محمد جعفر تارخ

[ 1 ] - طراحی شبکه زنجیره تامین یکپارچه مستقیم و معکوس سازگار با محیط زیست

هدف از طراحی شبکة زنجیرة تأمین حلقه‌بسته ترکیب‌کردن ملاحظلات محیطی با طراحی شبکة زنجیرة تأمین سنتی از طریق درنظرگرفتن بازیافت، دمونتاژ، و فعالیت‏های استفادة مجدد است. در یک شبکة زنجیرة تأمین حلقه‌بسته استفاده از مواد اولیة دوستدار محیط زیست و افزایش استفادة دوباره از محصولات به کمک طراحی یک شبکة بازیافت، دمونتاژ، و نوسازی محصولات مناسب می‏تواند سبب افزایش ملاحظات محیطی در طراحی شبکه شود. در این...

[ 2 ] - حداقل‌کردن هزینه‌های توزیع زنجیره تأمین چندسطحی با رویکرد الگوریتم ژنتیک و روش هیبریدی

در این مقاله، شبکه توزیع برای زنجیره تأمین چند‌سطحی مورد مطالعه قرار گرفته است. محصولات در کارخانجات تولید و از طریق انبارها و مراکز توزیع بر اساس تقاضاهای معین به مشتریان ارسال می‌شوند. در همین راستا مدلی طراحی شده است که هزینه‌های شبکه توزیع را در زنجیره تأمین چندسطحی حداقل کند. یک برنامه‌ریزی عدد صحیح مختلط برای مدل فرموله شده است. با توجه به Np-Hard مدل پایه، مدل پیشنهادی ارائه‌شده این مقال...

[ 3 ] - مدل‌سازی و ‌حل مسئله مسیریابی وسیله نقلیه با تابع هزینه پله‌ای وابسته به مقدار بارگیری (مطالعه موردی: شرکت فرگاز مازندران)

موضوع مسیریابی وسیله نقلیه، یکی از موضوعات مهم در برنامه‌ریزی حمل‌ونقل است. در اکثر پژوهش‌های پیشین، هدف این موضوعات حداقل‌کردن کل مسافت طی‌شده توسط وسایل نقلیه بوده‌ است. ولی در صنعت، موارد متعددی یافت می‌شود که مقدار محصول بارگیری‌شده جزو مؤلفه‌های تابع هزینه است. در این مقاله ابتدا یک موضوع مسیریابی وسیله نقلیه ناهمگن، مدل‌سازی شده است که در آن هزینه پرداختی برای هر وسیله نقلیه، برابر حاصل‌ض...

[ 4 ] - A Knowledge Management Approach to Discovering Influential Users in Social Media

A key step for success of marketer is to discover influential users who diffuse information and their followers have interest to this information and increase to diffuse information on social media. They can reduce the cost of advertising, increase sales and maximize diffusion of information.  A key problem is how to precisely identify the most influential users on social networks. In this pape...

[ 5 ] - A Novel Method for Selecting the Supplier Based on Association Rule Mining

One of important problems in supply chains management is supplier selection. In a company, there are massive data from various departments so that extracting knowledge from the company’s data is too complicated. Many researchers have solved this problem by some methods like fuzzy set theory, goal programming, multi objective programming, the liner programming, mixed integer programming, analyti...

[ 6 ] - Sales Budget Forecasting and Revision by Adaptive Network Fuzzy Base Inference System and Optimization Methods

The sales proceeds are the most important factors for keeping alive profitable companies. So sales and budget sales are considered as important parameters influencing all other decision variables in an organization. Therefore, poor forecasting can lead to great loses in organization caused by inaccurate and non-comprehensive production and human resource planning. In this research a coherent so...

[ 7 ] - A New Model to Speculate CLV Based on Markov Chain Model

The present study attempts to establish a new framework to speculate customer lifetime value by a stochastic approach. In this research the customer lifetime value is considered as combination of customer’s present and future value. At first step of our desired model, it is essential to define customer groups based on their behavior similarities, and in second step a mechanism to count current ...

[ 8 ] - Integrating AHP and data mining for effective retailer segmentation based on retailer lifetime value

Data mining techniques have been used widely in the area of customer relationship management (CRM). In this study, we have applied data mining techniques to address a problem in business-to-business (B2B) setting. In a manufacturer-retailer-consumer chain, a manufacturer should improve its relationship with retailers to continue its business. Segmentation is a useful tool for identifying groups...

[ 9 ] - Hybrid Meta-heuristic Algorithm for Task Assignment Problem

Task assignment problem (TAP) involves assigning a number of tasks to a number of processors in distributed computing systems and its objective is to minimize the sum of the total execution and communication costs, subject to all of the resource constraints. TAP is a combinatorial optimization problem and NP-complete. This paper proposes a hybrid meta-heuristic algorithm for solving TAP in a ...

[ 10 ] - Using Electromagnetism Algorithm for Determining the Number of kanbans in a Multi-stage Supply Chain System

This paper studies the multi-stage supply chain system (MSSCM) controlled by the kanban mechanism. In the kanban system, decision making is based on the number of kanbans as well as batch sizes. A kanban mechanism is employed to assist in linking different production processes in a supply chain system in order to implement the scope of just-in-time (JIT) philosophy. For a MSSCM, a mixed-integer...

[ 11 ] - Combining data mining and group decision making in retailer segmentation based on LRFMP variables

Data mining is a powerful tool for firms to extract knowledge from their customers’ transaction data. One of the useful applications of data mining is segmentation. Segmentation is an effective tool for managers to make right marketing strategies for right customer segments. In this study we have segmented retailers of a hygienic manufacture. Nowadays all manufactures do understand that for st...

[ 12 ] - Customer Lifetime Value Models: A literature Survey

Abstract Customer Lifetime Value (CLV) is known as an important concept in marketing and management of organizations to increase the captured profitability. Total value that a customer produces during his/her lifetime is named customer lifetime value. The generated value can be calculated through different methods. Each method considers different parameters. Due to the industry, firm, business...

[ 13 ] - Integrated JIT Lot-Splitting Model with Setup Time Reduction for Different Delivery Policy using PSO Algorithm

This article develops an integrated JIT lot-splitting model for a single supplier and a single buyer. In this model we consider reduction of setup time, and the optimal lot size are obtained due to reduced setup time in the context of joint optimization for both buyer and supplier, under deterministic condition with a single product. Two cases are discussed: Single Delivery (SD) case, and Multi...

[ 14 ] - Web Service Providers\' Game on Price and Service Level

  Response time is one of the critical web service quality dimensions. It refers to how long it takes that a web service responds to request of a user. In order to manage the response time, pricing schemes can work as an efficient access control mechanism. In this paper, we study competition between two providers offering functionally same web services where there is a monopoly service provider...

[ 15 ] - Changes in a Service Oriented Enterprise: A Game Theory Approach

Service Oriented Enterprises (SOEs) are subject to constant change and variation. In this paper, the changes are considered from an economic perspective based on service culture notion. Once a change is implemented, the costs of some member services may increase, whereas the costs of some other services may reduce. We construct a game theoretic model trying to capture the possible conflicting i...

[ 16 ] - مدیریت ریسک اعتباری تحت عدم قطعیت با استفاده از یک روش ویکور فازی

[ 17 ] - بررسی نقش ابزارهای فناوری اطلاعات در پیاده سازی اثربخش سیستم های مدیریت دانش با استفاده از تکنیک تحلیل شکاف (مطالعه موردی: شرکت ایران خودرو)

Due to the rapid development of knowledge and information technology (IT), business environments have become much more complicated. In order to cope with ensuing complications, enterprises ought to incessantly innovate otherwise, it will be very difficult for them to survive in the marketplace. Hence, IT can help a company to gain a competitive advantage. In addition, many studies have argued t...

[ 18 ] - نقشه راه پیاده‌سازی برنامه‌ریزی منابع سازمان(ERP) در مراکز خدمات درمانی

During recent years, tendencies towards Enterprise Resource Planning (ERP) systems are growing both in service and manufacturing organizations .Service organizations have invested considerable resources in the implementation of ERP systems for integrating information, improving services quality and more customers satisfaction ,even using solutions initially targeted for manufacturing companies....

[ 19 ] - تدوین راهکار اجرایی سیستم‌های مدیریت دانش (مطالعه موردی شرکت مشاور مدیریت و خدمات ماشینی تامین)

This article describes a knowledge management (KM) success model that is derived from observations generated through an empirical study of KM in an Iranian consultant company and KM success factors in the literature which is shown that company has a weak situation in each factor. So company needs a measurement model in order to assess knowledge management implementation processes in each step t...

[ 20 ] - استفاده از تکنیک دیمتل فازی برای رتبه بندی راهبردهای مدیریت دانش

Knowledge is one of the most important resources of every company that must be effectively managed like any other resources. In addition to inter-organizational reasons, most of companies consider knowledge management and its effective usage as a leverage to be able to compete in their field. Although a lot of research has been conducted in this area, company's manager and decision makers fail ...

[ 21 ] - استراتژی پیاده سازی موفق تکنولوژی های هوشمند سلامت مبتنی برفناوری اطلاعات و ارتباطات: مطالعه موردی سیستم پایش هوشمند سلامت

طبق بررسی ادبیات مربوط به توسعه فناوری اطلاعات، تا سال 2040، تعداد 65 فناوری اطلاعات سلامت  (HIT[1]) وجود خواهد داشت. سوابق پیشین نشان می دهد که پیاده سازی این فناوری ها با ریسک و محدودیت هایی از نقطه نظر زمان، هزینه و تخصیص منابع مواجه است که منجر به انحراف از اهداف می شود. در این مقاله، یک استراتژی برای کمک به سازمان ها برای اجرای فناوری اطلاعات آینده (IT) با استفاده از کارت امتیازی متوازن (B...

[ 22 ] - Developing an urban congestion pricing model by considering sustainability improvement and using a multi-objective optimization approach

This paper introduces a Travel Demand Management (TDM) model in order to decrease the transportation externalities by affecting on passengers’travel choices. Thus, a bi-objective bi-modal optimization model for road pricing is developed aiming to enhance environmental and social sustainability by considering to minimize the air pollution and maximize the social welfare as its objectives. This m...

[ 23 ] - Identification of a Set of Activities to Be Collectively Considered as an Integrated System for Registering Pharmaceutical Supplies in the Ministry of Health and Medical Education, Iran

Background and Aim: One of the complex processes in the Ministry of Health and Medical Education in Iran is the process of registering pharmaceutical supplies. Currently the registration process is a multi-stage process, resulting in parallel services, a waste of time and unnecessary expenses. Therefore, an integrated system will improve the relevant service delivery. The purpose of this study ...