An agile FCM for real-time modeling of dynamic and real-life systems

Fuzzy cognitive map (FCM) is a well-established model of control and decision making based on neural network and fuzzy logic methodologies. It also serves as a powerful systematic way for analyzing real-life problems where tens of known, partially known, and even unknown factors contribute to comple...

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Main Authors: Motlagh, Omid Reza Esmaeili, Jamaludin, Zamberi, Tang, Sai Hong, Khaksar, Weria
Format: Article
Language:English
Published: Springer 2015
Online Access:http://psasir.upm.edu.my/id/eprint/43699/1/An%20agile%20FCM%20for%20real-time%20modeling%20of%20dynamic%20and%20real-life%20systems.pdf
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author Motlagh, Omid Reza Esmaeili
Jamaludin, Zamberi
Tang, Sai Hong
Khaksar, Weria
author_facet Motlagh, Omid Reza Esmaeili
Jamaludin, Zamberi
Tang, Sai Hong
Khaksar, Weria
author_sort Motlagh, Omid Reza Esmaeili
collection UPM
description Fuzzy cognitive map (FCM) is a well-established model of control and decision making based on neural network and fuzzy logic methodologies. It also serves as a powerful systematic way for analyzing real-life problems where tens of known, partially known, and even unknown factors contribute to complexity of a system. FCM-based inference requires a neural activation function much like other neural network systems. In modeling, in addition to an activation function, FCM involves with weight training to learn about relationships as they exist among contributing factors. Therefore, numerous contributing factors could be analyzed to understand the behaviors of factors within a real-life system and to represent it in form of tangible matrices of weights. This article discusses a new incremental FCM activation function, named cumulative activation, and introduces a new weight training technique using simulated annealing (SA) known as agile FCM. Smooth variation of FCM nodes that is due to cumulative nature of inference results into faster convergence, while a unique minimum cost solution is guaranteed using the SA training module that is entirely expert-independent. A combination of these two techniques suits time-related applications where inclusion of temporal features is necessary. The resulted system is examined through numerical example datasets where the candidate FCM shows sensitivity to dynamic variables over time. A real-life example case is included as well to further support the effectiveness of the developed FCM in modeling of natural and complex systems.
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spelling upm.eprints-436992016-08-08T08:53:28Z http://psasir.upm.edu.my/id/eprint/43699/ An agile FCM for real-time modeling of dynamic and real-life systems Motlagh, Omid Reza Esmaeili Jamaludin, Zamberi Tang, Sai Hong Khaksar, Weria Fuzzy cognitive map (FCM) is a well-established model of control and decision making based on neural network and fuzzy logic methodologies. It also serves as a powerful systematic way for analyzing real-life problems where tens of known, partially known, and even unknown factors contribute to complexity of a system. FCM-based inference requires a neural activation function much like other neural network systems. In modeling, in addition to an activation function, FCM involves with weight training to learn about relationships as they exist among contributing factors. Therefore, numerous contributing factors could be analyzed to understand the behaviors of factors within a real-life system and to represent it in form of tangible matrices of weights. This article discusses a new incremental FCM activation function, named cumulative activation, and introduces a new weight training technique using simulated annealing (SA) known as agile FCM. Smooth variation of FCM nodes that is due to cumulative nature of inference results into faster convergence, while a unique minimum cost solution is guaranteed using the SA training module that is entirely expert-independent. A combination of these two techniques suits time-related applications where inclusion of temporal features is necessary. The resulted system is examined through numerical example datasets where the candidate FCM shows sensitivity to dynamic variables over time. A real-life example case is included as well to further support the effectiveness of the developed FCM in modeling of natural and complex systems. Springer 2015 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/43699/1/An%20agile%20FCM%20for%20real-time%20modeling%20of%20dynamic%20and%20real-life%20systems.pdf Motlagh, Omid Reza Esmaeili and Jamaludin, Zamberi and Tang, Sai Hong and Khaksar, Weria (2015) An agile FCM for real-time modeling of dynamic and real-life systems. Evolving systems, 6 (3). pp. 153-165. ISSN 1868-6478; ESSN: 1868-6486 http://link.springer.com/article/10.1007/s12530-013-9077-6 10.1007/s12530-013-9077-6
spellingShingle Motlagh, Omid Reza Esmaeili
Jamaludin, Zamberi
Tang, Sai Hong
Khaksar, Weria
An agile FCM for real-time modeling of dynamic and real-life systems
title An agile FCM for real-time modeling of dynamic and real-life systems
title_full An agile FCM for real-time modeling of dynamic and real-life systems
title_fullStr An agile FCM for real-time modeling of dynamic and real-life systems
title_full_unstemmed An agile FCM for real-time modeling of dynamic and real-life systems
title_short An agile FCM for real-time modeling of dynamic and real-life systems
title_sort agile fcm for real time modeling of dynamic and real life systems
url http://psasir.upm.edu.my/id/eprint/43699/1/An%20agile%20FCM%20for%20real-time%20modeling%20of%20dynamic%20and%20real-life%20systems.pdf
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