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arXiv 2104.02784cs.LGcs.AIeess.SP
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基于Autoencoder的机电系统多变量时间序列数据表示学习

Autoencoder-based Representation Learning from Heterogeneous Multivariate Time Series Data of Mechatronic Systems

Leibniz University Hannover(莱布尼茨汉诺威大学)

Karl-Philipp Kortmann, Moritz Fehsenfeld, Mark Wielitzka

摘要:

现代机电一体化系统的传感器和控制数据通常以具有不同采样率和值范围的异构时间序列的形式获得。来自监督机器学习领域的合适的分类和回归方法已经存在用于预测任务,例如在状态监测的上下文中,但是它们的性能随着标记的训练数据的数量而强烈地缩放。它们的提供往往与人小时或额外传感器形式的高工作量有关。在本文中,我们提出了一种无监督的特征提取使用自动编码器网络,专门解决数据库的异构性,并减少了标记的训练数据的量相比,现有的方法。三个公开的数据集的机电一体化系统从不同的应用领域来验证结果。

英文摘要:

Sensor and control data of modern mechatronic systems are often available as heterogeneous time series with different sampling rates and value ranges. Suitable classification and regression methods from the field of supervised machine learning already exist for predictive tasks, for example in the context of condition monitoring, but their performance scales strongly with the number of labeled training data. Their provision is often associated with high effort in the form of person-hours or additional sensors. In this paper, we present a method for unsupervised feature extraction using autoencoder networks that specifically addresses the heterogeneous nature of the database and reduces the amount of labeled training data required compared to existing methods. Three public datasets of mechatronic systems from different application domains are used to validate the results.

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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