Erfan Mohammadi
Iran University of Science and Technology
[ 1 ] - A hybrid intuitionistic fuzzy multi-criteria group decision making approach for supplier selection
Due to the increasing competition of globalization, selection of the most appropriate supplier is one of the key factors for asupply chain management’s success. Due to conflicting evaluations and insufficient information about the criteria, Intuitionisticfuzzy sets (IFSs) considered as animpressive tool and utilized to specify the relative importance of the criteria. The aim of this paper is to...
[ 2 ] - بهینهسازی سبد سهام با استفاده از الگوریتم جستوجوی ارگانیسمهای هم‌زیست
بهینهسازی سبد سهام یکی از مهمترین موضوعاتِ تصمیمگیری برای شرکتهای فعال در بازار سرمایه است. هنگامی که وضعیت و محدودیتهای دنیای واقعی نظیر محدودیت سرمایهگذاری در هریک از سهامها و نیز محدودیت تعداد سهامهای موجود در سبد سهام در نظر گرفته میشوند، مسئلۀ بهینهسازی سبد سهام به راحتی حل نمیشود، از این رو استفاده از شیوههای فراابتکاری مد نظر قرار میگیرد. هدف اصلی از پژوهش حاضر، حل مسئلۀ بهین...
[ 3 ] - Supplier selection with multi-criteria group decision making based on interval-valued intuitionistic fuzzy sets (case study on a project-based company)
Supplier selection can be considered as a complicated multi criteria decision-making problem.In this paper the problem of supplier selection is studied in the presence of conflicting evaluations and insufficient information about the criteria and different attitudes of decision makers towards the risk. Most of fuzzy approaches used in multi-criteria group decision making (MCGDM) are non-intuiti...
[ 4 ] - Reliability Optimization for Complicated Systems with a Choice of Redundancy Strategies (TECHNICAL NOTE)
Redundancy allocation is one of the common techniques to increase the reliability of the bridge systems. Many studies on the general redundancy allocation problems assume that the redundancy strategy for each subsystem is predetermined and fixed. In general, active redundancy has received more attention in the past. However, in real world, a particular system design contains both active and col...
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