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Semi-Supervised Deep Dynamic Probabilistic Latent Variable Model for Multimode Process Soft Sensor Application
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DOI：10.1109/TII.2022.3183211.png)
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Abstract
En 中文
Nonlinear and multimode characteristics commonly appear in modern industrial process data with increasing complexity and dynamics, which have brought challenges to soft sensor modeling. To solve these issues, in this article, a dynamic mixture variational autoencoder regression model is first proposed to handle the multimode industrial process modeling with dynamic features. Furthermore, to deal with the partially labeled process data with rare quality values and large-scale unlabeled samples, a semi-supervised mixture variational autoencoder regression model is proposed, where a corresponding semi-supervised data sequence division scheme is introduced to make full use of the information in both labeled and unlabeled data. Finally, to verify the feasibility and effectiveness of the proposed methods, the models are applied to a numerical case and a methanation furnace case. The results show that the proposed methods have superior soft sensing performance, compared with the state-of-the-art methods.
Keywords:
Data models
Logic gates
Adaptation models
Soft sensors
Mathematical models
Numerical models
Informatics
Deep learning
dynamic model
mixture variational autoencoder (VAE)
multimode process modeling
semi-supervised learning
soft sensor
Journal
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9.9
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8.6K
Citations:
6.0W
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