Coupled canonical polyadic decomposition of multi-group fMRI data with spatial reference and orthonormality constraints

Li-Dan Kuang, Zhi-Ming He, Jianming Zhang, Feng Li

Abstract: Highlights•A novel constrained CCPD by incorporating spatial reference and orthonormality is proposed for multi-group fMRI data.•The shared SMs and group-specific TCs and subject differences can be decomposed by the proposed method.•Based on accelerated ALS, shared SMs are further twice updated by orthnormalization and minimizing square error of shared SMs and spatial references.•By using AdaBoost, resting-state group-specific TCs estimated by the proposed method exhibit significant difference between HC and SZ groups.