Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing Cycles

Industrial data scarcity is one of the largest factors holding back the widespread use of machine learning in manufacturing. To overcome this problem, the concept of transfer learning was developed and has received much attention in recent industrial research. This paper focuses on the problem of ti...

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Main Authors: Stefan Gaugel, Manfred Reichert
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/7/3636
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author Stefan Gaugel
Manfred Reichert
author_facet Stefan Gaugel
Manfred Reichert
author_sort Stefan Gaugel
collection DOAJ
description Industrial data scarcity is one of the largest factors holding back the widespread use of machine learning in manufacturing. To overcome this problem, the concept of transfer learning was developed and has received much attention in recent industrial research. This paper focuses on the problem of time series segmentation and presents the first in-depth research on transfer learning for deep learning-based time series segmentation on the industrial use case of end-of-line pump testing. In particular, we investigate whether the performance of deep learning models can be increased by pretraining the network with data from other domains. Three different scenarios are analyzed: source and target data being closely related, source and target data being distantly related, and source and target data being non-related. The results demonstrate that transfer learning can enhance the performance of time series segmentation models with respect to accuracy and training speed. The benefit can be most clearly seen in scenarios where source and training data are closely related and the number of target training data samples is lowest. However, in the scenario of non-related datasets, cases of negative transfer learning were observed as well. Thus, the research emphasizes the potential, but also the challenges, of industrial transfer learning.
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spelling doaj.art-c68cbd1b1c7941fdad06741dcafae39c2023-11-17T17:35:28ZengMDPI AGSensors1424-82202023-03-01237363610.3390/s23073636Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing CyclesStefan Gaugel0Manfred Reichert1Bosch Rexroth AG, 89081 Ulm, GermanyInstitute of Databases and Information Systems, Ulm University, 89081 Ulm, GermanyIndustrial data scarcity is one of the largest factors holding back the widespread use of machine learning in manufacturing. To overcome this problem, the concept of transfer learning was developed and has received much attention in recent industrial research. This paper focuses on the problem of time series segmentation and presents the first in-depth research on transfer learning for deep learning-based time series segmentation on the industrial use case of end-of-line pump testing. In particular, we investigate whether the performance of deep learning models can be increased by pretraining the network with data from other domains. Three different scenarios are analyzed: source and target data being closely related, source and target data being distantly related, and source and target data being non-related. The results demonstrate that transfer learning can enhance the performance of time series segmentation models with respect to accuracy and training speed. The benefit can be most clearly seen in scenarios where source and training data are closely related and the number of target training data samples is lowest. However, in the scenario of non-related datasets, cases of negative transfer learning were observed as well. Thus, the research emphasizes the potential, but also the challenges, of industrial transfer learning.https://www.mdpi.com/1424-8220/23/7/3636time series segmentationdeep learningmultivariate time seriestransfer learningend-of-line testing
spellingShingle Stefan Gaugel
Manfred Reichert
Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing Cycles
Sensors
time series segmentation
deep learning
multivariate time series
transfer learning
end-of-line testing
title Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing Cycles
title_full Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing Cycles
title_fullStr Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing Cycles
title_full_unstemmed Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing Cycles
title_short Industrial Transfer Learning for Multivariate Time Series Segmentation: A Case Study on Hydraulic Pump Testing Cycles
title_sort industrial transfer learning for multivariate time series segmentation a case study on hydraulic pump testing cycles
topic time series segmentation
deep learning
multivariate time series
transfer learning
end-of-line testing
url https://www.mdpi.com/1424-8220/23/7/3636
work_keys_str_mv AT stefangaugel industrialtransferlearningformultivariatetimeseriessegmentationacasestudyonhydraulicpumptestingcycles
AT manfredreichert industrialtransferlearningformultivariatetimeseriessegmentationacasestudyonhydraulicpumptestingcycles