Unknown Health States Recognition With Collective Decision Based Deep Learning Networks In Predictive Maintenance Applications

• URL: http://arxiv.org/abs/2310.17670v1
• Date: Wed, 25 Oct 2023 08:24:48 GMT
• Title: Unknown Health States Recognition With Collective Decision Based Deep Learning Networks In Predictive Maintenance Applications
• Authors: Chuyue Lou and M. Amine Atoui
• Abstract summary: This paper proposes a collective decision framework for different CNNs. It is based on a One-vs-Rest network (OVRN) to simultaneously achieve classification of known and unknown health states. OVRN learn state-specific discriminative features and enhance the ability to reject new abnormal samples incorporated to different CNNs.
• Score: 1.0515439489916734
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: At present, decision making solutions developed based on deep learning (DL) models have received extensive attention in predictive maintenance (PM) applications along with the rapid improvement of computing power. Relying on the superior properties of shared weights and spatial pooling, Convolutional Neural Network (CNN) can learn effective representations of health states from industrial data. Many developed CNN-based schemes, such as advanced CNNs that introduce residual learning and multi-scale learning, have shown good performance in health state recognition tasks under the assumption that all the classes are known. However, these schemes have no ability to deal with new abnormal samples that belong to state classes not part of the training set. In this paper, a collective decision framework for different CNNs is proposed. It is based on a One-vs-Rest network (OVRN) to simultaneously achieve classification of known and unknown health states. OVRN learn state-specific discriminative features and enhance the ability to reject new abnormal samples incorporated to different CNNs. According to the validation results on the public dataset of Tennessee Eastman Process (TEP), the proposed CNN-based decision schemes incorporating OVRN have outstanding recognition ability for samples of unknown heath states, while maintaining satisfactory accuracy on known states. The results show that the new DL framework outperforms conventional CNNs, and the one based on residual and multi-scale learning has the best overall performance.

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