In collaboration with Payame Noor University and the Iranian Society of Instrumentation and Control Engineers
Control and Optimization
Efficient Solution of Nonlinear Unconstraint Optimization Problems using Quasi-Newton's Method‎: ‎A Revised Approach

Hajar Alimorad

Volume 9, Issue 1 , May 2024, , Pages 49-65

https://doi.org/10.30473/coam.2023.64138.1204

Abstract
  While many real-world optimization problems typically involve multiple constraints, unconstrained problems hold practical and fundamental significance. They can arise directly in specific applications or as transformed versions of constrained optimization problems.‎ ‎Newton's method‎, ...  Read More

Control and Optimization
A Hybrid Floyd-Warshall and Graph Coloring Algorithm for Finding the Smallest Number of Colors Needed for a Distance Coloring of Graphs

Hanifa Mosawi; Mostafa Tavakolli; Khatere Ghorbani-Moghadam

Volume 9, Issue 1 , May 2024, , Pages 185-194

https://doi.org/10.30473/coam.2023.68880.1244

Abstract
  Graph coloring is a crucial area of research in graph theory, with numerous algorithms proposed for various types of graph coloring, particularly graph p-distance coloring‎. In this study, we employ a recently introduced graph coloring algorithm to develop a hybrid algorithm approximating the chromatic ...  Read More

Control and Optimization
A New Hybrid Conjugate Gradient Method Based on Eigenvalue Analysis for Unconstrained Optimization Problems

Farzad Rahpeymaii; majid rostami

Volume 3, Issue 1 , July 2018, , Pages 27-43

https://doi.org/10.30473/coam.2019.44564.1108

Abstract
  In this paper‎, ‎two extended three-term conjugate gradient methods based on the Liu-Storey ({\tt LS})‎ ‎conjugate gradient method are presented to solve unconstrained optimization problems‎. ‎A remarkable property of the proposed methods is that the search direction always satisfies‎ ...  Read More

Control and Optimization
Two-Level Optimization Problems with Infinite Number of Convex Lower Level Constraints

Nader Kanzi

Volume 2, Issue 2 , December 2017, , Pages 33-44

Abstract
  ‎This paper proposes a new form of optimization problem which is a two-level programming problem with infinitely many lower level constraints‎. ‎Firstly‎, ‎we consider some lower level constraint qualifications (CQs) for this problem‎. ‎Then‎, ‎under these CQs‎, ...  Read More

Control and Optimization
Optimal Shape Design for a Cooling Pin Fin Connection Profil

Seyed Hamed Hashemi Mehne; Khodayar Javadi

Volume 2, Issue 2 , December 2017, , Pages 61-76

Abstract
  A shape optimization problem of cooling fins for computer parts and integrated circuits is modeled and solved in this paper. The main purpose is to determine the shape of a two-dimensional pin fin, which leads to the maximum amount of removed heat. To do this, the shape optimization problem is defined ...  Read More

Control and Optimization
Optimizing the Static and Dynamic Scheduling problem of Automated Guided Vehicles in Container Terminals

Hassan Rashidi

Volume 2, Issue 2 , December 2017, , Pages 77-101

Abstract
  The Minimum Cost Flow (MCF) problem is a well-known problem in the area of network optimisation. To tackle this problem, Network Simplex Algorithm (NSA) is the fastest solution method. NSA has three extensions, namely Network Simplex plus Algorithm (NSA+), Dynamic Network Simplex Algorithm (DNSA) and ...  Read More

Control and Optimization
A New Approach for Solving Grey Assignment Problems

Hadi Nasseri; Davood Darvishi Salokolaei; Allahbakhsh Yazdani

Volume 2, Issue 1 , April 2017, , Pages 15-28

Abstract
  Linear assignment problem is one of the most important practical models in the literature of linear programming problems‎. ‎Input data in the cost matrix of the linear assignment problem are not always crisp and sometimes in the practical situations is formulated by the grey systems theory approach‎. ...  Read More

Control and Optimization
Optimization of Energy Consumption in Image Transmission in Wireless Sensor Networks (WSNs) using a Hybrid Method

Abbas Ali Rezaee; Farnoosh Zareian

Volume 2, Issue 1 , April 2017, , Pages 29-41

Abstract
  In wireless sensor networks (WSNs)‎, ‎sensor nodes have limited resources with regard to computation‎, ‎storage‎, ‎communication bandwidth‎, ‎and the most important of all‎, ‎energy supply‎. ‎In addition‎, ‎in many applications of sensor networks‎, ...  Read More

Control and Optimization
Regularity Conditions for Non-Differentiable Infinite Programming Problems using Michel-Penot Subdifferential

Nader Kanzi

Volume 1, Issue 1 , April 2016, , Pages 21-30

Abstract
  In this paper we study optimization problems with infinite many inequality constraints on a Banach space where the objective function and the binding constraints are locally Lipschitz‎. ‎Necessary optimality conditions and regularity conditions are given‎. ‎Our approach are based on the ...  Read More

Control and Optimization
On Efficiency of Non-Monotone Adaptive Trust Region and Scaled Trust Region Methods in Solving Nonlinear Systems of Equations

Rasoul Hekmati

Volume 1, Issue 1 , April 2016, , Pages 31-40

Abstract
  In this paper we run two important methods for solving some well-known problems and make a comparison on their performance and efficiency in solving nonlinear systems of equations‎. ‎One of these methods is a non-monotone adaptive trust region strategy and another one is a scaled trust region ...  Read More

Control and Optimization
Solving Linear Semi-Infinite Programming Problems Using Recurrent Neural Networks

Alaeddin Malek; Ghasem Ahmadi; Seyyed Mehdi Mirhoseini Alizamini

Volume 1, Issue 1 , April 2016, , Pages 55-67

Abstract
  ‎Linear semi-infinite programming problem is an important class of optimization problems which deals with infinite constraints‎. ‎In this paper‎, ‎to solve this problem‎, ‎we combine a discretization method and a neural network method‎. ‎By a simple discretization ...  Read More

Control and Optimization
Solving Fully Fuzzy Linear Programming Problems with Zero-One Variables by Ranking Function

Aminalah Alba

Volume 1, Issue 1 , April 2016, , Pages 69-78

Abstract
  Jahanshahloo has suggested a method for the solving linear programming problems with zero-one variables‎. ‎In this paper we formulate fully fuzzy linear programming problems with zero-one variables and a method for solving these problems is presented using the ranking function and also the branch ...  Read More