BioEve Search: A Novel Framework to Facilitate Interactive Literature Search

Table 3

Summary of classification approaches: test instances (marked events) for each class type in test dataset. Precision, recall, and F1-score in percentage. Compared to NB + EM and CRF, Maximum Entropy based classifier had better average precision, but CRF has best recall and good precision, giving it best F-Measure of the three well-known classifiers.

Event type	Test instances	NB + EM			MaxEnt			CRF
	Total: 942	P	R	F1	P	R	F1	P	R	F1
Phosphorylation	38	62	42	50	97	73	83	80	83	81
Protein catabolism	17	60	47	53	97	73	83	85	86	85
Gene expression	200	60	41	49	88	58	70	75	81	78
Localization	39	39	47	43	61	69	65	67	79	72
Transcription	60	24	52	33	49	80	61	57	78	66
Binding	153	56	63	59	65	62	63	65	81	72
Regulation	90	47	69	55	52	67	58	62	73	67
Positive regulation	220	70	27	39	75	25	38	55	74	63
Negative regulation	125	42	46	44	54	38	45	68	82	74
Average		51	48	47	71	61	63	68	80	73