Table 3.

Segmentation results for the UZ Gent MP-MRI dataset when using SPA initialization. Mean Dice-score ± standard deviation is reported for active tumor, necrosis, edema, the tumor core and the whole tumor. The number of undetected cases is reported for active tumor, necrosis and edema.

		NMF			Clustering
		HALS	Convex	hNMF	FCM	GMM	SC
Dice [%]	Tumor	65 ± 13	64 ± 18	71 ± 15	60 ± 21	66 ± 21	68 ± 14
	Necrosis	55 ± 27	60 ± 28	60 ± 28	41 ± 34	48 ± 33	65 ± 29
	Edema	28 ± 23	18 ± 18	46 ± 23	38 ± 23	27 ± 26	43 ± 24
	Core	76 ± 11	74 ± 14	79 ± 12	70 ± 18	77 ± 18	76 ± 15
	Whole	78 ± 12	84 ± 10	86 ± 8	77 ± 15	84 ± 10	85 ± 11
Undetected [#]	Tumor	0/21	0/21	0/21	0/21	0/21	0/21
	Necrosis	1/12	1/12	1/12	3/12	3/12	1/12
	Edema	5/15	7/15	2/15	3/15	6/15	3/15