Table 1.

Results on training and test sets.

Set	Pos	Neg	TP	FP	TN	FN	Sensitivity TP/TP + FN	Specificity TN/TN + FP	Accuracy TP + TN/Pos + Neg
Training	484	1,343	439	86	1,257	45	0.91	0.94	0.93
Test	207	574	159	83	491	48	0.77	0.86	0.83
Sweet		100		17	83			0.83
Tasteless		39		7	32			0.82
Non-bitter flavors		435		59	376			0.86

Pos- number of positive molecules in the set. Neg- number of negative molecules in the set. TP- number of positive (bitter) molecules correctly classified. FP- number of negative (non-bitter) molecules incorrectly classified. TN- number of negative (non-bitter) molecules correctly classified. FN- number of positive molecules (bitter) incorrectly classified. Sensitivity TP/(TP + FN). Specificity TN/(TN + FP).