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Approximating sparse Hessian matrices using large-scale linear least squares.
Jaroslav M. Fowkes
Nicholas I. M. Gould
Jennifer A. Scott
Published in:
Numer. Algorithms (2024)
Keyphrases
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linear least squares
coefficient matrix
least squares
linear systems
regularized least squares
condition number
interior point methods
sparse matrix
singular value decomposition
negative matrix factorization
linear algebra
correlation matrix
computer vision
natural images