Predictive maintenance of pumping system bearings with evolved autoencoders

Abstract

Industry 4.0 introduced the application of various remote sensing and intelligent or autonomous decision-making to the manufacturing floors. One of the most important aspects is the maintenance of the machinery and equipment preemptively so that their breakage does as minimal damage (in downtime, safety, etc.) as possible. Analyzing the machinery data with machine algorithms (especially artificial neural networks (ANN)) plays a crucial role. However, designing and training ANN algorithms is still a time-consuming and complex process with various remaining issues, including generalization, the necessity for large datasets, and high time complexity. As a result, a few decades ago, neuroevolution was developed to improve the ANN construction process. Recently, it has gained considerable attention alongside a rise in computational power. In this paper, we use the power of neuroevolution to design a specific type of ANN called an autoencoder (AE) which can be used for a particular type of task, such as anomaly detection (AD). Our proposed method, autoencoders-neat for anomaly detection (ANAD), has shown promising results. Our approach achieved a peak test accuracy of 75% in 0.4 quantiles and an AUC of 73% in AD on the predictive maintenance dataset. Our proposed method can serve as a starting point for further research.

Sašo Pavlič

PhD student in computer science & informatics

My research interests include artificial inteligence, machine learning, neural architecture search, anomaly detection, …