Positive-definite regularized estimation for high-dimensional covariance on scalar regression - He, Jie; Qiu, Yumou; Zhou, Xiao-Hua (Biometrics, 2025)
Keywords: Algorithms; Biometry - methods; Brain - physiology; Computer Simulation; Data Interpretation, Statistical; Humans; Models, Statistical; Regression Analysis; fMRI data; high dimensionality; ADMM algorithm; regularization; conditional average covariance matrix; positive-definiteness constraint