Esmaile Khorram

[ 1 ] - MULTI-OBJECTIVE OPTIMIZATION WITH PREEMPTIVE PRIORITY SUBJECT TO FUZZY RELATION EQUATION CONSTRAINTS

This paper studies a new multi-objective fuzzy optimization prob- lem. The objective function of this study has dierent levels. Therefore, a suitable optimized solution for this problem would be an optimized solution with preemptive priority. Since, the feasible domain is non-convex; the tra- ditional methods cannot be applied. We study this problem and determine some special structures related...

[ 2 ] - Optimization of linear objective function subject to Fuzzy relation inequalities constraints with max-product composition

In this paper, we study the finitely many constraints of the fuzzyrelation inequality problem and optimize the linear objectivefunction on the region defined by the fuzzy max-product operator.Simplification operations have been given to accelerate theresolution of the problem by removing the components having noeffect on the solution process. Also, an algorithm and somenumerical and applied exa...

[ 3 ] - یک روش عددی مبتنی بر روش پاسکولتی-سرافینی برای تعیین مرز بهینه پارتو در مسایل بهینه سازی چندهدفه

[ 4 ] - ارایه‌ی یک هدف ثانویه برای ارزیابی کارایی متقاطع در تحلیل پوششی داده‏ ها با خروجی نامطلوب

[ 5 ] - Two-stage estimation using copula function

‎Maximum likelihood estimation of multivariate distributions needs solving a optimization problem with large dimentions (to the number of unknown parameters) but two‎- ‎stage estimation divides this problem to several simple optimizations‎. ‎It saves significant amount of computational time‎. ‎Two methods are investigated for estimation consistency check‎. ‎We revisit Sankaran and Nair's bivari...

[ 6 ] - A Chance Constrained Integer Programming Model for Open Pit Long-Term Production Planning

The mine production planning defines a sequence of block extraction to obtain the highest NPV under a number of constraints. Mathematical programming has become a widespread approach to optimize production planning, for open pit mines since the 1960s. However, the previous and existing models are found to be limited in their ability to explicitly incorporate the ore grade uncertainty into the p...

[ 7 ] - الگوریتمی جدید برای پیدا کردن نقاط بهینه پارتو در مسائل بهینه‌سازی چندهدفه

در این مقاله یک روش اسکالرسازی اصلاح‌شده برای بدست آوردن مجموعه نقاط پارتو در مسائل بهینه‌سازی چندهدفه مورد بررسی قرار می‌گیرد. روش پیشنهادی، تعمیمی از روش‌های تقاطع مرزی نرمال محدودشده و روش پاسکلوتی-سرافینی می‌باشد. در ابتدا، مساله بهینه‌سازی مربوط به روش اصلاح‌شده را بررسی می‌کنیم و سپس الگوریتمی برای بدست آوردن مجموعه نقاط بهینه پارتو ارایه می‌دهیم. در ادامه، روابط بین جواب‌های بهینه مساله ...

[ 8 ] - Balancing public bicycle sharing system by defining response rates for destinations

Public Bicycle Sharing System (PBSS) is used as a way to reduce traffic and pollution in cities. Its performance is related to availability of bicycles for picking up and free docks to return them. Existence of different demand types leads to the emergence of imbalanced stations. Here, we try to balance inventory of stations via defining maximal response rates for each type of rental request. I...

[ 9 ] - A Public Bicycle Sharing System Considering Renting and Middle Stations

Recently, public bicycle sharing system (PBSS) has become one of the most favorite urban transportation systems that can help governments to decrease environmental problems such as pollution and traffic. This paper studies a sharing system that includes two types of stations. The first category contains stations that users can rent or return back bicycles and each bicycle can be rented by any n...