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Robust Dictionary Learning and Sparse Coding With Riemannian Geometry Preserving Method in Symmetric Matrices Inner Product Space.
Yang Zhang
Yuesheng Zhu
Published in:
IEEE Access (2020)
Keyphrases
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dictionary learning
sparse coding
group sparsity
sparse representation
unsupervised learning
natural images
generative model
image representation
linear combination
image classification
sparse codes
discriminative dictionary
image processing
riemannian manifolds
vector space
input data
pairwise
face recognition