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Showing 21-40 of 6,585 results
  1. Solving the nuclear dismantling project scheduling problem by combining mixed-integer and constraint programming techniques and metaheuristics

    Scheduling of megaprojects is very challenging because of typical characteristics, such as expected long project durations, many activities with...

    Felix Hübner, Patrick Gerhards, ... Rebekka Volk in Journal of Scheduling
    Article Open access 12 April 2021
  2. Integer Linear Programming

    Not too long after more and more applications of linear programming were developed it became apparent that in some of these applications, the...
    H. A. Eiselt, Carl-Louis Sandblom in Operations Research
    Chapter 2022
  3. Mixed integer programming formulations for the generalized traveling salesman problem with time windows

    The generalized traveling salesman problem with time windows (GTSPTW) is defined on a directed graph where the vertex set is partitioned into...

    Yuan Yuan, Diego Cattaruzza, ... Frédéric Semet in 4OR
    Article 31 October 2020
  4. Mathematical modelling and a discrete cuckoo search particle swarm optimization algorithm for mixed model sequencing problem with interval task times

    This paper addresses a sequencing problem with uncertain task times in mixed model assembly lines. In this problem, task times are not known exactly...

    Jiahua Zhang, Xuemei Liu, Beikun Zhang in Journal of Intelligent Manufacturing
    Article 30 January 2024
  5. A distributionally robust chance-constrained model for humanitarian relief network design

    We propose a novel two-stage distributionally robust joint chance-constrained (DRJCC) model to design a resilient humanitarian relief network with...

    Zhenlong Jiang, Ran Ji, Zhijie Sasha Dong in OR Spectrum
    Article 22 June 2023
  6. Storage location assignment of steel coils in a manufacturing company: an integer linear programming model and a greedy randomized adaptive search procedure

    Warehouse operations have a significant role to survive in today’s competitive world. Hence, companies introduce various solutions to improve...

    Emrah B. Edis, Ozlem Uzun Araz, ... Rahime Sancar Edis in TOP
    Article 04 March 2022
  7. Decomposition methods for multi-horizon stochastic programming

    Multi-horizon stochastic programming includes short-term and long-term uncertainty in investment planning problems more efficiently than traditional...

    Hongyu Zhang, Ignacio E. Grossmann, Asgeir Tomasgard in Computational Management Science
    Article Open access 10 May 2024
  8. Inductive linearization for binary quadratic programs with linear constraints: a computational study

    The computational utility of inductive linearizations for binary quadratic programs when combined with a mixed-integer programming solver is...

    Sven Mallach in 4OR
    Article Open access 23 March 2023
  9. Modeling Structures Using Mixed Integer Programming

    In this chapter we shall look at ways in which problems may be formulated using a series of devices mainly involving integer variables for counting...
    Chapter 2021
  10. A ground crew shift rostering model for Santiago International Airport

    A mixed integer linear programming model is presented for personnel planning of ground handling crews at Santiago International Airport in Chile. The...

    Juan P. Cavada, Cristián E. Cortés, ... Pablo A. Rey in Operational Research
    Article 28 February 2023
  11. Drainage area maximization in unconventional hydrocarbon fields with integer linear programming techniques

    The drainage area maximization problem for an unconventional hydrocarbon field is addressed with the objective of designing a development plan that...

    Fernando Aliaga, Diego Delle Donne, ... Javier Marenco in Annals of Operations Research
    Article 15 March 2022
  12. A mixed-integer nonlinear optimization model for integrated flight scheduling, fleet assignment, and ticket pricing in competitive market

    In the airline industry, ticket pricing is one of the most complex problems that researchers and practitioners are extensively involved on it. In...

    Masood Kiarashrad, Seyed Hamid Reza Pasandideh, Mohammad Mohammadi in Journal of Revenue and Pricing Management
    Article 08 January 2021
  13. An exact method for influence maximization based on deterministic linear threshold model

    Influence maximization (IM) is a challenging combinatorial optimization problem on (social) networks given a diffusion model and limited choice for...

    Eszter Julianna Csókás, Tamás Vinkó in Central European Journal of Operations Research
    Article 18 June 2022
  14. Teaching OR: automatic evaluation for linear programming modelling

    Learning how to model a problem described in natural language as a linear program requires students to practice using various and numerous exercises....

    Hadrien Cambazard, Nicolas Catusse, ... Pierre Lemaire in 4OR
    Article 13 July 2021
  15. A numerical method for interval multi-objective mixed-integer optimal control problems based on quantum heuristic algorithm

    This article is concerned with the numerical solution for a class of interval multi-objective mixed-integer optimal control problems (IMOMIOCPs). The...

    Zhe Liu, Shurong Li in Annals of Operations Research
    Article 10 March 2021
  16. An exploratory computational analysis of dual degeneracy in mixed-integer programming

    Dual degeneracy, i.e., the presence of multiple optimal bases to a linear programming (LP) problem, heavily affects the solution process of mixed...

    Gerald Gamrath, Timo Berthold, Domenico Salvagnin in EURO Journal on Computational Optimization
    Article Open access 01 August 2020
  17. Types of Mixed Integer Linear Programming Problems

    In this chapter a number of standard ILP problems will be formulated. As in Chap. 4 , we shall look at some...
    Chapter 2021
  18. A bi-level multi-follower optimization model for R&D project portfolio: an application to a pharmaceutical holding company

    The need for a study of project portfolio optimization in pharmaceutical R&D has become all the more urgent with the outbreak of COVID-19. This study...

    Faraz Salehi, S. Mohammad J. Mirzapour Al-E-Hashem, ... S. Hassan Ghodsypour in Annals of Operations Research
    Article 08 November 2022
  19. A proactive transshipment model for prototype parts logistics in the automotive industry

    In the logistics of prototype parts in the automotive industry, unique parts are stored in warehouses and provided to assembly service providers to...

    Christian Weckenborg, Bastian Vorwerk, Thomas S. Spengler in Journal of Business Economics
    Article Open access 07 May 2024
  20. Integrated DANP and binary goal programming model in generating joint-decision making for packaging postponement and supplier selection

    This article explores the application of goal programming (GP) for improving tactical decision-making in supply chains. GP demonstrates flexibility...

    Ivan Gunawan, Dian Trihastuti, ... Kim Hua Tan in Annals of Operations Research
    Article 17 July 2023
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