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中位数交叉核实准则

Published in Chinese Science Bulletin (Chinese Version) • Sep 1, 1997
NobleIDNI1P77W82R90S19
Authors:
瑛 杨

Abstract

考虑非参数中位数回归模型Yni=g(xni)+εni,1≤i≤n,(1)其中g:[0,1]|→R是待估计的连续函数,{xni:1≤i≤n}是区间[0,1]上的非随机设计点列,{εni:1≤i≤n}是iid随机变量,中位数为零,{Yni:1≤i≤n}是观察值.对x∈[0,1],n≥1,记Dnj(x)为x的第j个近邻,j=1,2,…,n,即{Dn1(x),Dn2(x),…,Dnn(x)}为{xn1,xn2,…,xnn}的一个置换,满足|Dn1(x)-x|≤|Dn2(x)-x|≤…≤Dnn(x)-x|,结按自然顺序消去.令Yni(x)和εni(x)分别表示Dni(x)(1≤i≤n)处的观察值和随机变...

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