部分线性模型的随机约束岭估计 |
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引用本文: | 魏传华,郭双,王肖南. 部分线性模型的随机约束岭估计[J]. 数学的实践与认识, 2014, 0(13) |
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作者姓名: | 魏传华 郭双 王肖南 |
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作者单位: | 中央民族大学理学院统计学系;中国人民大学统计学院; |
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基金项目: | 国家自然科学基金(11301565);北京高等学校“青年英才计划”项目(YETP1316);中国人民大学科学研究基金(中央高校基本科研业务费专项资金资助)项目(14XNH105) |
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摘 要: | 研究了部分线性回归模型附加有随机约束条件时的估计问题.基于Profile最小二乘方法和混合估计方法提出了参数分量随机约束下的Profile混合估计,并研究了其性质.为了克服共线性问题,构造了参数分量的Profile混合岭估计,并给出了估计量的偏和方差.
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关 键 词: | 部分线性模型 多重共线性 随机线性约束 Profile最小二乘估计 混合估计 岭回归估计 |
A Stochastic Restricted Ridge Regression Estimator in Partially Linear Models |
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Abstract: | This paper considers the estimation of a partially linear model when there are stochastic linear restrictions on the parameter components.Based on the profile least-squares approach and mixed regression estimaion,a profile mixed estimator for the parametric components was proposed and its properties was studied.Furthermore,to overcome the multicollinearity problem,a profile mixed ridge estimator for the parametric components was proposed and its bias and covariance were provided. |
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Keywords: | Partially linear model Multicollinearity Stochastic linear restrictions Profile least-squares approach Mixed estimator Ridge regression estimator |
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