Table 5.

Segmentation results for the UZ Leuven MP-MRI dataset when using kmeans ++ 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	73 ± 16	67 ± 26	73 ± 15	66 ± 26	57 ± 26	72 ± 17
	Necrosis	56 ± 28	49 ± 29	57 ± 29	45 ± 31	35 ± 28	57 ± 35
	Edema	51 ± 23	60 ± 16	62 ± 21	60 ± 15	50 ± 29	56 ± 20
	Core	84 ± 9	85 ± 9	84 ± 9	83 ± 12	82 ± 10	84 ± 9
	Whole	80 ± 12	83 ± 11	85 ± 11	82 ± 10	83 ± 10	83 ± 11
Undetected [#]	Tumor	0/14	1/14	0/14	1/14	2/14	0/14
	Necrosis	1/9	2/9	1/9	2/9	3/9	2/9
	Edema	1/9	0/9	0/9	0/9	2/9	0/9