Fig 1.
Overall framework.
Table 1.
Symbol definition.
Fig 2.
Framework of SA-EFS ensemble feature selection.
Fig 3.
Principle of stacking algorithm.
Table 2.
SE-stacking algorithm.
Table 3.
Construction features of the next time first order difference in operation 5.
Table 4.
Construction features of the first order difference in operation 5.
Table 5.
Characteristics of user operation construction.
Table 6.
Other characteristic structures.
Table 7.
Result of feature selection.
Fig 4.
Characteristic correlation heat map.
Fig 5.
n_ parameter adjustment of estimators.
Fig 6.
max_ depth and min_ samples_ split joint parameter adjustment.
Table 8.
Confusion matrix structure.
Table 9.
Model comparison results.
Fig 7.
Comparison of F1 scores of each model.