Coarse Grid Corrections in Krylov Subspace Evaluations of the Matrix Exponential.
Mike A. BotchevPublished in: SIAM J. Sci. Comput. (2023)
Keyphrases
- null space
- principal component analysis
- qr decomposition
- singular value decomposition
- low dimensional
- high dimensional data
- low rank
- eigendecomposition
- multiresolution
- subspace learning
- projection matrix
- dimensionality reduction
- linear algebra
- linear space
- coarse to fine
- transformation matrix
- grid points
- feature extraction
- positive definite
- grid computing
- image set
- subspace clustering
- computational grids
- grid enabled
- clustering high dimensional data