Table 5.

Comparison of the different POS tagging methods

	LSTM-CRF		SM-LSTM-CRF
	Initial POS tagging	Reduced POS tagging	Initial POS tagging	Reduced POS tagging
P	0.7606	0.7959	0.7819	0.8054
R	0.7487	0.7829	0.7713	0.7961
F	0.7546	0.7894	0.7765	0.8007