scholarly journals Data envelopment analysis with fuzzy complex numbers; with an empirical case on power plants of Iran

2020 ◽  
Author(s):  
Mahmood Esfandiari ◽  
Saber Saati
Keyword(s):  
Data Envelopment Analysis ◽  
Power Plants ◽  
Complex Numbers ◽  
Complex Data ◽  
Data Envelopment ◽  
Steam Power ◽  
Dea Model ◽  
Steam Power Plants ◽  
Using Data ◽  
Α Level

Using Data Envelopment Analysis (DEA) in complex environment is an idea that has recently presented for measuring the relative efficiencies of a set of Decision Making Units (DMUs) with complex inputs and outputs. The values of the input and output data in real-world problems appear sometimes as fuzzy complex number. For dealing with these types of data in DEA, we need to design a new model. This paper proposes a DEA model with triangular fuzzy complex numbers and solve it by using the concept of the data size and the α-level approach. This method transforms DEA model with fuzzy complex data to a linear programing problem with crisp data. In the following, a ranking model is also developed using the above approach to rank the efficient DMUs. The proposed method is presented for the first time by the authors and there is no similar method. Finally, we present a case study in the generators of the steam power plants to demonstrate the applicability of the proposed methods in the power industry.

scholarly journals Measurement of Ministry/Institution Budget Performance Efficiency Using Data Envelopment Analysis (DEA)

2020 ◽  
Vol 2 (1) ◽  
pp. 43
Author(s):  
Shiddiq Ardhi Irawan
Keyword(s):  
Data Envelopment Analysis ◽  
Data Envelopment ◽  
Performance Achievement ◽  
Dea Model ◽  
Constant Return ◽  
Crs Model ◽  
The Government ◽  
Using Data ◽  
Measurement And Evaluation ◽  
Model Approach

Efficiency is one of the tools used by the Government to measure the success of an activity. Based on PMK Number 214/ PMK.02/2017 it is regulated regarding the measurement and Evaluation of Budget Performance for the implementation of Work Plans and Ministries/Institutions Budgets. To measure budget performance achievement based on aspects of implementation 4 (four) variables i.e. budget absorption, output achievements, efficiency, and consistency of budget absorption towards planning, are used. This study aims to measure the efficiency level of Ministries/Institutions budget performance using Data Envelopment Analysis (DEA). However, the variables used are not only based on measurement aspects of implementation according to PMK Number 214/PMK.02/2017 but also the number of satker (satuan Kerja). The approach used in the DEA model is Constant Return to Scale (CRS) model and Variable Return to Scale (VRS) model. This study uses the DEA model approach by comparing the results of the CRS model with VRS model. Based on DEA results, the number of Ministries/Institutions that have efficient scores is less than the number of Ministries/Institutions with inefficient scores. In addition, based on the value of slacks in each Ministries/Institutions, the variables that need to be improved are the coordination among satkers in when they are recording their performance achievements in the SMART application. Other variables that also require improvements are the ministry/agency’s willingness to revise their Disbursement Plan (RPD) after each budget revision and the speed at which they spend their budget once DIPA is stipulated.

scholarly journals Performance Evaluation of Solar PV Power Plants in Taiwan Using Data Envelopment Analysis

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4498
Author(s):  
June Raymond Leonen Mariano ◽  
Mingyu Liao ◽  
Herchang Ay
Keyword(s):  
Performance Evaluation ◽  
Data Envelopment Analysis ◽  
Power Plants ◽  
Data Envelopment ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Power Capacity ◽  
Future Studies ◽  
Precise Measure ◽  
Using Data

Due to the worldwide impact of industrialization, renewable sources of energy from solar play a huge role in supplying the domestic demand in Taiwan. This paper aims to impart an unbiased performance evaluation of different solar photovoltaic (PV) power plants around Taiwan. This study utilized data envelopment analysis (DEA) using the epsilon-based measure (EBM) model to compute the performance efficiency and ranking of the solar PV power plants. Additionally, the model is used for its advantage of combined radial and non-radial measures to achieve a more precise measure of efficiency. The results show that among nine selected solar PV plants, the top-performing DMU was I (8200051) from the southern part of Taiwan. Therefore, this study recommends that EBM can be a useful tool to evaluate the performance of solar PV power plants using multiple inputs and outputs. Additionally, this study will contribute to sustaining and developing the existing solar PV power capacity while achieving the installation of 20GW of solar energy as part of Taiwan’s goal. Even though the study has achieved the set goals, various restrictions remain present. Future studies could address micro and macro-level factors that influence the performance of solar PV power plants, which are not included in this study.

Strategic resource management model and data envelopment analysis for benchmarking of Indian retailers

2016 ◽  
Vol 23 (2) ◽  
pp. 286-312 ◽  
Author(s):  
Aradhana Gandhi ◽  
Ravi Shankar
Keyword(s):  
Data Envelopment Analysis ◽  
Resource Management ◽  
Data Envelopment ◽  
Planning Tool ◽  
Content Type ◽  
Dea Model ◽  
Strategic Resource ◽  
Using Data ◽  
Practical Implications ◽  
Better Than

Purpose – The purpose of this paper is to use strategic resource management (SRM) model and data envelopment analysis (DEA) for benchmarking Indian retailers. The study ascertains, how a retailer can benchmark its performance at company level, global level, store level and finally at merchandise category level using diverse strategies for inventory, space and people. Design/methodology/approach – The paper aims to use SRM model, for evaluating and comparing the performance of two generalized retailers Shoppers Stop and Trent. These two generalized retailers are benchmarked with another best-in-class retailer, Wal-Mart using the SRM model. The benchmarking exercise brings out improvement directions for the Indian retailers. In the next part of the study, economic efficiencies of 11 generalized retailers are ascertained using DEA model. Finally, a study is conducted to understand, how SRM model can be used as a planning tool for deciding alternative inventory, space and people strategies at store level as well as at merchandise category level. Findings – Based on the data for the year 2011-2012, Trent’s performance is comparatively better than Shoppers Stop. The paper offers suggestion to improve its performance. Next, it was found that the performance of Wal-Mart is superior to the two Indian retailers. The study offers direction to the two retailers to devise appropriate strategies to improve their performance. The study further ascertains the relative efficiencies of 11 generalized retailers in the country. Finally, an illustration of how a retailer can use the SRM model as a tool for planning alternative strategy for inventory, space and people in a particular merchandise category is offered using data from a retail firm. The study has used “Jeans” and “Toys” as two categories to demonstrate this concept. Practical implications – The examples considered in this paper can be used by practicing retailers to plan and benchmark their performance. Originality/value – The study proposes a method, by which retailers can examine ways to plan and improve their operations and profitability by using the SRM and DEA model. The study is therefore relevant to practicing retailers as well as academicians.

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