English

Semi-supervised Learning for Data-driven Soft-sensing of Biological and Chemical Processes

Systems and Control 2021-07-30 v1 Machine Learning Systems and Control

Abstract

Continuously operated (bio-)chemical processes increasingly suffer from external disturbances, such as feed fluctuations or changes in market conditions. Product quality often hinges on control of rarely measured concentrations, which are expensive to measure. Semi-supervised regression is a possible building block and method from machine learning to construct soft-sensors for such infrequently measured states. Using two case studies, i.e., the Williams-Otto process and a bioethanol production process, semi-supervised regression is compared against standard regression to evaluate its merits and its possible scope of application for process control in the (bio-)chemical industry.

Keywords

Cite

@article{arxiv.2107.13822,
  title  = {Semi-supervised Learning for Data-driven Soft-sensing of Biological and Chemical Processes},
  author = {Erik Esche and Torben Talis and Joris Weigert and Gerardo Brand-Rihm and Byungjun You and Christian Hoffmann and Jens-Uwe Repke},
  journal= {arXiv preprint arXiv:2107.13822},
  year   = {2021}
}

Comments

32 pages, 11 figures

R2 v1 2026-06-24T04:38:02.810Z