TY - JOUR T1 - Applying a Hybrid DEA-ANN Approach in Evaluation of Balanced Efficiency of the Tehran Stock Exchange Pharmaceutical Companies TT - کاربرد رویکرد ترکیبی تحلیل پوششی داده‌ها و شبکه عصبی مصنوعی در ارزیابی کارایی متوازن شرکت های داروسازی بورس اوراق بهادارتهران JF - JAMLU JO - JAMLU VL - 18 IS - 3 UR - http://jamlu.liau.ac.ir/article-1-1908-en.html Y1 - 2021 SP - 73 EP - 92 KW - Data Envelopment Analysis KW - Neural Network KW - Machine Learning KW - Evaluating the Performance KW - Balanced Scorecard KW - Stock Exchange N2 - Performance evaluation is one of the most important ways to deal with the performance of organizations compared to their previous situation or other competitors, which makes it possible to take actions for performance improvement. In this study, using a hybrid data envelopment analysis and artificial neural network approach, the performance of the Iran Daroo pharmaceutical company has been evaluated. For this purpose, first by reviewing the literature, the company’s evaluation criteria were studied based on the balanced scorecard perspectives and then more important criteria were identified according to the experts' judgments. Accordingly, due to the necessity of studying and evaluating the performance of the Iran Daroo pharmaceutical company, its performance was evaluated over the 4-year period (2014-2017) using DEA, under the assumptions of constant return to scale and output-oriented approach. Next, using an artificial neural network algorithm, the performance of the company was predicted. Finally, the results of different artificial neural networks under different layers were examined and the results of the network with the most appropriate number of layers were compared with the other machine learning algorithms based on the accuracy, correctness, invocation and error indexes. The results illustrate better performance of the proposed model compared to the decision tree, naive Bayes, support vector machine and K- nearest neighbor algorithms. M3 10.52547/jamlu.18.3.73 ER -