Table 3.

Performance of feature sets with different dimension.

The nth training	Feature Dimension	Measurements	Dice			PPV			Sensitivity			Specificity
		ROI	Complete	Core	Enhancing	Complete	Core	Enhancing	Complete	Core	Enhancing	Complete	Core	Enhancing
1	62	HGG&LGG	0.91	0.62	0.61	0.94	0.63	0.64	0.89	0.61	0.58	0.79	0.81	0.92
		HGG	0.92	0.63	0.61	0.94	0.65	0.64	0.89	0.62	0.59	0.79	0.82	0.92
		LGG	0.86	0.54	–	0.91	0.56	–	0.83	0.55	–	0.76	0.55	–
2	57	HGG&LGG	0.91	0.62	0.61	0.94	0.63	0.64	0.88	0.61	0.58	0.78	0.80	0.92
		HGG	0.92	0.63	0.61	0.94	0.64	0.64	0.89	0.61	0.58	0.79	0.82	0.92
		LGG	0.87	0.55	–	0.91	0.55	–	0.84	0.57	–	0.75	0.57	–
3	52	HGG&LGG	0.91	0.62	0.61	0.94	0.63	0.64	0.88	0.61	0.58	0.78	0.80	0.92
		HGG	0.91	0.63	0.61	0.94	0.64	0.64	0.89	0.61	0.58	0.79	0.82	0.92
		LGG	0.87	0.55	–	0.91	0.55	–	0.83	0.57	–	0.74	0.57	–
4	47	HGG&LGG	0.91	0.62	0.61	0.94	0.63	0.64	0.88	0.61	0.58	0.78	0.80	0.92
		HGG	0.91	0.63	0.61	0.94	0.64	0.64	0.89	0.61	0.58	0.79	0.81	0.92
		LGG	0.87	0.56	–	0.91	0.55	–	0.83	0.57	–	0.74	0.57	–
5	42	HGG&LGG	0.91	0.62	0.61	0.94	0.63	0.64	0.88	0.61	0.58	0.78	0.80	0.92
		HGG	0.91	0.63	0.61	0.94	0.64	0.64	0.89	0.61	0.58	0.79	0.81	0.92
		LGG	0.87	0.55	–	0.91	0.55	–	0.83	0.56	–	0.74	0.56	–
6	37	HGG&LGG	0.91	0.61	0.60	0.94	0.63	0.64	0.88	0.61	0.58	0.78	0.80	0.92
		HGG	0.91	0.63	0.60	0.94	0.64	0.64	0.89	0.61	0.58	0.79	0.82	0.92
		LGG	0.86	0.55	–	0.92	0.56	–	0.82	0.54	–	0.76	0.54	–
7	32	HGG&LGG	0.91	0.62	0.61	0.94	0.62	0.64	0.88	0.61	0.58	0.76	0.79	0.92
		HGG	0.91	0.63	0.61	0.94	0.64	0.63	0.89	0.62	0.58	0.77	0.80	0.92
		LGG	0.87	0.55	–	0.91	0.55	–	0.83	0.57	–	0.72	0.57	–
8	27	HGG&LGG	0.91	0.62	0.61	0.93	0.62	0.64	0.89	0.62	0.58	0.76	0.78	0.92
		HGG	0.91	0.63	0.61	0.94	0.64	0.63	0.89	0.62	0.58	0.77	0.80	0.92
		LGG	0.87	0.55	–	0.90	0.54	–	0.83	0.57	–	0.71	0.57	–
9	22	HGG&LGG	0.91	0.62	0.61	0.93	0.62	0.64	0.89	0.62	0.58	0.75	0.77	0.92
		HGG	0.91	0.63	0.61	0.94	0.63	0.63	0.89	0.63	0.58	0.76	0.79	0.92
		LGG	0.87	0.56	–	0.90	0.54	–	0.84	0.58	–	0.71	0.58	–
10	17	HGG&LGG	0.91	0.62	0.61	0.93	0.61	0.64	0.89	0.62	0.58	0.73	0.76	0.92
		HGG	0.91	0.63	0.61	0.93	0.62	0.64	0.89	0.63	0.58	0.74	0.78	0.92
		LGG	0.86	0.55	–	0.90	0.54	–	0.84	0.57	–	0.70	0.57	–
11	12	HGG&LGG	0.91	0.61	0.60	0.92	0.59	0.63	0.89	0.63	0.57	0.70	0.74	0.92
		HGG	0.91	0.62	0.60	0.93	0.61	0.63	0.90	0.63	0.57	0.71	0.76	0.91
		LGG	0.87	0.56	–	0.89	0.54	–	0.85	0.59	–	0.67	0.59	–
12	7	HGG&LGG	0.90	0.58	0.55	0.91	0.56	0.59	0.89	0.61	0.52	0.67	0.70	0.91
		HGG	0.90	0.59	0.55	0.92	0.57	0.59	0.89	0.62	0.52	0.68	0.72	0.91
		LGG	0.86	0.54	–	0.88	0.52	–	0.84	0.56	–	0.65	0.56	–
13	2	HGG&LGG	0.86	0.48	0.34	0.85	0.44	0.36	0.87	0.53	0.33	0.42	0.52	0.86
		HGG	0.87	0.48	0.36	0.86	0.44	0.38	0.89	0.54	0.34	0.42	0.54	0.86
		LGG	0.81	0.43	–	0.83	0.44	–	0.80	0.42	–	0.41	0.42	–