期刊
APPLICABLE ANALYSIS
卷 98, 期 8, 页码 1496-1519出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00036811.2018.1430783
关键词
Inverse problem; multiscale algorithm; sphere; regularization
资金
- National Natural Science Foundation of China [11401257, 11501102]
- Natural Science Foundation of Jiangsu Province [BK20150594]
We propose and analyze a multiscale support vector regression algorithm for noisy scattered data on the unit sphere. To this end, the algorithm uses Wendland's radial basis functions with different scales and the Vapnik -intensive loss function to compute a regularized approximation at each step. A data compression method was applied to discard small coefficients dynamically. We discuss the convergence of the algorithm and prove additional errors can be controlled so that the discarding strategy does not lead to significant errors. Numerical simulations which support the theoretical results will be presented.
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