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A geometric proximal gradient method for sparse least squares regression with probabilistic simplex constraint.
Guiyun Xiao
Zheng-Jian Bai
Published in:
CoRR (2021)
Keyphrases
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gradient method
convergence rate
step size
optimization methods
negative matrix factorization
probabilistic model
sparse representation
convex formulation
machine learning
image processing
digital libraries
high dimensional
cost function
collaborative filtering
text classification
generative model