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arXiv 1810.08985cs.LGstat.ML
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应用于Hard-Disks的集成特征归一化和剩余使用寿命估计的LSTM机制

Mechanisms for Integrated Feature Normalization and Remaining Useful Life Estimation Using LSTMs Applied to Hard-Disks

Vanderbilt University(范德堡大学)

Sanchita Basak, Saptarshi Sengupta, Abhishek Dubey

摘要:

随着智能社区的兴起,提高整体系统可用性正成为一个主要问题。为了提高系统中组件的可靠性,我们提出了一个推理模型来预测这些组件的剩余使用寿命(RUL)。在本文中,我们与后端数据服务器的组件,如硬盘,受到降级。深度长短期记忆(LSTM)网络被用作这个快速、数据驱动的决策框架的主干,并动态捕获传入数据的模式。在这篇文章中,我们讨论了神经网络的体系结构,并描述了选择各种超参数的机制。此外,我们描述了从高度无组织和类别不平衡的大数据中提取有效训练集所面临的挑战,并通过在线模拟集建立了大量数据预处理,特征提取和验证的在线预测方法,其中硬盘的剩余使用寿命未知。我们的算法在预测接近故障的设备的临界区附近的RUL方面表现得特别好。使用所提出的方法,我们能够预测磁盘是否会在未来十天内失败,平均精度为0.8435。我们还表明,在特定模型上训练的架构可以通过迁移学习来预测来自同一制造商的不同型号设备的RUL。

英文摘要:

With emerging smart communities, improving overall system availability is becoming a major concern. In order to improve the reliability of the components in a system we propose an inference model to predict Remaining Useful Life (RUL) of those components. In this paper we work with components of backend data servers such as hard disks, that are subject to degradation. A Deep Long-Short Term Memory (LSTM) Network is used as the backbone of this fast, data-driven decision framework and dynamically captures the pattern of the incoming data. In the article, we discuss the architecture of the neural network and describe the mechanisms to choose the various hyper-parameters. Further, we describe the challenges faced in extracting effective training sets from highly unorganized and class-imbalanced big data and establish methods for online predictions with extensive data pre-processing, feature extraction and validation through online simulation sets with unknown remaining useful lives of the hard disks. Our algorithm performs especially well in predicting RUL near the critical zone of a device approaching failure. With the proposed approach we are able to predict whether a disk is going to fail in next ten days with an average precision of 0.8435. We also show that the architecture trained on a particular model can be used to predict RUL for devices in different models from same manufacturer through transfer learning.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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