امدادرسانی زمان‌مند بر اساس جستجوی فراکتال

نوع مقاله : علمی - پژوهشی

نویسندگان

1 ، دانشکده مهندسی نقشه‌برداری و اطلاعات مکانی، پردیس دانشکده‌های فنی، دانشگاه تهران، تهران، ایران

2 دانشکده مهندسی نقشه‌برداری و اطلاعات مکانی، پردیس دانشکده‌های فنی، دانشگاه تهران، تهران، ایران

چکیده

پس از وقوع بحران، آمادگی برایامدادرسانی کارآمدنقشی اساسی در کاهش هزینه‌ها و تلفات انسانی احتمالی حادثه خواهد داشت. امدادرسانی به‌عنوان یکی از مهم‌ترین مراحل توسعه سامانه‌های مدیریت بحران شناخته می‌شود. به منظور توسعه رویکردی کارا برای امدادرسانی زمان‌مند، در این پژوهش به حل مسئله‌ای بر اساس مسئله مسیریابی موجودی با وضعیت چند دوره‌ای و چند کالایی پرداخته شده است. جهت حل مدل، از یک الگوریتم بهبودیافته بر مبنای الگوریتم جستجوی فراکتال بهبودیافته بهره‌گیری شد. جستجوی فراکتال یک الگوریتم بهینه سازی قدرتمند و جمعیت‌مبنا است که بر مبنای تئوری پتانسیل و پدیده رشد فراکتال­ها و سه قانون فیزیکی اولیه به جستجوی فضای مسئله می­پردازد. با در نظر گرفتن مسائل نمونه، کارآیی الگوریتم پیشنهادی در مقایسه با دیگر الگوریتم‌ها از منظر زمان اجرا، سرعت همگرایی، نرخ موفقیت، بهترین و میانگین، انحراف از معیار و برتری آماری نتایج با استفاده از آزمون ویلکاکسون مقایسه شده است. ارزیابی نتایج الگوریتم‌ها نشان­دهنده کارآیی بالای الگوریتم پیشنهادی از منظر زمان اجرا، سرعت همگرایی و نرخ موفقیت به‌منظور مسیریابی زمان­مند در سناریوهای امدادی است. نتایج نشان می­دهد که با افزایش ابعاد مسئله، کارآیی بالاتری در رویکرد پیشنهادی مشاهده می­شود. چارچوب ارائه­شده در این تحقیق می­تواند پاسخگوی نیازهای جاری سناریوهای امدادرسانی و همچنین مسائل مربوط به مسیریابی موجودی باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Temporal Relief using Fractal Search

نویسندگان [English]

  • Ali Asghar Heidari 1
  • Rahim Ali Abaspour 2
1 College of Engineering University of Tehran
2 Department of Engineering, University of Tehran
چکیده [English]

After disasters, preparation for performing an effective rescue mission can significantly reduce the costs and possible injuries of the event. Relief is regarded as one of the crucial steps in developing of disaster management systems. This research has tackled a multi-product multi-period inventory routing problem in order to develop an efficient strategy for temporal relief tasks. To solve the model, an improved fractal search algorithm was employed. Fractal search is a population-based and powerful optimization algorithm that explores the problem space based on the potential theory, growth of the random fractal and three physical laws. Based on instance problems, the efficiency of the proposed algorithm is compared to other methods in terms of running time, convergence rate, success rate, best and average standard deviation of the results, as well as the statistical superiority by test of Wilcoxon. Assessment of the results show that the proposed algorithm has a better performance based on running time, convergence speed, and success rate in temporal routing of rescue vehicles. The results show that by increasing of problem dimensions, better efficiency in the proposed strategy is detected. The proposed framework in this study can be used in relief scenarios and related inventory routing problems.

کلیدواژه‌ها [English]

  • Fractal Search Algorithm
  • routing
  • relief
  • optimization
  • fractal
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