SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2019, Vol. 27 ›› Issue (11): 2749-2758.DOI: 10.1016/j.cjche.2019.02.018

• Process Systems Engineering and Process Safety • 上一篇    下一篇

Active training sample selection and updating strategy for near-infrared model with an industrial application

Kaixun He1, Kai Wang2, Yayun Yan1   

  1. 1 College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China;
    2 Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
  • 收稿日期:2018-10-13 修回日期:2019-02-18 出版日期:2019-11-28 发布日期:2020-01-19
  • 通讯作者: Kaixun He
  • 基金资助:
    Supported by the National Natural Science Foundation of China (61803234, 61751307), the Natural Science Foundation of Shandong Province, China (ZR2017BF026), China Postdoctoral Science Foundation (2018M632691), Research Fund for the Taishan Scholar Project of Shandong Province of China

Active training sample selection and updating strategy for near-infrared model with an industrial application

Kaixun He1, Kai Wang2, Yayun Yan1   

  1. 1 College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China;
    2 Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
  • Received:2018-10-13 Revised:2019-02-18 Online:2019-11-28 Published:2020-01-19
  • Contact: Kaixun He
  • Supported by:
    Supported by the National Natural Science Foundation of China (61803234, 61751307), the Natural Science Foundation of Shandong Province, China (ZR2017BF026), China Postdoctoral Science Foundation (2018M632691), Research Fund for the Taishan Scholar Project of Shandong Province of China

摘要: Training sample selection is widely accepted as an important step in developing a near-infrared (NIR) spectroscopic model. For industrial applications, the initial training dataset is usually selected empirically. This process is time-consuming, and updating the structure of the modeling dataset online is difficult. Considering the static structure of the modeling dataset, the performance of the established NIR model could be degraded in the online process. To cope with this issue, an active training sample selection and updating strategy is proposed in this work. The advantage of the proposed approach is that it can select suitable modeling samples automatically according to the process information. Moreover, it can adjust model coefficients in a timely manner and avoid arbitrary updating effectively. The effectiveness of the proposed method is validated by applying the method to an industrial gasoline blending process.

关键词: Near-infrared spectroscopy, Chemical processes, Process systems, Soft sensor, Gasoline blending

Abstract: Training sample selection is widely accepted as an important step in developing a near-infrared (NIR) spectroscopic model. For industrial applications, the initial training dataset is usually selected empirically. This process is time-consuming, and updating the structure of the modeling dataset online is difficult. Considering the static structure of the modeling dataset, the performance of the established NIR model could be degraded in the online process. To cope with this issue, an active training sample selection and updating strategy is proposed in this work. The advantage of the proposed approach is that it can select suitable modeling samples automatically according to the process information. Moreover, it can adjust model coefficients in a timely manner and avoid arbitrary updating effectively. The effectiveness of the proposed method is validated by applying the method to an industrial gasoline blending process.

Key words: Near-infrared spectroscopy, Chemical processes, Process systems, Soft sensor, Gasoline blending