• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Li, Rui (Li, Rui.) | Liu, Youming (Liu, Youming.) (学者:刘有明)

收录:

EI Scopus SCIE

摘要:

Using wavelet methods, Fan and Koo study optimal estimations for a density with some additive noises over a Besov ball B-r,q(s) (L) (r,q >= 1) and over L-2 risk (Fan and Koo, 2002 [13]). The L-infinity risk estimations are investigated by Lounici and Nickl (2011) [19]. This paper deals with optimal estimations over L-P (1 <= p <= infinity) risk for moderately ill-posed noises. A lower bound of L-P risk is firstly provided, which generalizes Fan Koo and Lounici-Nickl's theorems; then we define a linear and non-linear wavelet estimators, motivated by Fan Koo and Pensky-Vidakovic's work. The linear one is rate optimal for r >= p, and the non-linear estimator attains suboptimal (optimal up to a logarithmic factor). These results can be considered as an extension of some theorems of Donoho et al. (1996) [10]. In addition, our non-linear wavelet estimator is adaptive to the indices s, r, q and L. (C) 2013 Elsevier Inc. All rights reserved.

关键词:

Additive noise Besov spaces Density function Optimality Wavelet estimation

作者机构:

  • [ 1 ] [Li, Rui]Beijing Univ Technol, Dept Appl Math, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Youming]Beijing Univ Technol, Dept Appl Math, Beijing 100124, Peoples R China

通讯作者信息:

  • 刘有明

    [Liu, Youming]Beijing Univ Technol, Dept Appl Math, Beijing 100124, Peoples R China

查看成果更多字段

相关关键词:

相关文章:

来源 :

APPLIED AND COMPUTATIONAL HARMONIC ANALYSIS

ISSN: 1063-5203

年份: 2014

期: 3

卷: 36

页码: 416-433

2 . 5 0 0

JCR@2022

ESI学科: MATHEMATICS;

ESI高被引阀值:56

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 28

SCOPUS被引频次: 31

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 2

在线人数/总访问数:3448/2926493
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司