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非线性半参数模型最小二乘近邻估计
引用本文:张松林,张昆,王新洲.非线性半参数模型最小二乘近邻估计[J].华中师范大学学报(自然科学版),2007,41(2):170-172.
作者姓名:张松林  张昆  王新洲
作者单位:1. 同济大学,测量与国土信息系,上海,200092
2. 华东师范大学,资源与环境科学学院,地理信息科学教育部重点实验室,上海,200062
3. 武汉大学,灾害监测与防治研究中心,武汉,430079
基金项目:国家自然科学基金 , 现代工程测量国家测绘局重点实验开放基金
摘    要:目前对非线性半参数模型的研究尚处于初级阶段,关于非线性半参数模型的计算理论还未见实质性报道.基于非线性半参数模型最小二乘近邻估计,给出了其参数分量和非参数分量估计的构造式,导出了参数分量和非参数分量顾及二次项直接解法的非线性直接解法.基于工程实际中的非线性模型用模拟数据进行计算,证明对于非线性半参数模型最小二乘近邻估计,可采用顾及二次项的直接解法.

关 键 词:非线性模型  半参数模型  近邻估计  非线性模型  半参数模型  最小  近邻估计  models  nearest  neighbor  estimator  计算理论  模拟数据  工程  直接解法  构造  分量估计  非参数  初级阶段  研究
文章编号:1000-1190(2007)02-0170-03
修稿时间:2006-08-26

Least square nearest neighbor estimator of non-linear semiparametric models
ZHANG Songlin,ZHANG Kun,WANG Xinzhou.Least square nearest neighbor estimator of non-linear semiparametric models[J].Journal of Central China Normal University(Natural Sciences),2007,41(2):170-172.
Authors:ZHANG Songlin  ZHANG Kun  WANG Xinzhou
Institution:1. Department of Surveying and Geomatics, Tongji University, Shanghai 200092 ; 2. Key Laboratory of Geographic Information Science, School of Resources and Environment Science, East China Normal University, Shanghai 200062; 3. Hazard Monitoring and Prevention Research Center, Wuhan University, Wuhan 430079
Abstract:Nonlinear semiparametric model is under developing, this paper focuses on the nearest neighbor estimating theory of nonlinear semiparametric models under the least square principle, including the calculating formulae of the estimation of parametric and nonparametric components, and gives the direct nonlinear estimating formulas of nearest neighbor estimator. Based on the calculation of GPS data, this paper proves that as to the least square nearest neighbor estimating of nonlinear semiparametric models, we can use direct estimating methods considering the second order items.
Keywords:nonlinear model semiparametric model nearest neighbor estimator
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