Soft Sensor Model Based on Improved Elman Neural Network with Variable Data Preprocessing and Its Application

Table 2

Performance comparison results of prediction temperature under different soft sensor models.

Soft sensor model	RMSE	MNE	MPE
Elman NN	3.0496	−4.582	5.697
SVM	2.1471	−4.332	3.719
Improved Elman NN	1.3003	−3.535	3.061
Improved Elman NN with variable data preprocessing	0.5450	−1.275	1.941