Exponential node clustering at singularities for rational approximation, quadrature, and PDEs.
Lloyd N. TrefethenYuji NakatsukasaJ. A. C. WeidemanPublished in: CoRR (2020)
Keyphrases
- clustering algorithm
- clustering method
- k means
- cluster analysis
- level set
- spectral clustering
- categorical data
- data points
- efficient computation
- approximation error
- difference equations
- anisotropic diffusion
- fuzzy clustering
- hierarchical clustering
- data sets
- information theoretic
- closed form
- document clustering
- partial differential equations
- basis functions
- data objects
- outlier detection
- tree structure
- self organizing maps
- active contours
- unsupervised learning
- pairwise
- multiscale
- decision making