Block Diagonalization of Quaternion Circulant Matrices with Applications to Quaternion Tensor Singular Value Decomposition.
Junjun PanMichael Kwok-Po NgPublished in: CoRR (2023)
Keyphrases
- singular value decomposition
- fourier transform
- least squares
- singular values
- dimensionality reduction
- singular vectors
- low rank
- dimension reduction
- latent semantic indexing
- reconstruction error
- tensor analysis
- tensor factorization
- principal component analysis
- frequency domain
- data matrix
- low rank approximation
- null space
- low rank matrix
- linear algebra
- factorization method
- correlation matrix
- high order
- measurement matrix
- image sequences