Conditioning of Partial Nonuniform Fourier Matrices with Clustered Nodes.
Dmitry BatenkovLaurent DemanetGil GoldmanYosef YomdinPublished in: SIAM J. Matrix Anal. Appl. (2020)
Keyphrases
- fourier transform
- graph structure
- eigenvalues and eigenvectors
- directed graph
- spanning tree
- radon transform
- tomographic image reconstruction
- fourier spectrum
- neighboring nodes
- fourier analysis
- pairwise comparison
- possibility theory
- covariance matrices
- image processing
- image reconstruction
- frequency domain
- dimensionality reduction
- np hard
- clustering algorithm