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A Geometric Proximal Gradient Method for Sparse Least Squares Regression with Probabilistic Simplex Constraint.

Guiyun XiaoZheng-Jian Bai
Published in: J. Sci. Comput. (2022)
Keyphrases
  • gradient method
  • convergence rate
  • step size
  • optimization methods
  • negative matrix factorization
  • probabilistic model
  • generative model
  • convex formulation
  • sparse representation
  • image processing
  • nearest neighbor