Local Asymptotic Minimax Risk Bounds for Asymmetric Loss Functions
Local Asymptotic Minimax Risk Bounds for Asymmetric Loss Functions
复制标题
非对称损失函数的局部渐近最小最大风险界限
DOI:
10.1214/aos/1176325356
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发表时间:
1994
期刊:
影响因子:
--
通讯作者:
Y. Takagi
中科院分区:
文献类型:
--
作者:
Y. Takagi
Hajek established a local asymptotic minimax risk bound for appropriate symmetric loss functions and also gave a necessary condition for the risk of an estimator to attain the lower bound. We extend these results to the case of asymmetric loss functions. The asymmetry brings about the shift of location of the loss functions. Besides, the optimal estimator that attains the bound is shown to have asymptotic normal distribution with asymptotic bias.