Table 4.

Results of relation extraction without KB information

Model	P	R	F1
SVM (Litway)	0.4564	0.4343	0.4451
BiLSTM-attention	0.5024	0.4495	0.4512
RNN-CNN	0.5133	0.4199	0.4619
BiLSTM (the whole sentences)	0.4335	0.3654	0.3966
BiLSTM	0.4828	0.3930	0.4333