V6 classifiers (version v0)

Fecal signatures were characterized in 6 sources including: human (sewage), dog, cow, deer, pig and herbivore (created from cow and deer samples).

Attributes of the classifiers are summarized in the table below. Sequences included in the classifiers are listed here, and the individual predictions are detailed here.

V6 - Bacteroidales
	human (sewage)	dog	pig	deer	cattle	herbivore
#ASVs in the classifier	107	40	42	49	79	52
Decision cut-off	21	1	14	4	26	40
TP	9	26	35	13	41	94
FN	0	5	0	0	7	14
TN	261	217	232	217	181	127
FP	0	22	3	40	41	35
Specificity	100	91	99	84	82	78
Sensitivity	100	84	100	100	85	87
Classifier type	Global	Discarded	Global	Discarded	Global	Global

V6 - Clostridiales
	human (sewage)	dog	pig	deer	cattle	herbivore
#ASVs in the classifier	139	92	44	52	97	41
Decision cut-off	16	34	31	26	26	25
TP	9	31	36	13	39	93
FN	0	0	0	0	9	14
TN	265	212	237	247	194	147
FP	0	31	1	14	32	20
Specificity	100	87	100	95	86	88
Sensitivity	100	100	100	100	81	87
Classifier type	Global	Global	Global	Global	Global	Global

Abbreviations: TP: true positive (sample correctly classified), FN: false negative (sample not classified as expected), TN: true negative (sample should not be classified, that is should be classified as “unknown”), FP: false positive (sample classified while it was not expected). Specificity is the number of TNs divided by the sum of TNs and FPs. Sensitivity is the number of TPs divided by the sum of TPs and FNs.

V4 classifiers (version v0)

Fecal signatures were characterized in 6 sources including: human (sewage), dog, cattle, pig, ruminant (created from cow and deer samples) and herbivore (created from cow, deer and horse samples).

Attributes of the classifiers are summarized in the table below. Sequences included in the classifiers are listed here, and the individual predictions are detailed here.

V4 - Bacteroidales
	human (sewage)	dog	cattle	pig	ruminant	herbivore
#ASVs in the classifier	86	34	126	75	59	39
Decision cut-off	19	22	9	13	5	33
TP	56	9	33	26	44	56
FN	0	0	0	0	0	3
TN	138	161	161	167	140	119
FP	0	24	0	1	10	16
Specificity	100	87	100	99	93	88
Sensitivity	100	100	100	100	100	95
Classifier type	Global	Global	Draft	Global	Discarded	Global

V4 - Clostridiales
	human (sewage)	dog	cattle	pig	ruminant	herbivore
#ASVs in the classifier	141	35	81	66	70	49
Decision cut-off	17	10	16	29	10	22
TP	57	7	37	25	48	56
FN	0	2	0	0	0	7
TN	142	142	160	172	146	134
FP	0	48	2	2	5	2
Specificity	100	75	99	99	97	99
Sensitivity	100	78	100	100	100	89
Classifier type	Global	Draft	Global	Global	Draft	Global

Abbreviations: TP: true positive (sample correctly classified), FN: false negative (sample not classified as expected), TN: true negative (sample should not be classified, that is should be classified as “unknown”), FP: false positive (sample classified while it was not expected). Specificity is the number of TNs divided by the sum of TNs and FPs. Sensitivity is the number of TPs divided by the sum of TPs and FNs.