Exponential node clustering at singularities for rational approximation, quadrature, and PDEs.
Lloyd N. TrefethenYuji NakatsukasaJ. A. C. WeidemanPublished in: Numerische Mathematik (2021)
Keyphrases
- clustering algorithm
- clustering method
- partial differential equations
- k means
- spectral clustering
- efficient computation
- approximation error
- image processing
- hierarchical clustering
- unsupervised learning
- self organizing maps
- data clustering
- fourier transform
- information theoretic
- approximation algorithms
- outlier detection
- level set
- data points
- decision making
- neural network
- data sets
- image denoising
- closed form
- cluster analysis
- document clustering
- tree structure
- xml documents
- fuzzy clustering
- pairwise
- anisotropic diffusion
- categorical data