An adaptive soft sensor method of D-vine copula quantile regression for complex chemical processes
An adaptive soft sensor method of D-vine copula quantile regression for complex chemical processes
复制标题
复杂化学过程的D-vine copula分位数回归自适应软测量方法
DOI:
10.1016/j.ces.2020.116210
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发表时间:
2021-02
影响因子:
4.7
通讯作者:
Shaojun Li
中科院分区:
文献类型:
--
作者:
Jianeng Ni;Shaojun Li
Non-linear and non-Gaussian properties are challenging topics in the soft sensor modeling of chemical processes, and fluctuations in the environmental conditions of chemical plants will also affect the accuracy of soft sensor models. This paper proposes an adaptive soft sensor method of D-vine copula quantile regression (aDVQR). In the modeling process, a sparse vine model is established using the Bayesian information criterion. Then, the conditional quantile function value of the specified quantile can be obtained via the recursive nesting method by thehfunction. An online model updating system based on the aDVQR model is also proposed, and an adaptive soft sensor model is established. The proposed adaptive soft sensor method can successfully approximate the non-linear and non-Gaussian relationships between variables and adapt to unstable environments. Finally, a numerical example and an example of the ethylene industry are used to verify the effectiveness of the proposed method.
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影响因子:
3.9
作者:
Yuan Xiaofeng;Chen Zhiwen;Wang Yalin
通讯作者:
Wang Yalin
DOI:
10.1109/tim.2014.2313035
发表时间:
2014-11-01
影响因子:
5.6
作者:
Li, Weilin;Monti, Antonello;Ponci, Ferdinanda
通讯作者:
Ponci, Ferdinanda
影响因子:
5.8
作者:
E. Brechmann;U. Schepsmeier
通讯作者:
E. Brechmann;U. Schepsmeier
影响因子:
1.8
作者:
Kraus, Daniel;Czado, Claudia
通讯作者:
Czado, Claudia
影响因子:
--
作者:
PARZEN, E
通讯作者:
PARZEN, E