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arXiv math/0406427math.STstat.TH
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非凸参数空间上线性泛函的Minimax估计

Minimax estimation of linear functionals over nonconvex parameter spaces

T. Tony Cai, Mark G. Low

摘要:

将估计线性泛函的极小极大理论推广到凸参数空间的有限并的情形。极大极小风险的上界和下界仍然可以用连续模来描述。然而,与凸参数空间的理论相反,速率优化过程通常需要是非线性的。这种非线性过程的建设。本文的结果对适应理论有重要的应用。

英文摘要:

The minimax theory for estimating linear functionals is extended to the case of a finite union of convex parameter spaces. Upper and lower bounds for the minimax risk can still be described in terms of a modulus of continuity. However in contrast to the theory for convex parameter spaces rate optimal procedures are often required to be nonlinear. A construction of such nonlinear procedures is given. The results developed in this paper have important applications to the theory of adaptation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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