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2-D FFT algorithm by matrix factorization in a 2-D space.
M. Wang
E. B. Lee
Published in:
Multidimens. Syst. Signal Process. (1994)
Keyphrases
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matrix factorization
objective function
fast fourier transform
k means
expectation maximization
learning algorithm
multiscale
collaborative filtering
image classification
sparse representation
low rank
highly efficient