论文标题

使用深厚的增强学习对结构化数据的生存分析

Survival Analysis on Structured Data using Deep Reinforcement Learning

论文作者

G, Renith, Warrier, Harikrishna, Gupta, Yogesh

论文摘要

生存分析通过根据输入数据分析任何不需要的事件的发生在制造业中发挥了重要作用。预测维护是生存分析的一部分,有助于根据来自不同传感器或任何设备的当前传入数据来找到任何设备故障。深度学习技术被用来在某种程度上自动化预测维护问题,但是它们在预测算法尚未学到的输入数据的设备故障方面并不是很有帮助。由于神经网络基于以前的学习输入功能来预测输出,因此当输入功能有更多变化时,它不能很好地表现。该模型的性能会随着输入数据的变化的出现而降低,最后该算法在预测设备故障时失败了。可以通过我们提出的方法来解决此问题,在该方法中,算法可以比现有的深度学习算法更精确地预测设备故障。所提出的解决方案涉及实施称为Double Deep Q网络(DDQN)的深钢筋学习算法,以根据输入功能对设备故障进行分类。该算法能够学习输入功能的不同变化,并且在预测设备是否基于输入数据的情况下会发生故障。提出的DDQN模型经过有限或更少的输入数据训练。受过训练的模型与其他深度学习和机器学习模型相比,有效地预测了更多的测试数据,并且表现良好。

Survival analysis is playing a major role in manufacturing sector by analyzing occurrence of any unwanted event based on the input data. Predictive maintenance, which is a part of survival analysis, helps to find any device failure based on the current incoming data from different sensor or any equipment. Deep learning techniques were used to automate the predictive maintenance problem to some extent, but they are not very helpful in predicting the device failure for the input data which the algorithm had not learned. Since neural network predicts the output based on previous learned input features, it cannot perform well when there is more variation in input features. Performance of the model is degraded with the occurrence of changes in input data and finally the algorithm fails in predicting the device failure. This problem can be solved by our proposed method where the algorithm can predict the device failure more precisely than the existing deep learning algorithms. The proposed solution involves implementation of Deep Reinforcement Learning algorithm called Double Deep Q Network (DDQN) for classifying the device failure based on the input features. The algorithm is capable of learning different variation of the input feature and is robust in predicting whether the device will fail or not based on the input data. The proposed DDQN model is trained with limited or lesser amount of input data. The trained model predicted larger amount of test data efficiently and performed well compared to other deep learning and machine learning models.

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