Availability of MudPIT data for classification of biological samples

Table 2 Performance of classification obtained by using SVM - Collection2

	Spec.	Sens.	PPV	NPV	Acc.	F-score	Bal. Acc.	Informedness	MCC
Proteins	93%	93%	93%	93%	93%	0.46	92%	85%	0.85
Peptides	100%	100%	100%	100%	100%	0.50	100%	100%	1
m/z-DB1	62%	92%	89%	71%	77%	0.40	77%	54%	0.47
m/z-DB2	77%	77%	77%	77%	77%	0.38	77%	54%	0.54
m/z-DB3	85%	85%	85%	85%	85%	0.42	84%	70%	0.69

Specificity (Spec.), sensitivity (Sens.), positive predictive value (PPV), negative predictive value (NPV), accuracy (Acc.), F-score, balanced accuracy (Bal. Acc.), informedness and Matthews correlation coefficient (MCC) of collection 2. Evaluation capabilities have been obtained using observations not considered in the signal selection phase.