Robust nonnegative matrix factorization using L21-norm.

Deguang Kong Chris H. Q. Ding Heng Huang

Published in: CIKM (2011)

Keyphrases

nonnegative matrix factorization
probabilistic latent semantic indexing
sparsity constraints
matrix factorization
data representation
negative matrix factorization
active set
objective function
least squares
spectral clustering
email
semi supervised
principal component analysis