Title
Optimal Sampling Points in Reproducing Kernel Hilbert Spaces
Abstract
The recent development of compressed sensing seeks to extract information from as few samples as possible. In such applications, since the number of samples is restricted, one should deploy the sampling points wisely. We are motivated to study the optimal distribution of finite sampling points in reproducing kernel Hilbert spaces, the natural background function spaces for sampling. Formulation under the framework of optimal reconstruction yields a minimization problem. In the discrete measure case, we estimate the distance between the optimal subspace resulting from a general Karhunen–Loève transform and the kernel space to obtain another algorithm that is computationally favorable. Numerical experiments are then presented to illustrate the effectiveness of the algorithms for the searching of optimal sampling points.
Year
DOI
Venue
2016
10.1016/j.jco.2015.11.010
Journal of Complexity
Keywords
DocType
Volume
Sampling points,Optimal distribution,Reproducing kernels,The Karhunen–Loève transform
Journal
34
Issue
ISSN
Citations 
C
0885-064X
1
PageRank 
References 
Authors
0.36
10
2
Name
Order
Citations
PageRank
Rui Wang185.36
Haizhang Zhang212616.42