Showing 301 - 320 results of 333 for search 'constraints integer optimization', query time: 0.07s Refine Results
  1. 301

    A Long-Term Shared Autonomous Vehicle System Design Problem considering Relocation and Pricing by Jingjing Tian, Hongfei Jia, Guanfeng Wang, Yu Lin, Ruiyi Wu, Ao Lv

    Published 2022-01-01
    “…The minimum customer service rate is regarded as a constraint to ensure the system’s reliability. Moreover, a mixed-integer nonlinear programming (MINLP) model is formulated to jointly determine the number of stations and parking spaces, fleet size, relocation, and pricing strategies to maximize the total profit. …”
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    Article
  2. 302

    A Time-Dependent Fuzzy Programming Approach for the Green Multimodal Routing Problem with Rail Service Capacity Uncertainty and Road Traffic Congestion by Yan Sun, Martin Hrušovský, Chen Zhang, Maoxiang Lang

    Published 2018-01-01
    “…In response to the demand for an environmentally friendly transportation, we extend the problem into a green version by using both emission charging method and bi-objective optimization to optimize the CO2 emissions in the routing. …”
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    Article
  3. 303

    Joint Lagrangian Relaxation and Dynamic Programming Approach for a Multi-Period Multi-Product Location-Inventory Problem by Claudio Araya-Sassi, German Paredes-Belmar, Gabriel Gutierrez-Jarpa, Ricardo Gatica Escobar

    Published 2025-01-01
    “…Computational experiments prove that the presented approach gives solutions close to optimal and low gaps in a low computational time. …”
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    Article
  4. 304

    Genetic Algorithm and Mathematical Modelling for Integrated Schedule Design and Fleet Assignment at a Mega-Hub by Melis Tan Tacoglu, Mustafa Arslan Ornek, Yigit Kazancoglu

    Published 2025-06-01
    “…This study addresses the challenge of introducing a new route from a mega-hub to a new destination, while maintaining the existing flight network and leveraging arrivals from spoke airports to ensure connectivity. First, a mixed-integer nonlinear mathematical model was formulated to produce a global optimal solution at a lower time granularity, but it became computationally intractable at higher granularities due to the exponential growth in constraints and variables. …”
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  5. 305

    APPROACH TO OPTIMISING AND MANAGING WAREHOUSE STOCKS IN A CAR SERVICE by Ivan Beloev, Dimitar Grozev

    Published 2025-05-01
    “…The objective of the proposed model is to minimise the total inventory costs, including purchasing, holding, and potential shortage costs, by applying integer linear programming techniques. The problem is formulated with decision variables representing quantities to be ordered and stocked, and includes a set of linear constraints reflecting all operational requirements. …”
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    Article
  6. 306

    Exploring the synergy between sustainability and resilience in supply chains under stochastic demand conditions and network disruptions by Saheeb Ahmed Kayani, Salman Sagheer Warsi

    Published 2025-06-01
    “…Combining fuzzy multi-criteria decision-making with a fuzzy multi-objective mixed-integer nonlinear programming model, the framework optimizes triple bottom line sustainability alongside resilience. …”
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    Article
  7. 307

    Location Problem - Routing a vehicle with a specified fuel capacity based on a tough time window and customer satisfaction by Mohammad Moshrefi

    Published 2023-09-01
    “…In this research, first, a mixed integer linear programming model is presented and then metaheuristic method based on Non-dominated Sorting Genetic Algorithm is proposed to find the optimal solution. …”
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    Article
  8. 308

    An Automated Load Restoration Approach for Improving Load Serving Capabilities in Smart Urban Networks by Ali Esmaeel Nezhad, Mohammad Sadegh Javadi, Farideh Ghanavati, Toktam Tavakkoli Sabour

    Published 2025-07-01
    “…The proposed model is developed based on a mixed-integer quadratically constrained program (MIQCP), including an optimal power flow (OPF) problem to minimize the power losses in normal operation and the load shedding in islanded operation, while keeping voltage and capacity constraints. …”
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  9. 309

    Integrated Train Rescheduling and Rerouting during Multidisturbances under a Quasi-Moving Block System by Peijuan Xu, Dawei Zhang, Jingwei Guo, Dan Liu, Hui Peng

    Published 2021-01-01
    “…In order to adjust the train speed and find the best routes for trains, the set of alternative arcs and alternative arrival/departure paths are considered in the constraints, respectively. Due to this complex NP-hard problem, a two-step algorithm with three scheduling rules based on a commercial optimizer is applied to solve the problem efficiently in a real-word case, and the efficiency, validity, and feasibility of this method are demonstrated by a series of experimental tests. …”
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  10. 310

    Partial Disassembly and Consideration of Part Relationships in Multiproduct, Multiperiod Capacitated Disassembly Scheduling With Parts Commonality by Sajed Zare, Mohammad Bagher Fakhrzad, Hassan Khademi Zare, Hasan Hosseini-Nasab

    Published 2024-01-01
    “…This paper proposes a new mixed-integer linear programming (MILP) model to consider a multiproduct, multiperiod capacitated disassembly scheduling model with parts commonality and partial disassembly. …”
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    Article
  11. 311

    Truck and Unmanned Vehicle Routing Problem with Time Windows: A Satellite Synchronization Perspective by Hongqi Li, Jiamin Zhao, Zhuopeng Zhan

    Published 2022-01-01
    “…Intersatellite synchronization, which focuses on synchronization operations at various satellites, allows UVs to not return to the dispatched locations, if necessary. In the mixed-integer linear programming model of the TUVRP-TW, both binary variables for identifying the appointed satellites and continuous variables for time continuity constraints are introduced to ensure the interaction between truck routes and UV routes. …”
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  12. 312

    The electric boat charging problem by Daniel Villa, Alejandro Montoya, Juan M. Ciro

    “…This model allows to optimally solve industrial scale instances. Moreover, using a sensitivity analysis, we unveil that both the battery capacity and the time limit constraint of the EB route are critical parameters.…”
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  13. 313

    Modelling maintenance scheduling strategies for highway networks. by Bao Tong, Jianwei Wang, Xue Wang, Feihao Zhou, Xinhua Mao, Yaxin Duan

    Published 2022-01-01
    “…We formulate MMS as a mixed integer linear programming model subject to the constraints of the quantity of manpower and the worst-first maintenance sequence. …”
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    Article
  14. 314

    Waste Collection Optimisation: A Path to a Green and Sustainable City of Makkah by Haneen Algethami, Ghada Talat Alhothali

    Published 2023-08-01
    “…Thus, there is a need to find optimal and fast solutions to this problem. Solving this problem demands tackling numerous routing constraints while aiming to minimise the operational cost. …”
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    Article
  15. 315

    Multi-objective planning and sustainability assessment for integrated energy systems combining ORC and multi-energy storage: 4E (economic, environmental, exergy and emergy) analysi... by Juntao Han, Kai Han, Yongzhen Wang, Yibo Han, Zhaonian Ye, Jiayu Lin

    Published 2025-01-01
    “…Firstly, the mixed-integer nonlinear optimization models for three scenarios of gas turbine (GT) without ORC, GT with ORC (GT-ORC) and solid oxide fuel cell (SOFC) with ORC (SOFC-ORC) are established, and the Pareto curve is obtained by using the augmented ε constraint. …”
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  16. 316

    A multi-objective robust possibilistic programming approach to designing sustainable and reliable closed-loop supply chain network (case study: aluminum industry) by Sajad Amirian, Maghsoud Amiri, Mohammad Taghi Taghavifard

    Published 2024-08-01
    “…The mathematical model developed in this research is of mixed integer linear programming type, which is implemented in GAMS software to solve it and find Pareto optimal solutions.Findings: The accuracy of the overall performance of the proposed model has been evaluated with four examples (based on the coefficients of the objective functions) from a case study in the aluminium industry. …”
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    Article
  17. 317

    An Intelligent Contract-Driven Bidding Approach for Electric Vehicle Aggregators to Facilitate Blockchain-Powered Energy Trading by Imran Hussain, Hafiz Ashiq Hussain, Nasim Ullah, Stanislav Misak

    Published 2025-01-01
    “…This paper presents a decentralized blockchain-powered smart contract-based peer-to-peer model to enable optimal energy trading coordination of electric vehicles with aggregators in the smart community, where revenue from feed-in tariffs, ancillary services, and peer-to-peer sales are optimized, and the cost is minimized using a mixed-integer linear programming formulation. …”
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  18. 318

    Capacity requirements and demand management strategies in meal delivery by Ramon Auad, Alan Erera, Martin Savelsbergh

    Published 2024-01-01
    “…To simplify analysis, we focus on problem geometries that enable the use of stylized mixed integer programs to optimally deploy a fleet of couriers serving large numbers of orders. …”
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    Article
  19. 319

    A Novel MILP Model for the Production, Lot Sizing, and Scheduling of Automotive Plastic Components on Parallel Flexible Injection Machines with Setup Common Operators by Beatriz Andres, Eduardo Guzman, Raul Poler

    Published 2021-01-01
    “…The goodness of the model is evaluated with the computational time and the deviation of the obtained results as regards to the optimal solution.…”
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  20. 320

    A robust resilient-oriented design for the cyber-physical distribution system against sequential typhoons by Shimei Li, Zhanghao Huang, Jinman Luo, Jianyong Zhan, Liyuan Liu, Die Cong, Xiaoxia Li, Yunan Lin, Ling Yu, Yu Nie, Wenlong Chen, Keng-Weng Lao

    Published 2025-07-01
    “…Thereafter, the proposed robust optimization model is recast to a mixed-integer linear programming problem, which can be solved by a nested column-and-constraint generation algorithm. …”
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    Article