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cone (second order cone programs), and over the cone of positive semidefinite matrices (semidefinite programs). ... Specialized to the nonnegative orthant, the SCMU algorithm corresponds to the seminal algorithm by Lee and Seung for computing Nonnegative Matrix Factorizations. ... YS gratefully acknowledges Ministry of Education (Singapore) Academic Research Fund (Tier 1) R-146-000-329-133. ...arXiv:2108.00740v1 fatcat:rhznf5qzqffwxm76wvlxqxeo54