Content Controlled Spectral Indices for Detection of Hydrothermal Alteration Minerals Based on Machine Learning and Lasso-Logistic Regression Analysis. - Kyuhun Shim; Jaehyung Yu; Lei Wang 022; Sangin Lee; Sang-Mo Koh; Bum Han Lee (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2021)