[Retracted] Automatic Evaluation Method of Oral English Based on Multiplex Mode

Table 2

Feature filtering methods.

Abbreviation	Description	Parameters or methods
Linear regression	Parameter selection based on the linear regression	Based on sklearn calculation
SVR	Parameter selection based on support vector regression	Based on sklearn calculation, take the linear kernel as a function
Random forest	Parameter selection based on a random forest	Based on sklearn calculation
RFE_svr	Parameter selection based on recursive feature elimination	Based on sklearn calculation