The paper defines a regularized three-factor low-rank decomposition and reports lower reconstruction error than SVD, but the comparison is inconsistent with the optimality of truncated SVD for fixed rank.
Generalized matrix spectral factorization with symmetry and construction of quasi-tight framelets over algebraic number fields,
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Structured Variational $D$-Decomposition for Accurate and Stable Low-Rank Approximation
The paper defines a regularized three-factor low-rank decomposition and reports lower reconstruction error than SVD, but the comparison is inconsistent with the optimality of truncated SVD for fixed rank.