• List of Articles gray number

      • Open Access Article

        1 - Provide a method for customer segmentation using the RFM model in conditions of uncertainty
        mohammadreza gholamian azime mozafari
        The purpose of this study is to provide a method for customer segmentation of a private bank in Shiraz based on the RFM model in the face of uncertainty about customer data. In the proposed framework of this study, first, the values ​​of RFM model indicators including e More
        The purpose of this study is to provide a method for customer segmentation of a private bank in Shiraz based on the RFM model in the face of uncertainty about customer data. In the proposed framework of this study, first, the values ​​of RFM model indicators including exchange novelty (R), number of exchanges (F) and monetary value of exchange (M) were extracted from the customer database and preprocessed. Given the breadth of the data, it is not possible to determine the exact number to determine whether the customer is good or bad; Therefore, to eliminate this uncertainty, the gray number theory was used, which considers the customer's situation as a range. In this way, using a different method, the bank's customers were segmented, which according to the results, customers were divided into three main sections or clusters as good, normal and bad customers. After validating the clusters using Don and Davis Boldin indicators, customer characteristics in each sector were identified and at the end, suggestions were made to improve the customer relationship management system. Manuscript profile
      • Open Access Article

        2 - Performance Evaluation and Ranking of Iranian Insurance Companies by Using Balanced Score card, Shannon Entropy Weighting Method and Grey VIKOR approach
        vafa mousavi mohammad hasan kamfiroozi
        Performance evaluation is a fundamental necessity in facing and coping with changes and continuous improvement activities. Insurance companies to determine your current position and survive and thrive in today's competitive world must continually methods and models to a More
        Performance evaluation is a fundamental necessity in facing and coping with changes and continuous improvement activities. Insurance companies to determine your current position and survive and thrive in today's competitive world must continually methods and models to assess and improve their performance and activities of the organization are ongoing. The aim of this study is to evaluate the performance of insurance companies based on Shannon's weighting entropy and the ranking method is done according to grey VIKOR technique address. The performance evaluation is conducted based on the Balanced Score card method. Moreover, instead of using the linguistic variables and absolute numbers we will use grey numbers Tuesday parameterization. Grey VIKOR is a one of the most developed approaches of multi-criteria decision making under uncertainty conditions. Furthermore, the actual weights based on the concept of objective to regulate the mental weights of Shannon entropy can be used by the decision-makers. The current study has been worked on five insurance companies. According to the data gathered from the questioners the quantity value of the insurance companies has been calculated based on the final weights resulted from Shannon's weighting entropy and the grey VIKOR method. The results revealed that MELLAT insurance company obtained the highest value of (0.9334) and the lowest value (0) belongs to Dana insurance company. Accordingly, Dana Insurance is ranked in the first position, Iran Insurance the second, Alborz Insurance the third, Asia Insurance the fourth and MELLAT insurance the fifth. Manuscript profile