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机译:DCA based approaches for bi-level variable selection and application for estimate multiple sparse covariance matrices
Univ Lorraine, Dept IA, LGIPM, F-57000 Metz, France|Inst Univ France IUF, Paris, France;
Univ Lorraine, Dept IA, LGIPM, F-57000 Metz, France;
Univ Normandie, Lab Math, INSA Rouen, Caen, France;
Bi-level variable selection; Mixed norm; Nonconvex approximation; Multiple covariance matrices; DC programming; DCA;