Dynamical nonlinear systems modeling and identifying using a self-organized NFS

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TABATABAEE HAMID; Rikhtegar Mashhad Shirin

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Journal: DECISIONS AND OPERATIONS RESEARCH Year:2019 | Volume:4 | Issue:1 Page(s): 10-32

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Information Journal Paper

Title

Dynamical nonlinear systems modeling and identifying using a self-organized NFS

Author(s)

TABATABAEE HAMID | Rikhtegar Mashhad Shirin | Issue Writer Certificate

Keywords

Nonlinear system identification

Online self-organizing learning

Takagi-sugeno fuzzy reasoning

noise

Abstract

Nonlinear dynamical systems modeling is one of the real challenges of the real world due to the nonlinear and variable nature of time. In this paperAn Online Self-organizing Takagi-SugenoNeuro-Fuzzy System(OSO-NFS) for dynamic Nonlinear system identification is proposed. OSO-NFS is built based on radial basis function(RBF). The algorithm has the ability to adaptive adjustment of system’ s parameter and continuous evolution of the system’ s structure. Structure identification and parameters estimation are performed simultaneously. The OSO-NFS starts with no hidden neuron. In structural learning, the proposed OSO-NFS uses two-step algorithm to create the suitable number of rules. A pruning algorithm is used for detecting inactive hidden units and removing them as learning progresses. The weighted recursive least square (WRLS) algorithm is used to adjust all the consequent parameters. Finally, two benchmark examples of Nonlinear system identification are demonstrated to show the effectiveness of the proposed method, comparing with the other methods. The accuracy of this modeling has been compared with the other methods according to two criteria of the number of neurons (rules) and the root mean square error. According to the results, the average percentage of improvement of the answers in the number of rules obtained in comparison to the chosen method in the modeling of these two systems in both the noise and non-noise modes in the first example is 42. 35% and in the second example is 29%.

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APA: Copy

TABATABAEE, HAMID, & Rikhtegar Mashhad, Shirin. (2019). Dynamical nonlinear systems modeling and identifying using a self-organized NFS. DECISIONS AND OPERATIONS RESEARCH, 4(1 ), 10-32. SID. https://sid.ir/paper/268856/en

Vancouver: Copy

TABATABAEE HAMID, Rikhtegar Mashhad Shirin. Dynamical nonlinear systems modeling and identifying using a self-organized NFS. DECISIONS AND OPERATIONS RESEARCH[Internet]. 2019;4(1 ):10-32. Available from: https://sid.ir/paper/268856/en

IEEE: Copy

HAMID TABATABAEE, and Shirin Rikhtegar Mashhad, “Dynamical nonlinear systems modeling and identifying using a self-organized NFS,” DECISIONS AND OPERATIONS RESEARCH, vol. 4, no. 1 , pp. 10–32, 2019, [Online]. Available: https://sid.ir/paper/268856/en

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