In collaboration with Payame Noor University and Iranian Society of Instrumentation and Control Engineers
Control and Optimization
Dynamical Behaviour of Fractional Order ‎‎SEIR‎ ‎Mathematical Model for Infectious Disease Transmission

Reza Akbari; Leader Navaei; Mohammad Shahriari

Articles in Press, Accepted Manuscript, Available Online from 04 October 2023

https://doi.org/10.30473/coam.2023.64849.1210

Abstract
  This paper presents an extension of the SEIR mathematical model for infectious disease‎ ‎transmission to a fractional-order model‎. ‎The model is formulated using the Caputo derivative of order α ∈ (0, 1]‎. ‎We study the stability of equilibrium points‎, ‎including ...  Read More

Control and Optimization
Optimizing Supply Chain Design for Sustainability and Reliability‎: ‎A Comparative Study of Augmented Epsilon‎‎‎ and Normalized Normal Constraint Methods

Sajad Amirian; Maghsoud Amiri; Mohammad Taghi Taghavifard

Articles in Press, Accepted Manuscript, Available Online from 05 December 2023

https://doi.org/10.30473/coam.2023.67540.1230

Abstract
  Integrating sustainability and reliability represents a synergistic approach that can be explored through the problem of a closed-loop supply chain network design (SCND)‎. ‎This study is conducted in three stages‎: ‎mathematical modeling‎, ‎model solution using exact methods‎, ...  Read More

Control and Optimization
Discover the Maximum Descriptive User Groups on the Social Web

Zahra Abbasi; Nasser Akhoundi

Volume 4, Issue 2 , January 2019, , Pages 39-48

https://doi.org/10.30473/coam.2020.49118.1127

Abstract
  Product reviews in E-commerce websites such as restaurants‎, ‎movies‎, ‎E-commerce products‎, ‎etc.‎, ‎are essential resources for consumers to make purchasing decisions on various items‎. ‎In this paper‎, ‎we model discovering groups with maximum descriptively ...  Read More

Control and Optimization
Application of Grey System Theory in Rainfall Estimation

Davood Darvishi Salookolaei; Sifeng Liu; Parvin Babaei

Volume 2, Issue 2 , December 2017, , Pages 15-32

Abstract
  Considering the fact that Iran is situated in an arid and semi-arid region, rainfall prediction for the management of water resources is very important and necessary. Researchers have proposed various prediction methods that have been utilized in such areas as water and meteorology, especially water ...  Read More

Control and Optimization
Fuzzy Number-Valued Fuzzy Graph

Siyamak Firouzian; Mohamad Adabitabar Firozja

Volume 1, Issue 2 , October 2016, , Pages 77-86

Abstract
  Graph theory has an important role in the area of applications of networks and clustering‎. ‎In the case of dealing with uncertain data‎, ‎we must utilize ambiguous data such as fuzzy value‎, ‎fuzzy interval value or values of fuzzy number‎. ‎In this study‎, ‎values ...  Read More