Table 4:

Comparison of the results from our proposed method with other existing methods on longitudinal multi modal data. The error has been reported using RMSE metric in six different future time points.

Method	Modality	Time Points
		T1	T6	T12	T24	T36	T48
Ridge	MRI, PET, COG, CSF	1.90±0.47	2.33±0.68	2.43±0.74	3.17±0.73	3.20±0.83	4.05±0.90
Lasso	MRI, PET, COG, CSF	1.83±0.37	2.34±0.64	2.45±0.53	3.11±0.70	3.15±0.74	4.00±0.76
TGL	MRI, PET, COG, CSF	1.93±0.43	2.32±0.45	2.42±0.55	3.22±0.67	3.10±0.82	3.87±0.93
nCFGL1	MRI, PET, COG, CSF	1.81±0.55	2.31±0.58	2.41±0.67	3.28±0.46	3.49±0.59	4.06±0.70
cFSGL	MRI, PET, COG, CSF	1.88±0.85	2.33±0.64	2.40±0.73	3.20±0.68	3.03±0.86	3.61±0.78
${\ell }_{2,1}\text{-norm}$	MRI, PET, COG, CSF	1.89±0.75	2.34±0.52	2.38±0.76	3.24±0.59	3.08±0.67	3.64±0.69
Zhu et al., 2016	MRI, PET, COG, CSF	1.87±0.52	2.31±0.66	2.32±0.50	3.27±0.62	2.98±0.96	3.56±0.87
Zhu et al., 2018	MRI, PET, COG, CSF	1.86±0.53	2.27±0.61	2.38±0.64	3.23±0.57	3.02±0.84	3.42±0.64
Proposed	MRI, PET	2.02±0.26	2.30±0.32	2.88±0.36	3.06±0.35	2.51±0.31	2.60±0.32
	MRI, PET, CSF	1.95±0.39	2.22±0.31	2.81±0.30	2.92±0.33	2.51±0.37	2.72±0.30
	MRI, PET, COG	1.60±0.27	1.79±0.23	2.30±0.23	2.41±0.35	2.53±0.32	2.20±0.30
	PET, COG, CSF	1.63±0.20	1.80±0.28	2.25±0.20	2.38±0.25	2.41±0.26	2.38±0.29
	MRI, PET, COG, CSF	1.62±0.24	1.78±0.22	2.24±0.24	2.38±0.21	2.28±0.22	2.19±0.15