Preconditioned Spectral Gradient Method.

Francisco Luengo Marcos Raydan William Kile Glunt Tom L. Hayden

Published in: Numer. Algorithms (2002)

Keyphrases

gradient method
convergence rate
step size
negative matrix factorization
convex formulation
optimization methods
convergence speed
natural gradient learning
computer vision
neural network
genetic algorithm
multiresolution
missing data
learning rate