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Low-Rank Variance Approximation in GMRF Models: Single and Multiscale Approaches.
Dmitry M. Malioutov
Jason K. Johnson
Myung Jin Choi
Alan S. Willsky
Published in:
IEEE Trans. Signal Process. (2008)
Keyphrases
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low rank
multiscale
factorization methods
matrix factorization
rank minimization
probabilistic model
model selection
random fields
singular value decomposition
convex optimization
missing data
low rank matrix
data sets
sparse representation
higher order
wavelet transform
image segmentation