TABLE I.

The main notations used in our proposed formulation in Eq. (9)

Notation	Size	Description
X1	d1 × n	Feature matrix for MRI data
X2	d1 × n	Feature matrix for SNP data
W1	d1 × h	Mapping matrix, it is used to map MRI features to a joint feature space
W2	d2 × d1	Mapping matrix, it is used to map SNP features to MRI feature space
P	h × d1	Projection matrix
L1	n × n	Laplacian matrix
L2	n × n	Laplacian matrix
n		Number of subjects
d1		Dimension of MRI features
d2		Dimension of SNP features
h		Dimension of the joint feature space
β,γ,λ1,λ2		Regularization parameters