Coarse grid corrections in Krylov subspace evaluations of the matrix exponential.
Mike A. BotchevPublished in: CoRR (2021)
Keyphrases
- qr decomposition
- null space
- low dimensional
- singular value decomposition
- singular vectors
- principal component analysis
- coarse to fine
- rank minimization
- multiresolution
- projection matrix
- affinity matrix
- grid computing
- covariance matrix
- feature extraction
- transformation matrix
- grid points
- eigendecomposition
- linear algebra
- subspace learning
- subspace clustering
- high dimensional data
- dimensionality reduction
- high dimensional
- linear space
- grid environment
- factorization method
- spectral clustering
- pairwise
- signal subspace
- image sequences
- clustering high dimensional data