Penalised maximum likelihood estimation for fractional Gaussian processes

被引:7
|
作者
Lieberman, O [1 ]
机构
[1] Technion Israel Inst Technol, Fac Ind Engn & Management, IL-32000 Haifa, Israel
关键词
approximate modification; ARFIMA; Firth's formula; fractional differencing;
D O I
10.1093/biomet/88.3.888
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
We apply and extend Firth's (1993) modified score estimator to deal with a class of stationary Gaussian long-memory processes. Our estimator removes the first-order bias of the maximum likelihood estimator. A small simulation study reveals the reduction in the bias is considerable, while it does not inflate the corresponding mean squared error.
引用
收藏
页码:888 / 894
页数:7
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