TY - RPRT TI - Sparsity Constraint Nonnegative Matrix Factorization for Characterization and Extraction of Critical Minerals AU - Ahmmed, Bulbul [Los Alamos National Laboratory] (ORCID:0000000221360414) AU - O'Malley, Daniel [Los Alamos National Laboratory] (ORCID:0000000304323088) AU - Goehring, Brent Marshal [Los Alamos National Laboratory] (ORCID:0000000164055156) PY - 2025 DO - 10.2172/2511264 UR - https://www.osti.gov/biblio/2511264 ID - 2511264 ER -