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半参数非线性模型中的t-型估计和影响分析

t-type estimators and influence diagnostics in semiparametric nonlinear models

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【作者】 姜荣邵明江钱伟民

【Author】 JIANG Rong~1,SHAO Ming-jiang~2,QIAN Wei-min~1 (1.Department of Mathematics,Tongji University,Shanghai 200092,China; 2.Department of Mathematics,East China Normal University,Shanghai 200062,China)

【机构】 同济大学应用数学系华东师范大学数学系

【摘要】 给出半参数非线性回归模型的t-型估计及其EM算法,同时获得估计的相合性及渐近正态性.并基于EM算法中的Q函数,研究了半参数非线性回归模型的统计诊断方法.最后,用一个模拟例子和一个实际例子验证了本文提出的t-型估计和诊断方法的有效性.

【Abstract】 t-type regression estimators for the semiparametric nonlinear models were defined,and the EM algorithm for the t-type estimators were given.Moreover,the consistency of t-type regression estimators was obtained.And on the basis of the Q-function in the EM algorithm,statistical diagnostics methods were investigated.Finally,the proposed algorithm was tested by simulation analysis and by a real data sample.

  • 【文献出处】 华东师范大学学报(自然科学版) ,Journal of East China Normal University(Natural Science) , 编辑部邮箱 ,2011年03期
  • 【分类号】O212.2
  • 【被引频次】1
  • 【下载频次】110
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