Dictionary learning by nonnegative matrix factorization with 1/2-norm sparsity constraint.

Zhenni Li Zunyi Tang Shuxue Ding

Published in: CYBCONF (2013)

Keyphrases

sparsity constraints
dictionary learning
nonnegative matrix factorization
sparse representation
negative matrix factorization
sparse coding
objective function
data representation
spectral clustering
matrix factorization
principal component analysis
least squares
pattern recognition
information retrieval
low rank