Relation Extraction Based on Fusion Dependency Parsing from Chinese EMRs

Table 4

Performance on relation extraction for different features.

Relation types	BFs			BFs + EFs			BFs + EFs + DSFs^1
	P	R	F1	P	R	F1	P	R	F1
TrID	52.76	61.67	56.87	59.75	68.32	63.75	64.34	72.09	67.99
TrWD	49.31	51.31	50.29	56.79	60.57	58.62	61.09	65.83	63.37
TrCD	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
TrAD	68.57	64.97	66.72	71.19	72.76	71.97	76.93	77.93	77.43
TrNAD	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
TrIS	59.13	68.12	63.31	64.41	71.43	67.74	68.01	76.83	72.15
TrWS	51.97	59.32	55.40	55.46	62.82	58.91	62.24	67.42	64.73
TrCS	69.13	73.97	71.47	72.73	86.72	79.11	77.03	90.43	83.19
TrAS	58.34	61.45	59.85	62.61	64.86	63.72	66.78	68.92	67.83
TrNAS	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
TeRD	73.21	77.61	75.35	77.89	80.75	79.29	82.89	84.79	83.83
TeCD	59.32	61.75	60.51	63.09	64.09	63.59	68.98	69.76	69.37
TeRS	81.78	89.31	85.38	84.98	93.73	89.14	86.92	92.67	89.70
TeAS	61.79	62.45	62.12	65.89	67.63	66.75	71.89	72.83	72.36
DCS	58.71	62.75	60.66	61.72	68.53	64.95	65.27	72.46	68.68
SID	75.82	78.97	77.36	80.62	81.41	81.01	84.81	85.42	85.11
Total	63.07	67.20	65.07	67.47	72.59	69.94	72.09	76.72	74.33

BFs represent basic features, extended features are represented as EFs, and DSFs are used to represent dependency syntactic features.