  | 
              
				  1) model.
				  Grey Prediction Model for Forecasting Electricity Consumption [Volume 7, Number 4] | 
              
              
                | 
              
				  Air/Fuel Ratio
				  Solution of the non-linear first-order differential equations of the ideal gas: leveraging laminar flame speed in innovative modelling techniques for SI engine performance prediction [Volume 12, Number 3] | 
              
              
                | 
              
				  Analytic Hierarchy Process (AHP).
				  Evaluation model for the human resources management with analytic hierarchy process (Part: Power distribution companies) [Volume 11, Number 1] | 
              
              
                | 
              
				  Analytical network process
				  Assessing the effectiveness of knowledge management using Analytic Network Process [Volume 9, Number 1] | 
              
              
                | 
              
				  Artificial Intelligence in Medicine
				  Design and development of a customized language model for medicine: PerMed [Volume 12, Number 3] | 
              
              
                | 
              
				  Bibliometric Analysis.
				  A bibliometric analysis by using VOSviewer for FinTech research [Volume 12, Number 1] | 
              
              
                | 
              
				  Brownian motion process
				  An optimal method based on rationalized Haar wavelet for approximate answer of stochastic Ito-Volterra integral equations [Volume 6, Number 4] | 
              
              
                | 
              
				  Capital Intensity.
				  The Choice between Equity and Debt: Empirical Evidence from the Iranian Companies [Volume 7, Number 4] | 
              
              
                | 
              
				  Closest Targets.
				  Sequential benchmarking to achieve the closest cross-sectional targets in DEA [Volume 11, Number 3] | 
              
              
                | 
              
				  Cloud Computing
				  Evaluating high-consumption and unusual subscribers in the smart gas meter network using machine learning and the Internet of Things in the cloud environment [Volume 13, Number 3] | 
              
              
                | 
              
				  Cooperative Insurance
				  Identification and prioritization of factors influencing the purchase of insurance portfolios with AHP approach [Volume 13, Number 1] | 
              
              
                | 
              
				  Credibility Measure
				  Nonparametric Shewhart-type quality control charts in fuzzy environment [Volume 9, Number 3] | 
              
              
                | 
              
				  Cross Efficiency
				  Measuring ICT-opportunity index using generalized data envelopment analysis [Volume 12, Number 2] | 
              
              
                | 
              
				  Customer
				  How customers select online transportation platforms: An ISM based model [Volume 12, Number 4] | 
              
              
                | 
              
				  DEMATEL Technique.
				  Prioritization of stakeholders in hospitals of Guilan University of medical sciences using a combined analysis network process and DEMATEL [Volume 13, Number 2] | 
              
              
                | 
              
				  Data Envelopment Analysis
				  Evaluating the efficiency and ranking of west Guilan municipalities of urban services section using data envelopment analysis (DEA)  [Volume 7, Number 2] | 
              
              
                | 
              
				  Deep Learning
				  An Efficient Framework for Sperm Cell Analysis Using Deep Learning Methods to Improve Infertility Treatment [Volume 12, Number 3] | 
              
              
                | 
              
				  Delay in Payments
				  Mathematical Modeling for an Integrated Inventory System with Two-level    Trade Credit and Random Defectiveness in Transport [Volume 9, Number 4] | 
              
              
                | 
              
				  Deviation and Weight dissimilarity.
				  Determining a common set of weight by reducing the flexibility of weight profile [Volume 11, Number 1] | 
              
              
                | 
              
				  EMD.
				  Empirical mode decomposition and ANFIS network-based prediction technique for financial forecasting [Volume 11, Number 4] | 
              
              
                | 
              
				  Economical Return
				  Sustainability evaluation of supply chain by inverse data envelopment analysis model: a case study of the power industry [Volume 12, Number 1] | 
              
              
                | 
              
				  Efficiency in Management
				  A study on Entrepreneurship and Innovation in Management [Volume 9, Number 1] | 
              
              
                | 
              
				  Efficiency.
				  Calculating the efficiency and productivity of decision making units with negative data [Volume 10, Number 1] | 
              
              
                | 
              
				  Electricity Generation Company
				  Congestion estimation of selected Iranian electricity generation firms using data envelopment analysis [Volume 11, Number 4] | 
              
              
                | 
              
				  Emergency Brake
				  Offering a machine learning based algorithm, with the purpose of emergency brake during simulated driving based on EEG signal [Volume 11, Number 3] | 
              
              
                | 
              
				  Environmental Impact.
				  Designing a model for optimizing reverse logistics based on waste management to reduce environmental impacts [Volume 11, Number 4] | 
              
              
                | 
              
				  Environmental assessment
				  Undesirable input in production process: A SBM-DEA model [Volume 12, Number 3] | 
              
              
                | 
              
				  Error Analysis
				  A numerical method for solving distributed order time fractional COVID-19 virus model based on Legendre wavelets optimization approach [Volume 12, Number 2] | 
              
              
                | 
              
				  Error value.
				  An Approach to Increasing Reliability Using Syndrome Extension [Volume 6, Number 1] | 
              
              
                | 
              
				  Family Health Program.
				  Ranking Healthcare Centers Using Fuzzy Analytic Hierarchy Process and TOPSIS: Iranian Experience [Volume 6, Number 1] | 
              
              
                | 
              
				  Feasibility and Efficiency.
				  A two- phase approach for solving fuzzy flexible linear programming problems with fuzzy objective coefficients [Volume 11, Number 1] | 
              
              
                | 
              
				  Fletcher System
				  Optimization of active microarchitecture design [Volume 12, Number 2] | 
              
              
                | 
              
				  Fuzzy DEMATEL Technique.
				  Investigating the Relationship between Nurses’ Job Burnout and its Related Psychological Variables in Iranian Public Hospitals Using Fuzzy DEMATEL Method [Volume 7, Number 4] | 
              
              
                | 
              
				  Fuzzy Measure.
				  Some New Concepts About IT2FNs With Their Usage in Group Decision-Making Problems [Volume 8, Number 1] | 
              
              
                | 
              
				  Generalized Hukuhara differentiability
				  On the hybrid conjugate gradient method for solving fuzzy optimization problem [Volume 9, Number 1] | 
              
              
                | 
              
				  Geographic Information System
				  Multi-criteria decision making for evaluating the performance of tourism service units [Volume 13, Number 1] | 
              
              
                | 
              
				  Grey Prediction
				  Grey prediction in linear programming problems [Volume 9, Number 1] | 
              
              
                | 
              
				  Health Supply Chain
				  A Review Of DEA Approaches For Health Supply Chain [Volume 8, Number 2] | 
              
              
                | 
              
				  Homomorphism Near-rings
				  Some properties of Pythagorean fuzzy ideal of near-rings [Volume 9, Number 3] | 
              
              
                | 
              
				  Homotopy analysis method.
				  Optimization of Solution Regularized Long-wave Equation by Using Modified Variational Iteration Method  [Volume 7, Number 2] | 
              
              
                | 
              
				  Hyperplane
				  A model for finding the most efficient DMU in DEA [Volume 8, Number 1] | 
              
              
                | 
              
				  Implementation Process
				  The process and infrastructures of the implementation of the model of documenting the experiences of employees [Volume 12, Number 2] | 
              
              
                | 
              
				  In-Pipe Microrobot.
				  Performance assessment of in-pipe inspection microrobots by FAHP method [Volume 9, Number 4] | 
              
              
                | 
              
				  Industry.
				  Estimate the profitability of accepted companies in Tehran Stock Exchange: Because of the relative position (ROE) of the companies industry [Volume 6, Number 1] | 
              
              
                | 
              
				  Input/output Indicator
				  Efficiency evaluation and ranking of Iranian accounting Journals: A –DEA based approach [Volume 13, Number 2] | 
              
              
                | 
              
				  Iran
				  USING FUZZY GOAL PROGRAMMING TECHNIQUE IN OPTIMAL CROPPING PATTERN [Volume 7, Number 1] | 
              
              
                | 
              
				  KARUSH-KUHN-TUKER APPROACH
				  A New Method For Solving Linear Bilevel Multi-Objective Multi-Follower Programming Problem [Volume 6, Number 4] | 
              
              
                | 
              
				  Kuhn- Tucker's Optimality Conditions.
				  Interactive multiple objective programming in optimization of the fully fuzzy quadratic programming problems [Volume 10, Number 1] | 
              
              
                | 
              
				  Lecturers
				  Assignment problem and its application in Nigerian institutions: Hungarian method approach [Volume 10, Number 1] | 
              
              
                | 
              
				  Linear Programming
				  Application of linear programming techniques in production planning [Volume 9, Number 3] | 
              
              
                | 
              
				  M-Matrix
				  Proof of a conjecture of Yuan and Zontini on preconditioned methods for M-matrices [Volume 9, Number 4] | 
              
              
                | 
              
				  Machine Learning
				  Airline passenger’s sentiment analysis for improving the quality of airline services by using a deep learning approach [Volume 11, Number 2] | 
              
              
                | 
              
				  Malmquist Index
				  Environmental productivity growth of selected Iranian economic sectors: A Malmquist approach [Volume 12, Number 4] | 
              
              
                | 
              
				  Managerial Decision-Making
				  A new approach to marginal rate analysis in DEA with a focus on maintaining profitability [Volume 13, Number 1] | 
              
              
                | 
              
				  Manufacturing
				  Modeling the Drivers of Eco-Innovation Adoption within Iranian Manufacturing Small and Medium-Sized Enterprises [Volume 7, Number 2] | 
              
              
                | 
              
				  Maximizing Activity Floatiness
				  A multi-objective mathematical model for planning, scheduling and increasing projects productivity [Volume 12, Number 1] | 
              
              
                | 
              
				  Merge and Aggregation
				  Inverse data envelopment analysis for merging two-stage network systems [Volume 11, Number 4] | 
              
              
                | 
              
				  Meta-Heuristic
				  A Tri-objective model for multi-product multi-period inventory planning with substitutable goods and random demand [Volume 11, Number 3] | 
              
              
                | 
              
				  Meta-Heuristic Algorithms
				  Using metaheuristic algorithm to solve a multi objective portfolio selection problem: Application in renewable energy investment policy [Volume 7, Number 4] | 
              
              
                | 
              
				  Modulus Model
				  A New fixed point model for linear complementarity problems [Volume 7, Number 3] | 
              
              
                | 
              
				  Multi-Objective      function
				  Geometric Programming Problem with Trapezoidal Fuzzy Variables [Volume 6, Number 4] | 
              
              
                | 
              
				  Multi-Objective Linear Programming (MOLP)
				  Efficiency analysis in multi-period system using DEA-R models [Volume 11, Number 2] | 
              
              
                | 
              
				  Multi-parametric Approach
				  A new solving approach for fuzzy flexible programming problem in uncertainty conditions  [Volume 9, Number 1] | 
              
              
                | 
              
				  Nanotechnology
				  A revised Fuzzy - PROMETHEE method , using Fuzzy Distance and Similarity Measures [Volume 7, Number 2] | 
              
              
                | 
              
				  Neutrosophic Number
				  A new approach for solving neutrosophic integer programming problems [Volume 9, Number 1] | 
              
              
                | 
              
				  Non-Linear and Multi-Objective Model.
				  Modifying the resource portfolio and expenses of Iranian bank branches using multi-objective optimization models [Volume 11, Number 1] | 
              
              
                | 
              
				  Nonlinear Value Function
				  DEA cross efficiency evaluation in presence of linear and nonlinear data [Volume 9, Number 2] | 
              
              
                | 
              
				  Optimization
				  Coefficient of performance optimization of a single stage thermoelectric cooler [Volume 9, Number 2] | 
              
              
                | 
              
				  Overall Performance
				  Fuzzy Efficiency Measures in DEA: A New Approach based on Fuzzy DEA Approach with Double Frontiers [Volume 6, Number 1] | 
              
              
                | 
              
				  Overall efficiency
				  Evaluating Subunits Importance in Performance Measurement of Network Systems in Data Envelopment Analysis [Volume 6, Number 1] | 
              
              
                | 
              
				  PERT Technique
				  A Monte Carlo simulation to identify the effect of delays in construction project scheduling [Volume 12, Number 2] | 
              
              
                | 
              
				  Parameter Estimation and Goodness of Fit.
				  A new four-parameter distribution: properties and applications [Volume 9, Number 2] | 
              
              
                | 
              
				  Parametric approach.
				  Global optimization of fractional posynomial geometric programming problems under fuzziness [Volume 6, Number 4] | 
              
              
                | 
              
				  Performance Analysis
				  Evaluating national energy efficiency using hybrid DEA-Cross efficiency and machine learning models [Volume 13, Number 1] | 
              
              
                | 
              
				  Present Value
				  A heuristic method to calculate the real internal rate of return (RIRR) [Volume 10, Number 1] | 
              
              
                | 
              
				  Prioritization
				  A fuzzy DEMATEL-based framework for prioritizing waste reduction tools in factories [Volume 12, Number 3] | 
              
              
                | 
              
				  Private Ownership
				  Providing a model for the impact of performance on the relationship between corporate governance mechanisms and the probability of firing the CEO [Volume 12, Number 1] | 
              
              
                | 
              
				  Productivity
				  Mathematical modeling to evaluate knowledge management in the development of industrial clusters [Volume 12, Number 4] | 
              
              
                | 
              
				  Project Utilities.
				  A novel cooperative game between client and subcontractors based on technical characteristics [Volume 9, Number 4] | 
              
              
                | 
              
				  QPSO Algorithm
				  Wavelet transform and ANFIS network-based prediction technique for forecasting confirmed cases of Covid-19 in Iran [Volume 11, Number 1] | 
              
              
                | 
              
				  Quadratic Assignment Problem
				  Solve the facility’s layout problem by developed genetic algorithm [Volume 8, Number 1] | 
              
              
                | 
              
				  RNN.
				  A review of the methods of recognition multimodal emotions in sound, image and text [Volume 12, Number 1] | 
              
              
                | 
              
				  Ranking.
				  A New Goal programming approach for cross efficiency evaluation [Volume 7, Number 2] | 
              
              
                | 
              
				  Ranking.
				  A novel mixed-integer linear programming model for identifying the most efficient DMU in data envelopment analysis [Volume 13, Number 2] | 
              
              
                | 
              
				  Recognition
				  A novel method for clustering basketball players with data mining and hierarchical algorithm [Volume 11, Number 4] | 
              
              
                | 
              
				  Restricted Variation.
				  Fuzzy free replicability model with restricted variation [Volume 11, Number 3] | 
              
              
                | 
              
				  Returns to Scale
				  Identify the status of returns to scale of the multi-period two-stage systems and efficiency decomposition [Volume 11, Number 4] | 
              
              
                | 
              
				  Risk  Management
				  A novel attitude of robust optimization and risk management for network designing of closed-loop green supply chain [Volume 12, Number 2] | 
              
              
                | 
              
				  Risk Taking
				  Firm Size as a Moderator between Corporate Governance and Risk-Taking in Malaysian Banks [Volume 8, Number 3] | 
              
              
                | 
              
				  Runge-Kutta Method.
				  Numerical solution for the fifth-order KdV equation by using spectral methods [Volume 11, Number 3] | 
              
              
                | 
              
				  Scalarization Methods
				  An effective method based on the angular constraint to detect Pareto points in bi-criteria optimization problems [Volume 7, Number 3] | 
              
              
                | 
              
				  Scale
				  Service operations efficiency and competitive orientations in the telecommunication industry: a data envelopment analysis approach [Volume 11, Number 3] | 
              
              
                | 
              
				  Scale efficient target
				  Scale Efficient Targets in Production Systems With Two-stage Structure Under Imprecise Data Assumption [Volume 7, Number 1] | 
              
              
                | 
              
				  Scrap Items.
				  An Economic Production Quantity Model for Defective Items with Sales Return Service, Scrap Items and Rework [Volume 6, Number 1] | 
              
              
                | 
              
				  Semi-Infinite Linear Programming
				  A new solving approach for fuzzy multi-objective programming problem in uncertainty conditions by using semi-infinite linear programing [Volume 9, Number 1] | 
              
              
                | 
              
				  Shapley Value.
				  Obtaining a possible allocation in the bankruptcy model using the Shapley value [Volume 8, Number 4] | 
              
              
                | 
              
				  Simulated annealing.
				  A hybrid metaheuristic algorithm for solving a rollon–rolloff waste collection vehicle routing problem considering waste separation and recycling center [Volume 6, Number 2] | 
              
              
                | 
              
				  Smart Circular Supply Chain
				  Leveling factors affecting the smart circular supply chain [Volume 13, Number 1] | 
              
              
                | 
              
				  Solid Transportation Problem.
				  A hybrid two-phase approach for the solid transportation problem under certainty conditions based on goal programming and multi-parametric models [Volume 13, Number 2] | 
              
              
                | 
              
				  Stock Exchange
				  Estimation the value at risk using an adaptive model [Volume 7, Number 3] | 
              
              
                | 
              
				  Strictly Increasing Function
				  More on equivalent formulation of implicit complementarity problem [Volume 12, Number 3] | 
              
              
                | 
              
				  Super Efficiency
				  Extending the Super Efficiency Method to Rank the Non-Extreme Efficient Units [Volume 6, Number 1] | 
              
              
                | 
              
				  Supply Chain Risk
				  Design of an analytical model based on fuzzy data envelopment analysis approach for evaluating the sustainability capability of supply chain systems against various risks [Volume 13, Number 2] | 
              
              
                | 
              
				  Supply chain finance
				  Identify and prioritize industry 4.0 technology in supply chain finance based on sustainability approach [Volume 12, Number 4] | 
              
              
                | 
              
				  Sustainable Supply Chains.
				  Fuzzy revenue efficiency in sustainable supply chains [Volume 9, Number 1] | 
              
              
                | 
              
				  Sustainable supply chain
				  Greenhouse gases allocation efficiency assessment in the electricity supply chain using the zero-sum gains model: a case study in the power industry [Volume 12, Number 4] | 
              
              
                | 
              
				  System Dynamics Model
				  Designing a dynamic model for managing the resources and expenditures of the social security organization using grounded theory and multi-criteria decision-making (MCDM) [Volume 13, Number 2] | 
              
              
                | 
              
				  Tabu Search (TS) Algorithm
				  Multi-mode resource constrained time-cost trade off problem by including tardiness penalty cost of renewable resources and fuzzy duration [Volume 11, Number 2] | 
              
              
                | 
              
				  Telecommunication
				  Measuring attractiveness by a categorical based evaluation technique (macbeth) for churn and retention of decision of subscribers in the Nigeria telecommunication industry [Volume 11, Number 2] | 
              
              
                | 
              
				  Transformer
				  Technological capabilities assessment in the transformer industry: A case-study of investigating technological capabilities in Iran-Transfo Company [Volume 9, Number 2] | 
              
              
                | 
              
				  Transportation Problem
				  Sensitivity Analysis of Costs in Grey Transportation Problems [Volume 12, Number 1] | 
              
              
                | 
              
				  Unequal Prices.
				  A new source of inefficiency due to the inappropriate choice of price in data envelopment analysis [Volume 11, Number 1] | 
              
              
                | 
              
				  Unmanned Aerial Vehicle
				  Mathematical  Dynamics, Kinematics Modeling and PID Equation Controller Of  QuadCopter [Volume 7, Number 1] | 
              
              
                | 
              
				  Water and Wastewater Company
				  Evaluation of performance of different units of Water and Wastewater Company using DEA [Volume 9, Number 3] | 
              
              
                | 
              
				  Weber Model
				  Integrated technique for the optimization of healthcare facility problem [Volume 10, Number 1] | 
              
              
                | 
              
				  Weight Dissimilarity
				  Common set of weights: a double frontier DEA approach [Volume 11, Number 2] | 
              
              
                | 
              
				  Wheat Production
				  A super-efficiency DEA model for ranking production units with network structure [Volume 8, Number 1] | 
              
              
                | 
              
				  advertising cost
				  Three levels of sustainable production inventory model for defective and deteriorating items with rework under marketplace selling price [Volume 11, Number 2] | 
              
              
                | 
              
				  carry-over.
				  Dynamic DEA: A Hybrid Measure Approach [Volume 6, Number 4] | 
              
              
                | 
              
				  chance constrained programming
				  A Suggested Approach for Stochastic Interval-Valued Linear Fractional Programming problem [Volume 7, Number 1] | 
              
              
                | 
              
				  firefly algorithm
				  Securing AODV routing protocol against the black hole attack using Firefly algorithm [Volume 6, Number 4] | 
              
              
                | 
              
				  interpretive structural modeling‚ Comprehensive Model
				  Development of a comprehensive model to predict stock prices In the stock market with an interpretive structural modeling approach [Volume 12, Number 4] | 
              
              
                | 
              
				  metaheuristic algorithms
				  A New Mathematical Formulation for Multi-product Green Capacitated Inventory Routing Problem in Perishable Products Distribution Considering Dissatisfaction of Customers [Volume 7, Number 1] | 
              
              
                | 
              
				  oil and gas exploitation centers
				  Evaluating performance of national oil and gas production facilities: A fuzzy network approach to manage undesirable outputs [Volume 13, Number 1] | 
              
              
                | 
              
				  returns to scale
				  Output-input ratio analysis and data envelopment analysis inefficient frontier [Volume 7, Number 3] |