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Computing Symplectic Eigenpairs of Symmetric Positive-Definite Matrices via Trace Minimization and Riemannian Optimization.
Nguyen Thanh Son
Pierre-Antoine Absil
Bin Gao
Tatjana Stykel
Published in:
SIAM J. Matrix Anal. Appl. (2021)
Keyphrases
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symmetric positive definite matrices
dictionary learning
vector space
log euclidean
riemannian manifolds
riemannian metric
sparse coding
affine invariant
objective function
sparse representation
image classification
medical imaging
shape analysis
constrained optimization