Table 8. Confusion matrix for Olive oil data set.

	MulticlusterKDE			K-means			PdfCluster
macro-area	C1	C2	C3	C1	C2	C3	C1	C2	C3
Sul	323	0	0	190	91	42	296	0	27
Sardina	0	97	1	22	76	0	0	98	0
Centre-North	0	26	125	0	17	134	0	6	145
	K-medoids			CLARA			DBSCAN
	C1	C2	C3	C1	C2	C3	C1	C2	C3
Sul	196	84	43	204	78	41	323	0	0
Sardina	19	79	0	31	67	0	98	0	0
Centre-North	0	18	133	0	21	130	129	4	18