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Mathematics
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Innovations in Optimization and Operations Research
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Innovations in Optimization and Operations Research

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "Engineering Mathematics".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 1861

Special Issue Editors

Prof. Dr. Igor Litvinchev

E-Mail Website
Guest Editor
Graduate Program in Systems Engineering, Nuevo Leon State University (UANL), Av. Universidad s/n, Col. Ciudad Universitaria, San Nicolas de los Garza 66455, Nuevo Leon, Mexico
Interests: modeling, optimization and control of large scale systems; optimization; operations research
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Tetyana Romanova

E-Mail Website
Guest Editor
1. Leeds University Business School, University of Leeds, Leeds, West Yorkshire, UK
2. A. Pidhornyi Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine
Interests: mathematical modeling; optimization; packing; operations research
Prof. Dr. Socorro Rangel

E-Mail Website
Guest Editor
Departamento de Matemática, IBILCE, UNESP—Universidade Estadual Paulista, SP, São José do Rio Preto 15054-000, Brazil
Interests: optimization; mathematical models; mixed integer linear optimization; cutting and packing; multiobjective optimization

Special Issue Information

Dear Colleagues,

The Special Issue "Innovations in Optimization and Operations Research" aims to bring together cutting-edge research and novel advancements in the fields of optimization and operations research. This Special Issue seeks to provide a platform for researchers, practitioners, and experts from diverse disciplines to share their innovative ideas, methodologies, and applications in tackling complex problems related to optimization, decision-making, and resource allocation.

The scope of this Special Issue encompasses, but is not limited to, the following topics: 

  • Metaheuristic algorithms and optimization techniques;
  • Multi-objective optimization and Pareto frontiers;
  • Operations research models and applications;
  • Combinatorial optimization and network optimization;
  • Stochastic optimization and uncertainty modeling;
  • Heuristics and algorithms for complex optimization problems;
  • Optimization in supply chain management and logistics;
  • Robust optimization and sensitivity analysis;
  • Game theory and its applications in optimization;
  • Evolutionary algorithms and swarm intelligence;
  • Optimization in finance, economics, and engineering;
  • Decision support systems and analytics;
  • Data-driven optimization and machine learning in operations research;
  • Applications of optimization in real-world problems;
  • Multidisciplinary applications of optimization and operations research;
  • Large scale optimization.

Prof. Dr. Igor Litvinchev
Prof. Dr. Tetyana Romanova
Prof. Dr. Socorro Rangel
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Mathematics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • optimization
  • operations research
  • metaheuristics
  • multi-objective optimization
  • combinatorial optimization
  • stochastic optimization
  • heuristics
  • supply chain management
  • logistics
  • robust optimization
  • game theory
  • evolutionary algorithms
  • swarm intelligence
  • finance
  • economics
  • engineering
  • decision support systems
  • data-driven optimization
  • machine learning
  • real-world applications
  • multidisciplinary applications

Published Papers (2 papers)

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Research

61 pages, 12951 KiB  
Article
WOA: Wombat Optimization Algorithm for Solving Supply Chain Optimization Problems
by Zoubida Benmamoun, Khaoula Khlie, Mohammad Dehghani and Youness Gherabi
Mathematics 2024, 12(7), 1059; https://doi.org/10.3390/math12071059 - 01 Apr 2024
Viewed by 756
Abstract
Supply Chain (SC) Optimization is a key activity in today’s industry with the goal of increasing operational efficiency, reducing costs, and improving customer satisfaction. Traditional optimization methods often struggle to effectively use resources while handling complex and dynamic Supply chain networks. This paper [...] Read more.
Supply Chain (SC) Optimization is a key activity in today’s industry with the goal of increasing operational efficiency, reducing costs, and improving customer satisfaction. Traditional optimization methods often struggle to effectively use resources while handling complex and dynamic Supply chain networks. This paper introduces a novel biomimetic metaheuristic algorithm called the Wombat Optimization Algorithm (WOA) for supply chain optimization. This algorithm replicates the natural behaviors observed in wombats living in the wild, particularly focusing on their foraging tactics and evasive maneuvers towards predators. The theory of WOA is described and then mathematically modeled in two phases: (i) exploration based on the simulation of wombat movements during foraging and trying to find food and (ii) exploitation based on simulating wombat movements when diving towards nearby tunnels to defend against its predators. The effectiveness of WOA in addressing optimization challenges is assessed by handling the CEC 2017 test suite across various problem dimensions, including 10, 30, 50, and 100. The findings of the optimization indicate that WOA demonstrates a strong ability to effectively manage exploration and exploitation, and maintains a balance between them throughout the search phase to deliver optimal solutions for optimization problems. A total of twelve well-known metaheuristic algorithms are called upon to test their performance against WOA in the optimization process. The outcomes of the simulations reveal that WOA outperforms the other algorithms, achieving superior results across most benchmark functions and securing the top ranking as the most efficient optimizer. Using a Wilcoxon rank sum test statistical analysis, it has been proven that WOA outperforms other algorithms significantly. WOA is put to the test with twenty-two constrained optimization problems from the CEC 2011 test suite and four engineering design problems to showcase its ability to solve real-world optimization problems. The results of the simulations demonstrate that WOA excels in real-world applications by delivering superior solutions and outperforming its competitors. Full article
(This article belongs to the Special Issue Innovations in Optimization and Operations Research)
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24 pages, 3437 KiB  
Article
The Impacts of Payment Schemes and Carbon Emission Policies on Replenishment and Pricing Decisions for Perishable Products in a Supply Chain
by Chun-Tao Chang and Yao-Ting Tseng
Mathematics 2024, 12(7), 1033; https://doi.org/10.3390/math12071033 - 29 Mar 2024
Viewed by 621
Abstract
In the supplier–retailer–consumer system, the retailer’s replenishment and pricing strategies impact the entire transaction process, forming a comprehensive trading market. Suppliers offer advance-cash-credit payments to retailers, while retailers provide customers with cash-credit payment options. In the current health-conscious consumer market, purchasing decisions are [...] Read more.
In the supplier–retailer–consumer system, the retailer’s replenishment and pricing strategies impact the entire transaction process, forming a comprehensive trading market. Suppliers offer advance-cash-credit payments to retailers, while retailers provide customers with cash-credit payment options. In the current health-conscious consumer market, purchasing decisions are influenced not only by commodity prices but also by the freshness of products, particularly perishable goods. Growing awareness of climate change and the advent of carbon emission policies have raised concerns about the environmental costs of business transactions. This study focuses on perishable products whose demand is influenced by both price and freshness. It explores the adoption of various payment methods by suppliers and retailers, as well as the impact of carbon emission cap-and-trade policies or carbon tax policies on management and pricing strategies. Suitable inventory models are established to determine the optimal replenishment and pricing strategies for maximizing the current value of total profit. We illustrate that the current value of total profit demonstrates joint concavity concerning both the selling price and the replenishment time. Finally, we verify the proposed models using numerical examples and present the findings of sensitivity analyses. The findings of this study yield several valuable insights for inventory management of perishable goods. Full article
(This article belongs to the Special Issue Innovations in Optimization and Operations Research)
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