Table 4.

Test data using continuous data only. True positives (TP), false positives (FP), false negatives (FN), precision, recall, and F1 scores when assessing for accuracy of negation, with strict and relaxed matching expectations

	Matching standard	Scored items = 221
		TP	FP	FN	Precision	Recall	F1
Continuous text without negation	Strict	162	17	42	0.91	0.80	0.85
	Relaxed	167	17	37	0.91	0.82	0.87
Continuous text with negation	Strict	143	35	43	0.81	0.77	0.79
	Relaxed	146	37	38	0.80	0.80	0.80