[Retracted] The Application of Artificial Intelligence Oriented to the Internet of Things Technology in the Complexity of Digital Crossborder Trade

Table 3

Test set prediction results of different gram models.

-gram	Accuracy	Precision	Recall	-measure
1-gram	0.9842	0.9853	0.9825	0.9839
2-gram	0.9914	0.9952	1.0	0.99759
3-gram	0.9825	1.0	0.9853	0.9926