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Locating Service Centers to Maximize the Competitive Share in a Closed Supply Chain | ||
| Advances in Industrial Engineering | ||
| مقاله 11، دوره 52، شماره 2، مهر 2018، صفحه 263-276 اصل مقاله (1.08 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jieng.2018.244689.1470 | ||
| نویسندگان | ||
| Ali Mostafaeipour* ؛ Hengameh Hadian؛ Amir Mohammad Golmohammadi | ||
| Department of Industrial Engineering, Yazd University, Yazd, Iran | ||
| چکیده | ||
| Competitive location deals with the problem of locating facilities to provide services to the customers, where other competing facilities offer the same services. Many competitive location models are presented in the literature. However, the literature on competitive location considering reverse logistic in closed-loop supply chain is rather scarce. Also, there are two main approaches in the related literature: increasing profit, and increasing market share of the service centers. Most of the studies in the literature consider one of these issues as the objective function. This study shows that these objectives may have conflict with each other. Therefore, addressing these issues simultaneously is important for a successful design of supply chain. This paper addresses a novel biobjective competitive facility location problem in a closed-loop supply chain, so that increasing profit and market share are considered simultaneously. On the other hand, in the real world, the customer may choose facilities that are not necessarily close to them, because of the greater attractiveness of other facilities. Hence, in this study, a new relationship is introduced to establish the attractiveness of each potential center for customers based on the distance and quality of service centers. In order to solve the proposed model and tackle the computational complexity of the proposed model, two approaches are employed: LP-metric and NSGAII. Furthermore, multiple numerical instances are established and solved by employing the exact approach of LP-metric through GAMS. Results are assessed in order to validate the accuracy of the proposed model. The best value of “P” in LP-metric approach is obtained via analyzing the results. Furthermore, the performance of the NSGAII is analyzed by comparing to the exact solution of LP-metric through GAMS. Results indicate that the proposed NSGAII is more appropriate than LP-metric, and thus, solving the large size problems through GAMS in a logical time is impossible. | ||
| کلیدواژه‌ها | ||
| Closed-Loop Supply Chain؛ Competitive Location؛ NSGA II؛ LP-Metric؛ Reverse Logistic | ||
| عنوان مقاله [English] | ||
| مکان‌یابی مراکز خدماتی با هدف بیشینه‌سازی سهم رقابتی در یک زنجیرۀ تأمین بسته | ||
| نویسندگان [English] | ||
| علی مصطفایی پور؛ هنگامه هادیان؛ امیرمحمد گلم حمدی | ||
| دانشیار گروه مهندسی صنایع، دانشگاه یزد | ||
| چکیده [English] | ||
| این مقاله به مدل‌سازی و حل مسئلة مکان‌یابی مراکز خدماتی و تعیین مراکز جمع‌آوری کالاها در زنجیرة تأمین حلقة بسته پرداخته است. مقالات موجود در ادبیات موضوع، معمولاً یکی از رویکردهای افزایش سود یا افزایش سهم بازار را مدنظر قرار داده‌اند، اما با توجه به پژوهش حاضر، این دو هدف ممکن است در تعارض با یکدیگر باشند. در این مقاله، هر دو رویکرد افزایش سهم بازار و افزایش سودآوری به‌صورت هم‌زمان اعمال شده‌اند. رابطه‌ای جدید نیز برای تعیین میزان مطلوبیت هر مرکز بالقوه برای مشتریان برمبنای تابعی از فاصله و کیفیت خدمت‌رسانی مراکز معرفی شده است. پس از اعتبارسنجی مدل ارائه‌شده، از روش‌های دقیق LP-METRIC و فراابتکاری NSGA II برای حل استفاده شده است. درنهایت نتایج بررسی مسائل نمونة متعدد در ابعاد مختلف، دلالت بر دقت و سرعت عمل بسیار NSGA II دارد. | ||
| کلیدواژه‌ها [English] | ||
| الگوریتم فراابتکاری NSGA II, روش LP-METRIC, زنجیرة تأمین حلقة بسته, سهم بازار, مکان‌یابی رقابتی | ||
| مراجع | ||
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