Open AccessForecasting the Confidence Interval of Efficiency in Fuzzy DEA
Author(s) -
Azarnoosh Kafi,
Behrouz Daneshian,
Mohsen Rostamy-Malkhalifeh
Publication year - 2021
Publication title -
badania operacyjne i decyzje/operations research and decisions
Language(s) - English
Resource type - Journals
eISSN - 2081-8858
pISSN - 1230-1868
DOI - 10.37190/ord210103
Subject(s) - data envelopment analysis , computer science , ranking (information retrieval) , productivity , interval (graph theory) , fuzzy logic , production (economics) , data mining , operations research , mathematical optimization , artificial intelligence , mathematics , economics , combinatorics , macroeconomics
Data Envelopment Analysis (DEA) is a well-known method that based on inputs and outputs calculates the efficiency of decision-making units (DMUs). Comparing the efficiency and ranking of DMUs in different time periods lets the decision makers to prevent any loss in the productivity of units and improve the production planning. Despite the merits of DEA models, they are not able to forecast the efficiency of future time periods with known input/output records of the DMUs. With this end in view, this study aims at proposing a forecasting algorithm with a 95% confidence interval to generate fuzzy data sets for future time periods. Moreover, managers’ opinions are inserted in the proposed forecasting model. Equipped with the forecasted data sets and with respect to the data sets from previous periods, this model can rightly forecast the efficiency of the future time periods. The proposed procedure also employs the simple geometric mean to discriminate between efficient units. Examples from a real case including 20 automobile firms show the applicability of the proposed algorithm.