A Fast Gradient Method for Nonnegative Sparse Regression With Self-Dictionary.

Nicolas Gillis Robert Luce

Published in: IEEE Trans. Image Process. (2018)

Keyphrases

gradient method
sparse regression
feature selection and classification
negative matrix factorization
sparse representation
convergence rate
low rank
linear regression
step size
optimization methods
sparse matrix
least squares
convergence speed
machine learning
image segmentation
matrix factorization