Deep Learning-Based Feature Representation and Its Application for Soft Sensor Modeling With Variable-Wise Weighted SAE

In modern industrial processes, soft sensors have played an important role for effective process control, optimization, and monitoring. Feature representation is one of the core factors to construct accurate soft sensors. Recently, deep learning techniques have been developed for high-level abstract...

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Vydáno v:IEEE transactions on industrial informatics Ročník 14; číslo 7; s. 3235 - 3243
Hlavní autoři: Yuan, Xiaofeng, Huang, Biao, Wang, Yalin, Yang, Chunhua, Gui, Weihua
Médium: Journal Article
Jazyk:angličtina
Vydáno: Piscataway IEEE 01.07.2018
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Correlation analysis
Data mining
Deep learning
Feature extraction
Feature recognition
Industrial applications
Informatics
Machine learning
Monitoring
Multilayers
Neural networks
output prediction
Pattern recognition
Process control
Representations
Sensors
soft sensor
stacked autoencoder (SAE)
Training
variable-wise weighted SAE (VW-SAE)
ISSN:1551-3203, 1941-0050
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Shrnutí:In modern industrial processes, soft sensors have played an important role for effective process control, optimization, and monitoring. Feature representation is one of the core factors to construct accurate soft sensors. Recently, deep learning techniques have been developed for high-level abstract feature extraction in pattern recognition areas, which also have great potential for soft sensing applications. Hence, deep stacked autoencoder (SAE) is introduced for soft sensor in this paper. As for output prediction purpose, traditional deep learning algorithms cannot extract high-level output-related features. Thus, a novel variable-wise weighted stacked autoencoder (VW-SAE) is proposed for hierarchical output-related feature representation layer by layer. By correlation analysis with the output variable, important variables are identified from other ones in the input layer of each autoencoder. The variables are assigned with different weights accordingly. Then, variable-wise weighted autoencoders are designed and stacked to form deep networks. An industrial application shows that the proposed VW-SAE can give better prediction performance than the traditional multilayer neural networks and SAE.
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content type line 14
ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2018.2809730