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• W3176466636 abstract "The quality of fault recognition part is one of the key factors affecting the efficiency of intelligent manufacturing. Many excellent achievements in deep learning (DL) have been realized recently as methods of fault recognition. However, DL models have inherent shortcomings. In particular, the phenomenon of over-fitting or degradation suggests that such an intelligent algorithm cannot fully use its feature perception ability. Researchers have mainly adapted the network architecture for fault diagnosis, but the above limitations are not taken into account. In this study, we propose a novel deep reinforcement learning method that combines the perception of DL with the decision-making ability of reinforcement learning. This method enhances the classification accuracy of the DL module to autonomously learn much more knowledge hidden in raw data. The proposed method based on the convolutional neural network (CNN) also adopts an improved actor-critic algorithm for fault recognition. The important parts in standard actor-critic algorithm, such as environment, neural network, reward, and loss functions, have been fully considered in improved actor-critic algorithm. Additionally, to fully distinguish compound faults under heavy background noise, multi-channel signals are first stacked synchronously and then input into the model in the end-to-end training mode. The diagnostic results on the compound fault of the bearing and tool in the machine tool experimental system show that compared with other methods, the proposed network structure has more accurate results. These findings demonstrate that under the guidance of the improved actor-critic algorithm and processing method for multi-channel data, the proposed method thus has stronger exploration performance." @default.
• W3176466636 created "2021-07-05" @default.
• W3176466636 creator A5020225736 @default.
• W3176466636 creator A5048701151 @default.
• W3176466636 date "2021-08-01" @default.
• W3176466636 modified "2023-10-04" @default.
• W3176466636 title "Intelligent fault recognition framework by using deep reinforcement learning with one dimension convolution and improved actor-critic algorithm" @default.
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• W3176466636 doi "https://doi.org/10.1016/j.aei.2021.101315" @default.
• W3176466636 hasPublicationYear "2021" @default.
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