Table 5. Accuracy with bidirectional LSTM layers and dropout.

The number of layers	Dropout	UAS	LAS
1	1.0	89.21	87.12
	0.7	89.13	86.68
2	1.0	89.62	87.68
	0.7	89.48	87.38
3	1.0	89.17	86.99
	0.7	89.38	87.24