Non-negative matrix factorization: Ill-posedness and a geometric algorithm.

Bradley Klingenberg James Curry Anne Dougherty

Published in: Pattern Recognit. (2009)

Keyphrases

negative matrix factorization
learning algorithm
nonnegative matrix factorization
knowledge base
k means
expectation maximization
computer vision
probabilistic model
clustering method
image processing
digital libraries
signal processing
text categorization
data clustering
matrix factorization
update rule