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Appl. Sci. 2018, 8(8), 1290; https://doi.org/10.3390/app8081290

Towards Enhanced Performance of Neural-Network-Based Fault Detection Using an Sequential D-Optimum Experimental Design

Faculty of Engineering Management, Poznan University of Technology, Strzelecka 11, 60-965 Poznan, Poland
Received: 1 June 2018 / Revised: 16 July 2018 / Accepted: 25 July 2018 / Published: 2 August 2018
(This article belongs to the Special Issue Fault Detection and Diagnosis in Mechatronics Systems)
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Abstract

Increasing expectations of industrial system reliability require development of more effective and robust fault diagnosis methods. The paper presents a framework for quality improvement on the neural model applied for fault detection purposes. In particular, the proposed approach starts with an adaptation of the modified quasi-outer-bounding algorithm towards non-linear neural network models. Subsequently, its convergence is proven using quadratic boundedness paradigm. The obtained algorithm is then equipped with the sequential D-optimum experimental design mechanism allowing gradual reduction of the neural model uncertainty. Finally, an emerging robust fault detection framework on the basis of the neural network uncertainty description as the adaptive thresholds is proposed. View Full-Text
Keywords: Multi-layer Perceptron; robust fault detection; experiment design; non-linear quasi OBE algorithm Multi-layer Perceptron; robust fault detection; experiment design; non-linear quasi OBE algorithm
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Mrugalska, B. Towards Enhanced Performance of Neural-Network-Based Fault Detection Using an Sequential D-Optimum Experimental Design. Appl. Sci. 2018, 8, 1290.

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