| 引入模型误差的线性回归模型 |
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| 引用本文： | 刘宣喜,邢诚.引入模型误差的线性回归模型[J].测绘工程,2009,18(3):45-46,50. |
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| 作者姓名： | 刘宣喜 邢诚 |
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| 作者单位： | 1. 安庆勘察测绘院,安徽,安庆,246000
2. 武汉大学,测绘学院,湖北,武汉,430079 |
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| 摘 要： | 在线性回归模型中,经常出现病态问题,严重影响计算结果的精度.文中提出一种引入模型误差求解部分参数的方法,此方法可以改变病态问题,提高部分参数的求解精度,且通过算例检验这种方法的可行性,并探讨它的使用范围.
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| 关 键 词： | 病态问题 线性回归 法方程 |
The introduction of model error to linear regression model |
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| LIU Xuan-xi,XING Cheng.The introduction of model error to linear regression model[J].Engineering of Surveying and Mapping,2009,18(3):45-46,50. |
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| Authors: | LIU Xuan-xi XING Cheng |
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| Institution: | 1.Anqing Institute of Prospecting and Mapping;Anqing 246000;China;2.School of Geodesy and Geomatics;Wuhan University;Wuhan 430079;China |
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| Abstract: | Ill-conditioned problems widely exist in general linear regression model and seriously affect the accuracy of results.In order to change pathological problems,a new method is presented by solving some of the parameters with the introduction to the function model error.The solution enhances the accuracy of parameters,and the feasibility of the method is tested by using an example. |
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| Keywords: | ill-conditioned problem linear regression Normal equation |
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