Learning with coefficient-based regularization and a""1 -penalty

被引:18
作者
Guo, Zheng-Chu [1 ]
Shi, Lei [2 ]
机构
[1] Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, Devon, England
[2] Fudan Univ, Sch Math Sci, Shanghai Key Lab Contemporary Appl Math, Shanghai 200433, Peoples R China
基金
美国国家科学基金会;
关键词
Learning theory; Coefficient-based regularization and l(1)-penalty; Unbounded sampling processes; Concentration estimate for error analysis; KERNEL BANACH-SPACES; L(1) NORM; REGRESSION; SELECTION; RATES;
D O I
10.1007/s10444-012-9288-6
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The least-square regression problem is considered by coefficient-based regularization schemes with a""(1) -penalty. The learning algorithm is analyzed with samples drawn from unbounded sampling processes. The purpose of this paper is to present an elaborate concentration estimate for the algorithms by means of a novel stepping stone technique. The learning rates derived from our analysis can be achieved in a more general setting. Our refined analysis will lead to satisfactory learning rates even for non-smooth kernels.
引用
收藏
页码:493 / 510
页数:18
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