List of Articles داده های فازی

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  1 - Application of factor analysis in fuzzy DEA model combined with Markowitz's model portfolio to determine the most efficient companies in the Tehran Stock Exchange
  Hamzeh Pourbabagol Mohammad hossin Nayyeri
  The main goal In this paper is to merge fuzzy DEA with Markowitz model to construct optimized portfolio of efficient companies in Tehran bourse. So, first using of DEA we choose efficient companies as efficient group, although we choose two type of efficient companies w More

  The main goal In this paper is to merge fuzzy DEA with Markowitz model to construct optimized portfolio of efficient companies in Tehran bourse. So, first using of DEA we choose efficient companies as efficient group, although we choose two type of efficient companies with adding controlling relative weight constraints for two type of investors ( risk aversive & risk taker ), Then, using of Markowitz model with regarding of the level of risk aversion, we construct efficient portfolio from efficient group.The large number of criteria is one of the MCDM model's problems for solving this problem we can use of factor analysis to reduce a complex data set to a lower dimension. In this paper with respect to experts's opinions,firstly the main variables corresponding to company's efficiency were assigned ( 15 financial ratio ) and then using of factor analysis we reduse the number of these variables to eight, after that with adding controlling relative weight constraints to DEA model, we construct efficient groap for two type of investors ( risk aversive & risk taker ). due to relativeness of risk and return in terms of investors, whit imputing investors to type( risk aversive & risk taker), efficient groaps were constituted. Finaly investor can, with regarding of the level of his risk aversion, using of Markowitz model, construct optimal portfolio from efficient groaps. Though in final step optimal portfolios were choosed from efficient groaps, thus one of the main problem of Markowitz model that is nonregarding other criterion except risk and return, will be soleved Manuscript profile
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  2 - Evaluation of financial efficiency with non-radial model and fuzzy data and inputs and outputs with nonlinear marginal margin with data envelopment analysis technique
  Saeid savadkouhi Farhad Hosseinzadeh Lotfi Mohammadreza Shahriari Mohsen Vaez-Ghsemi
  Among the important producers and financial organizations in the national economy, the country's major producers, including petrochemicals and refineries, have an important role in improving efficiency and preventing crude oil. In this regard, managers of these organiza More

  Among the important producers and financial organizations in the national economy, the country's major producers, including petrochemicals and refineries, have an important role in improving efficiency and preventing crude oil. In this regard, managers of these organizations are struggling to improve efficiency in light of the economic conditions. The classic approach of data envelopment analysis models takes into account the linear pricing performance for inputs and outputs in the evaluation. In this paper, we examined the efficiency of the top ten petrochemical companies in the year 1395 by modeling with the help of auxiliary variables and nonlinear values ​​of inputs and outputs. An important feature of the proposed model is that it considers nonlinear values ​​of inputs and outputs. In the DEA total analysis, all weights are taken linearlyThey can not show the reality of the issue in many practical applications. Manuscript profile
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  3 - Assessing the Performance of the Organization Using the Combined Approach of Fuzzy Data Envelopment Analysis and Balanced Scorecard (Case study: Tejarat Bank Branches of Yazd Province)
  Seyed Habibollah Mirghafoori Ali Morovati Vahid Namavaran Fatemeh Zamani
  In today’s competitive environment in manufacturing and services process, the organizations are confronted with the need to have indicators and patterns for assessing the performance. The balanced scorecard is a successful instrument in implementing the strategic More

  In today’s competitive environment in manufacturing and services process, the organizations are confronted with the need to have indicators and patterns for assessing the performance. The balanced scorecard is a successful instrument in implementing the strategic plans of the organization. The present paper aims to evaluate the performance and rank the branches of Tejarat bank in Yazd province based on their efficiency. The balanced scorecard is an appropriate device for designing and measuring the performance in terms of four perspectives including financial, customer, internal process and growth and innovation. This study also intends to use a combining model of BSC and fuzzy data envelopment analysis to evaluate the performance of the branches. This is a descriptive study using field study along with the library, observation and sometimes interview to gather the required information. The findings reveal that among the twenty-six examined branches, 11 branches are efficient. Additionally, the cross efficiency ranking has been used to rank the branches. Finally, the sensitivity analyses demonstrate that ATM has the highest impact on the efficiency of the units followed by the position and the number of employees. On the other hand, the total bank deposits have the least impact on the efficiency of the banks. Manuscript profile
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  4 - An Analytical Study the Effect of Globalization on Labor Market
  Sahand Daneshvar Somayyeh Layazali
  Among the four economy markets, the labor market plays a pivotal role in establishing relations between supply and demand as well as in balancing the mass economic variables like employment. The socio-economic consequences of the balance in labor market are of great imp More

  Among the four economy markets, the labor market plays a pivotal role in establishing relations between supply and demand as well as in balancing the mass economic variables like employment. The socio-economic consequences of the balance in labor market are of great importance for economists and policy makers.  A direct consequence of such balance is the prevention of costs waste resulting from unemployment. Employment is a significant parameter in economic development, income distribution, and human self-esteem. On the contrary, unemployment causes a number of abnormalities with a wide range of economic, social and political aftermaths. Governments also consider unemployment as an important economic phenomenon and try to find solutions for this problem. It is observed that all countries, whether developed or developing, come across unemployment. The population structure of Asian countries and a great number of labor forces and lack of proper facilities have made unemployment the most important socio-economic problem. Globalization tends to influence the labor market structure, and (un)employment. As the developing countries play roles in labor market, they should be considered as an effective variable in the labor market. Manuscript profile
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  5 - Evaluating the Effect of Organizational Culture on Non-Financial Performance through the Mediating Role of Knowledge Utilitization and Application by Using Fuzzy Network Data Envelopment Analysis (FNDEA)
  Mohsen shafenikabadi Amir Salimi
  This paper aims to investigate the relationship between Organizational Culture and Knowledge Utilitization and Application for ranking non-financial performance of Department of Sahand Tire Company. The main purpose of the study is presenting a model for improvement of More

  This paper aims to investigate the relationship between Organizational Culture and Knowledge Utilitization and Application for ranking non-financial performance of Department of Sahand Tire Company. The main purpose of the study is presenting a model for improvement of non-financial performance of the department and studying the effect of organizational culture on non-financial performance with the mediating role of knowledge utilitization and application by using slack-based fuzzy network data envelopment analysis (FNDEA) on the basis of excess of inputs and shortage of outputs. The related data were collected by a questionnaire distributed among 117 personnel from 12 units on the basis of random-classified sampling. The findings showed that the non-financial performance of workshop and manufacturing Process are better than the performance of other units. Also, findings showed that knowledge utilitization and application factor has a significant and positive role in the relationship between organizational culture and non-financial performance. Manuscript profile
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  6 - Computing the Optimal Solution of Technology Selection Model with Fuzzy Data
  Sahand Daneshvar Sahar Khoshfetrat
  This paper introduces a method to find the optimal solution of technology selection model with fuzzy data. The paper suggests a simple computational method to obtain the optimal solution of fuzzy linear programming (LP) problem used in technology selection without the n More

  This paper introduces a method to find the optimal solution of technology selection model with fuzzy data. The paper suggests a simple computational method to obtain the optimal solution of fuzzy linear programming (LP) problem used in technology selection without the need for solving any fuzzy LP. Clearly the contribution of this research is that it reduces the fuzzy computational complexity, which is significant when dealing with more complex computations.   Manuscript profile
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  7 - Evaluation of bank branches Performance by combining two systems "balanced scorecard" and "fuzzy DEA" (Case Study: Tabriz selected branches of Bank Sepah)
  Alireza Bafande Samera Rafie
  In the current era, the amazing changes in the management knowledge necessitate the existence of measurement systems so much so that the absence of a measurement system in the different dimensions of an organization such measurement of the use facilities and resources, More

  In the current era, the amazing changes in the management knowledge necessitate the existence of measurement systems so much so that the absence of a measurement system in the different dimensions of an organization such measurement of the use facilities and resources, personnel, goals and strategies is considered one of the signs of organization illness. There are different techniques for performance measurement, each of which has strong and weak points. In the present paper, a model for measuring the performance of the bank branches by combining “balance score card” with “fuzzy data envelopment analysis”. The statistical population includes all the branches of Sepah Bank of Tabriz totaling 42. The efficiency measurement indices have been specified through the use of balanced scorecard and with regard to the research literature. For data collection, a researcher – devised questionnaire was used after its validity and reliability had been confirmed. Data envelopment analysis was applied for data analysis. The results show that 10 branches out of the 42 around Tabriz are specified as strongly efficient, 27 as efficient, and the remaining 5 branches as inefficient. Manuscript profile
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  8 - پیاده‌سازی DEA فازی درون مدل PEM جهت ارزیابی عملکرد سازمان‌های پروژه‌محور: یک مطالعۀ موردی
  اویس ترابی محمّدمیلاد احمدی روح‌الله تولایی
  سازمان های پروژه محور در صنایع بالادستی سهم زیادی از منابع ملی را در اختیار دارند و نقش مهمی در توسعه یک کشور ایفا می کنند. ارزیابی عملکرد سازمان های پروژه محور می تواند به مدیران کمک کند تا از ورودی ها به طور موثر استفاده کنند و راه خود را برای دستیابی به اهداف هموار ک More

  سازمان های پروژه محور در صنایع بالادستی سهم زیادی از منابع ملی را در اختیار دارند و نقش مهمی در توسعه یک کشور ایفا می کنند. ارزیابی عملکرد سازمان های پروژه محور می تواند به مدیران کمک کند تا از ورودی ها به طور موثر استفاده کنند و راه خود را برای دستیابی به اهداف هموار کنند. برای ارزیابی عملکرد سازمان های پروژه محور، شاخص های کمی و کیفی زیادی وجود دارد. محاسبه کارایی از طریق تحلیل پوششی داده ها (DEA) یک شاخص رایج برای ارزیابی عملکرد در چنین شرکت هایی است. در مدل سنتی DEA داده‌های واضح مورد نیاز است در حالی که در دنیای واقعی، بیشتر داده‌ها نادقیق و نامطمئن هستند. یکی از دلایل اصلی عدم قطعیت مربوط به اطلاعات غیر کمی، ناقص و دست نیافتنی است که باعث ادغام منطق فازی و مجموعه های فازی در مدل های مختلف مانند DEA می شود.ایدۀ اصلی پژوهش حاضر ترکیب رویکردهای کمی و کیفی در ارزیابی عملکرد برای بهره‌گیری از هر دو و دستیابی به نتایج دقیق‌تر است. از این رو، در این مقاله، یک مدل ترکیبی مبتنی بر تحلیل پوششی داده های فازی (FDEA) و مدل تعالی پروژه (PEM) برای ارزیابی عملکرد در سازمان های پروژه محور پیشنهاد شده است. ابتدا ارزیابی عملکرد توسط مدل PEM داده های فازی انجام می شود. سپس پیاده سازی فازی DEA در مدل PEM انجام می شود که در آن ورودی ها و خروجی های مدل FDEA معیارهای مدل PEM هستند. مدل هیبریدی پیشنهادی برای ارزیابی 30 شرکت پتروشیمی در ایران استفاده شده است. مقایسه نتایج هر دو مدل نشان‌دهنده ضریب همبستگی تقریباً 90/0 در سطح معنی‌داری 01/0 است که نشان‌دهنده همبستگی مناسب بین دو مدل است. Manuscript profile
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  9 - روش ترکیبیBSC و VFB-DEAدر محیط فازی جهت طراحی مدلی برای ارزیابی عملکرد بیمارستان ها
  علیرضا علی نژاد جواد خلیلی
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  10 - Performance Evaluation Model for Hospitals Using BSC and Fuzzy VFB-DEA
  alireza alinezhad Javad Khalili
  Improving efficiency is one of the most important indicators to evaluate the Organization performance and the most basic and the first step to improve efficiency is measure and evaluate it. So far, little researches has been conducted on the hospitals performance evalua More

  Improving efficiency is one of the most important indicators to evaluate the Organization performance and the most basic and the first step to improve efficiency is measure and evaluate it. So far, little researches has been conducted on the hospitals performance evaluation using the combined of balanced scorecard (BSC) and data envelopment analysis (DEA). But in the researches has found by the researcher; 1. Simple performance of units has calculated using DEA classic models, which have two limitations: a) self-evaluation; and b) a lack of recognition between efficient DMUs; The new VFB-DEA cross efficiency model used in this research eliminates these limitations and makes the evaluation results more reasonable. 2. Conditions of uncertainty are not considered if some performance indicators require human judgment, to overcome this problem, the development of the VFB-DEA cross efficiency   model in fuzzy environment is done by the researchers. This research attempts by using fuzzy data envelopment analysis (FDEA) and BSC to evaluate the public hospitals performance in Mashhad during 2014. In this regard, the indicators used to evaluate the performance of health care in situations in past studies and with health experts, three indicators of Staff satisfaction, capita Education and the cost of medicine and supplies, and three indicators of patient satisfaction and the average length of stay and percentage of bed occupancy, in four perspectives of the balanced scorecards elected as input indicators and output indicators. Then, using a new model VFB-DEA in fuzzy environment, mentioned units were evaluated. The results show in the VFB-DEA model thehospital2is ranked first and the hospital 1 and 6 are the most inefficient hospitals. Given the uncertainty and determination of input and output indicators based on a balanced scorecard, the proposed model is more accurate than the past models and enables managers to make better and more accurate decisions to improve the efficiency of organizations. Manuscript profile