In collaboration with Payame Noor University and the Iranian Society of Instrumentation and Control Engineers
Control and Optimization
An Enhanced QAOM-Based MAGDM Framework: ‎Integrating Entropy Weighting and Expert Judgment Aggregation

Ali Dehghani Filabadi; Hossein Nahid Titkanlue

Articles in Press, Accepted Manuscript, Available Online from 13 June 2025

https://doi.org/10.30473/coam.2025.73429.1283

Abstract
  Addressing complex decision-making scenarios‎, ‎particularly those involving multiple criteria and expert perspectives‎, ‎often requires robust frameworks capable of managing uncertainty and qualitative assessments‎. ‎The Qualitative Absolute Order-of-Magnitude (QAOM) model offers ...  Read More

Control and Optimization
Solution Techniques for Fuzzy Graph Partitioning Based on Heuristic Optimization

Mohammad Alsaeedi; Mostafa Tavakolli; Ahmad Abouyee; Khatere Ghorbani Moghadam; Reza Ghanbari

Articles in Press, Accepted Manuscript, Available Online from 27 June 2025

https://doi.org/10.30473/coam.2025.74009.1296

Abstract
  In this study‎, ‎we proposed a novel graph partitioning problem where the edges are characterized by trapezoidal fuzzy numbers‎. ‎A linear ranking function is employed to establish an order among these fuzzy numbers‎. ‎We derive the necessary conditions for the existence of an ...  Read More

Control and Optimization
Optimal Control of Linear Singularly Perturbed Systems via Eigenvalue Assignment

Mehrnoosh Salehi Chegeni; Majid Yarahmadi

Volume 10, Issue 1 , June 2025, , Pages 1-17

https://doi.org/10.30473/coam.2025.73999.1294

Abstract
  Optimal control of certain singularly perturbed systems‎, ‎with slow and fast dynamics‎, ‎presents notable challenges, including ill-conditioning‎, ‎high dimensionality‎, ‎and ill-posed algebraic Riccati equations‎. ‎In this paper‎, ‎ we introduce a novel ...  Read More

Control and Optimization
Analyzing Drug Therapy on the Interaction Between Tumor and Immune Cells Based on Optimal Fractional Control Theory

Alireza Fakharzadeh Jahromi‎; Mahin Azizi Karachi; Hajar Alimorad

Volume 10, Issue 1 , June 2025, , Pages 19-31

https://doi.org/10.30473/coam.2025.72347.1263

Abstract
  Cancer is a class of diseases characterized by uncontrolled cell growth that affects immune cells‎. ‎There are several treatment options available‎, ‎including surgery‎, ‎chemotherapy‎, ‎hormonal therapy‎, ‎radiation therapy‎, ‎targeted therapy‎, ‎and ...  Read More

Control and Optimization
Mathematical Modelling of Malaria Spread in Response to Climate Variability in Sudan

Gassan A.M.O. Farah; Abdulaziz Mukhtar; Kailash C. Patidar

Volume 10, Issue 1 , June 2025, , Pages 33-55

https://doi.org/10.30473/coam.2025.73788.1292

Abstract
  Malaria continues to represent a significant public health concern in Sudan‎, ‎with cases rising over 40% from 2015 to 2020‎. ‎This research investigates how climate change affects malaria transmission patterns using a mathematical model in an ordinary differential equation framework‎. ...  Read More

Control and Optimization
Resource Allocation Optimization for Multi-Target Detection and Tracking in Cognitive Radar Networks

Maryam Najimi; Akbar Hashemi Borzabadi

Volume 10, Issue 1 , June 2025, , Pages 57-71

https://doi.org/10.30473/coam.2025.72829.1272

Abstract
  This paper addresses the challenges of power control‎, ‎radar assignment, and signal timing to improve the detection and‎ ‎tracking of multiple targets within a mono-static cognitive‎ ‎radar network‎. ‎A fusion center is utilized to integrate target‎ ‎velocity ...  Read More

Control and Optimization
Hybrid of Convolutional Neural Network and Support Vector Machine for Cancer Type Prediction

Soghra Mikaeyl Nejad

Volume 10, Issue 1 , June 2025, , Pages 73-89

https://doi.org/10.30473/coam.2025.72710.1269

Abstract
  Gene expression signatures‎ reflect the response of cell tissues to diseases‎, ‎genetic disorders‎, ‎and drug treatments‎, ‎ containing hidden patterns that can provide valuable insights for biological research and cancer diagnostics‎. ‎This study‎proposes a hybrid ...  Read More

Control and Optimization
Multi-Objective Optimization Problem Involving Max-Product Fuzzy Relation Inequalities with Application in Wireless Communication

Narjes Amiri; Hadi Nasseri; Davood Darvishi Salokolaei

Volume 10, Issue 1 , June 2025, , Pages 91-107

https://doi.org/10.30473/coam.2025.72543.1270

Abstract
  This paper explores a specific category of optimization management models tailored for wireless communication systems‎. ‎To enhance the efficiency of managing these systems‎, ‎we introduce a fuzzy relation multi-objective programming approach‎. ‎We define the concept of a feasible ...  Read More

Control and Optimization
Bell's Degree Variance and Degree Deviation in Graphs: Analyzing Optimal Graphs Based on These Irregularity Measures

Mohsen Sayadi; Hasan Barzegar; Saeid Alikhani; Nima Ghanbari

Volume 10, Issue 1 , June 2025, , Pages 109-123

https://doi.org/10.30473/coam.2025.73746.1288

Abstract
  An irregularity measure (IM) of a connected graph $G$ is defined as a non-negative graph invariant that satisfies the condition‎ ‎$IM(G) = 0$ if and only if $G$ is a regular graph‎. ‎Among the prominent degree-based irregularity measures‎ ‎are Bell's degree variance, denoted as ...  Read More

Control and Optimization
A Hybrid Numerical Approach for Solving Nonlinear Optimal Control Problems

Rasoul Hatamian; Seyed Amjad Samareh Hashemi

Volume 10, Issue 1 , June 2025, , Pages 125-138

https://doi.org/10.30473/coam.2025.72875.1273

Abstract
  This paper presents an iterative computational method for addressing constrained nonlinear optimal control problems‎, ‎specifically those involving terminal state‎, ‎state saturation‎, ‎and control saturation constraints‎. ‎The proposed approach reformulates the original ...  Read More

Control and Optimization
A Meshless Method for Optimal Control of Parabolic PDEs Using Rational Radial Basis Functions

Afrah Kadhim Saud Al-tameemi; Mahmoud Mahmoudi; Majid Darehmiraki

Volume 10, Issue 1 , June 2025, , Pages 139-161

https://doi.org/10.30473/coam.2025.73126.1277

Abstract
  This study introduces an innovative approach for addressing optimal control problems related to parabolic partial differential equations (PDEs) through the application of rational radial basis functions (RBFs). Parabolic PDEs, which are instrumental in modeling time-dependent processes such as heat transfer ...  Read More

Control and Optimization
Determining Control Points in the Project Life Cycle‎: ‎A Heuristic Approach Utilizing Tabu Search

Narjes Sabeghi

Volume 10, Issue 1 , June 2025, , Pages 163-173

https://doi.org/10.30473/coam.2025.73812.1290

Abstract
  A critical aspect of successful project management is ensuring that execution aligns with the baseline schedule‎. ‎However‎, ‎traditional project control methods often struggle to effectively address the uncertainties and deviations that can arise during project execution‎, ‎leading ...  Read More

Control and Optimization
Pythagorean Fuzzy Sets for Credit Risk Assessment‎: ‎A Novel Approach to Predicting Loan Default

Amal Kumar Adak; Nil Kamal

Volume 10, Issue 1 , June 2025, , Pages 175-191

https://doi.org/10.30473/coam.2025.73505.1287

Abstract
  The incorporation of Pythagorean fuzzy sets into credit risk assessment represents a relatively innovative approach for predicting loan defaults‎, ‎ offering a more precise and adaptable tool for financial institutions‎. ‎ Key customer information—such as credit history‎, ‎credit ...  Read More

Control and Optimization
Mesh-Free RBF-FD Method with Polyharmonic Splines and Polynomials for High-Dimensional PDEs and Financial Option Pricing

Narges Hosseinzadeh; Elyas Shivanian; Saeid Abbasbandy

Volume 10, Issue 1 , June 2025, , Pages 193-215

https://doi.org/10.30473/coam.2025.73348.1281

Abstract
  This study employs the radial basis function-generated finite difference (RBF-FD) method to address high-dimensional elliptic differential equations under Dirichlet boundary conditions‎. ‎The method utilizes polyharmonic spline functions (PHSs) combined with polynomials for approximation‎. ...  Read More

Control and Optimization
A Sub-Ordinary Approach to Achieve Near-Exact Solutions for a Class of Optimal Control Problems

Akbar Hashemi Borzabadi; Mohammad Gholami Baladezaei; Morteza Ghachpazan

Volume 9, Issue 2 , December 2024, , Pages 1-19

https://doi.org/10.30473/coam.2024.70834.1254

Abstract
  This paper explores the advantages of Sub-ODE strategy in deriving near-exact‎ ‎solutions for a class of linear and nonlinear optimal control‎ ‎problems (OCPs) that can be transformed into nonlinear‎ ‎partial differential equations (PDEs). Recognizing that converting an OCP into ...  Read More

Control and Optimization
A Multi-Objective Model for Humanitarian Logistics Model During an Earthquake Crisis‎: ‎A Case Study of Iran

Maryam Yaghoubi; Fatemeh Dadmand

Volume 9, Issue 2 , December 2024, , Pages 21-41

https://doi.org/10.30473/coam.2024.68031.1238

Abstract
  Natural disasters‎, ‎such as earthquakes‎, ‎result in significant financial and human losses‎. ‎Rescue operations play a crucial role in managing such crises‎. ‎However‎, ‎the lack of precise information and the damage or destruction of urban transportation routes ...  Read More

Control and Optimization
New Soliton Solutions to the Coupled Conformable Time-Fractional Boussinesq Equation

Ahmad Sharif

Volume 9, Issue 2 , December 2024, , Pages 43-51

https://doi.org/10.30473/coam.2024.71509.1256

Abstract
  In this study‎, ‎we explore soliton solutions for the conformable time-fractional Boussinesq equation utilizing the three-wave method‎. ‎To validate the precision of our findings‎, ‎we discuss specific special cases by adjusting certain potential parameters and also present the ...  Read More

Control and Optimization
On Constraint Qualifications and Optimality Conditions in‎ ‎Nonsmooth Semi-infinite Optimization

Atefeh Hassani Bafrani

Volume 9, Issue 2 , December 2024, , Pages 53-66

https://doi.org/10.30473/coam.2024.69322.1247

Abstract
  The primary objective of this paper is to enhance several well-known geometric constraint qualifications and necessary optimality conditions for nonsmooth semi-infinite optimization problems (SIPs). We focus on defining novel algebraic Mangasarian-Fromovitz type constraint qualifications, and on presenting ...  Read More

Control and Optimization
Impact of Carrier Relaxation Time on the Performance of Quantum Dot Laser with Planar Cavities ‎Using ‎Artificial ‎Neural ‎Networks

Seyed Mohsen Izadyar; Mohammad Eshaghnezhad; Hossein Davoodi Yeganeh

Volume 9, Issue 2 , December 2024, , Pages 67-83

https://doi.org/10.30473/coam.2024.70032.1250

Abstract
  This study presents a model of ‎a quantum dot laser with a planar cavity, employing numerical methods and artificial neural networks for simulation purposes. The investigation focuses on the influence of critical parameters, including the injection current into the active layer of the quantum dot ...  Read More

Control and Optimization
Mordukhovich Normal Cone of Optimization Problems with Switching Constraints

Sharifeh Rezagholi; Arash Farhadi Hikooee‎

Volume 9, Issue 2 , December 2024, , Pages 85-96

https://doi.org/10.30473/coam.2024.70234.1251

Abstract
  This paper examines normal cones of the feasible set for mathematical programming problems with switching constraints (MPSC)‎. ‎Functions involved are assumed to be continuously differentiable‎. ‎The primary focus is on providing the upper estimate of the Mordukhovich normal cone for ...  Read More

Control and Optimization
A New Approach to Control of Legged Robots

Majid Anjidani

Volume 9, Issue 2 , December 2024, , Pages 97-121

https://doi.org/10.30473/coam.2024.71425.1255

Abstract
  Designing dynamically stable controllers for a robot with 2r legs is challenging due to its complex hybrid dynamics (r>1). This paper proposes a technique to decompose the robot into r biped robots, where the influence of other robot parts on each biped can be modeled as external forces. This approach ...  Read More

Control and Optimization
Optimal Adaptive Sliding Mode Control for a Class of Nonlinear Affine Systems

Masoomeh Ebrahimipour; Saeed Nezhadhosein‎; Seyed Mehdi Mirhosseini-Alizamini

Volume 9, Issue 2 , December 2024, , Pages 123-138

https://doi.org/10.30473/coam.2023.67868.1236

Abstract
  This paper presents an optimal robust adaptive technique for controlling a certain class of uncertain nonlinear affine systems‎. ‎The proposed approach combines sliding mode control‎, ‎a linear quadratic regulator for optimality, and gradient descent as an adaptive controller‎. ‎ ...  Read More

Control and Optimization
Optimizing Banking Network Resilience to Exchange Rate Shocks

Hadi Adib; Akbar Mirzapour Babajan; Beitollah Akbari Moghaddam; Roozbeh Balounejad Nouri

Volume 9, Issue 2 , December 2024, , Pages 139-158

https://doi.org/10.30473/coam.2024.72329.1262

Abstract
  This paper explores the resilience optimization of Iran's banking sector in the face of exchange rate shocks---critical macroeconomic disturbances with extensive consequences‎. ‎We develop a multi-sector macro-dynamic stochastic general equilibrium model encompassing essential economic components‎, ...  Read More

Control and Optimization
Abadie Type Constraint Qualifications and Optimality Conditions for Nonsmooth Multi-Objective Semi-Infinite Problems

Ahmad Rezaee

Volume 9, Issue 2 , December 2024, , Pages 173-186

https://doi.org/10.30473/coam.2024.72301.1261

Abstract
  This paper introduces several Abadie-type constraint qualifications and derives necessary optimality conditions in the Karush-Kuhn-Tucker‎ ‎for both weakly efficient solutions and efficient solutions of a nonsmooth multi-objective semi-infinite programming problem characterized by locally Lipschitz ...  Read More

Control and Optimization
An Adaptive Time-Stepping Algorithm to Solve a Stochastic Lotka-Volterra Competition System with Time-Variable Delays

Ali Valinejad; Afshin Babaei; Zahra Zarei

Volume 9, Issue 2 , December 2024, , Pages 187-199

https://doi.org/10.30473/coam.2024.67940.1237

Abstract
  ‎This paper introduces ‎a variable step size strategy for a stochastic time-delays Lotka-Volterra competition system‎. ‎This adaptive strategy utilizes the Milstein method for numerical solutions. It employs two local error estimates, corresponding to the diffusion and drift components ...  Read More