[PDF][PDF] Evaluation of general two-stage network systems in the presence of undesirable and non-discretionary data

J Pourmahmoud, D Norouzi Bene - Iranian Journal of Operations Research, 2022 - iors.ir
Data Envelopment Analysis is one of the most appropriate methods in Evaluation of decision-
making units in the real world. That is why researchers have always tried to improve and …

Global Malmquist productivity index for evaluation of multistage series systems with undesirable and non-discretionary data

J Pourmahmoud… - … in Combinatorics and …, 2024 - comb-opt.azaruniv.ac.ir
Data Envelopment Analysis measures relative efficiency, in which the performances of the
DMUs in a group are compared. In this approach, an efficient unit in one group may be …

[PDF][PDF] Calculating cost efficiency using prices dependent on time via approximate method

J Pourmahmoud, N Kaheh - Iranian Journal of Operations Research, 2022 - iors.ir
In the traditional cost-efficiency model, the information about each decision unit includes
inputs, outputs, and the input prices are fixed and specific. In practice, the price of the inputs …

Combination of the data envelopment analysis and the discriminant analysis for evaluating bankrupt business in a fuzzy environment

N Torabi, R Tavakkoli-Moghaddam… - Fuzzy Information and …, 2022 - ieeexplore.ieee.org
This paper presents a combination of the data envelopment analysis (DEA) and discriminant
analysis (DA) to evaluate the bankrupt business in a fuzzy environment. The DEA is a non …

[PDF][PDF] Optimization of cryptocurrency investment portfolio under uncertainty internal rate of return based on hybrid algorithm

S Mohammadpour, M Rahmaty, FR Roodposhti… - Iranian Journal of …, 2023 - iors.ir
In this article, the modeling and solution of a cryptocurrency capital portfolio optimization
problem has been discussed. The presented model, which is based on Markowitz's mean …