, Ana Paias, Mafalda Ponte
wiley   +1 more source

An Improved Mixed Integer Linear Programming Approach Based on Symmetry Diminishing for Unit Commitment of Hybrid Power System

Energies, 2019
In this paper, the mixed integer linear programming (MILP) for solving unit commitment (UC) problems in a hybrid power system containing thermal, hydro, and wind power have been studied.
Bo Fu, Chenxi Ouyang, Chaoshun Li, Jinwen Wang, Eid Gul   +4 more
doaj   +1 more source

A unified formulation for home healthcare routing and scheduling problems

International Transactions in Operational Research, EarlyView.
Abstract Home Healthcare is an essential component of healthcare systems, where caregivers visit patients' homes to deliver services. While presenting advantages with respect to institutional care, such as being cost‐effective and alleviating family burdens, it presents challenges in scheduling and routing caregivers efficiently.
Sara Ceschia, Francesca Da Ros, Luca Di Gaspero, Simona Mancini, Vittorio Maniezzo, Roberto Montemanni, Roberto Maria Rosati, Andrea Schaerf   +7 more
wiley   +1 more source