A Nonuniform Fast Fourier Transform Based on Low Rank Approximation.
Diego Ruiz-AntolínAlex TownsendPublished in: SIAM J. Sci. Comput. (2018)
Keyphrases
- low rank approximation
- singular value decomposition
- low rank matrix approximation
- subspace learning
- low rank
- spectral clustering
- iterative algorithms
- kernel matrix
- data dependent
- adjacency matrix
- reconstruction error
- latent semantic indexing
- frequency domain
- image reconstruction
- nonnegative matrix factorization
- least squares
- metric learning
- kernel methods
- kernel function
- dimensionality reduction
- pattern recognition