| 对数幂广义威布尔回归模型的全局影响分析 |
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| 引用本文： | 韩明鸣,曲昊,解锋昌.对数幂广义威布尔回归模型的全局影响分析[J].三峡大学学报(自然科学版),2009,31(5):109-112. |
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| 作者姓名： | 韩明鸣 曲昊 解锋昌 |
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| 作者单位： | 南京农业大学,数学系,南京,210095 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 基于幂广义威布尔模型，文章给出了对数幂广义威布尔回归模型并研究了相应的参数估计．同时利用数据删除方法详细探讨了该回归模型全局影响问题，得到了数据删除模型中参数估计的一步近似和相应的广义Cook距离、似然距离和WK统计量．最后。通过数值实例验证了文章中给出的诊断方法的有效性．
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| 关 键 词： | 对数幂广义威布尔回归模型 数据删除模型 广义Cook距离 似然距离 WK统计量 |
Global Influence Analysis of Log-generalized-power-Weibull Regression Models |
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| Han Mingming,Qu Hao,Xie Fengchang.Global Influence Analysis of Log-generalized-power-Weibull Regression Models[J].Journal of China Three Gorges University(Natural Sciences),2009,31(5):109-112. |
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| Authors: | Han Mingming Qu Hao Xie Fengchang |
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| Institution: | Han Mingming Qu Hao Xie Fengchang (Department of Mathematics, Nanjing Agricultural University, Nanjing 210095, China) |
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| Abstract: | A log-generalized-power-Weibull regression model is given based on power generalized Weibull model; and parameter estimation is studied. Meanwhile, global influence diagnostics for log-generalized-pow- er-Weibull regression models is dicussed in detail based on case-deletion model （CDM）. The one-step approxi- mations of the estimates and generalized Cook distance, WK measures and Likelihood distance are obtained. Finally, the effectiveness of statistics obtained in this paper is verified through a numerical example. |
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| Keywords: | log-generalized-power-Weibull regression models case-deletion model generalized Cook distance likelihood distance WK measures |
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