| 变权组合模型两种定权方法精度探讨 |
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| 引用本文： | 杨建文,杨德宏,赵福洪.变权组合模型两种定权方法精度探讨[J].测绘工程,2014(5):29-32. |
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| 作者姓名： | 杨建文 杨德宏 赵福洪 |
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| 作者单位： | 昆明理工大学国土资源工程学院,云南昆明650093 |
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| 摘 要： | 以指数曲线模型和泊松曲线模型为基础,对基于绝对误差平方和最小与绝对误差绝对值之和最小的两种定权方法进行比较分析,分别对两种模型进行变权组合。文中就确定最佳变权系数的方法进行分析研究,并以某大楼的等时距沉降观测数据为例进行验证,最后得出两种定权方法拟合精度大致相等。
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| 关 键 词： | 变权组合模型 绝对误差平方和 绝对误差绝对值之和 精度分析 |
Accuracy discussion on the two fixed weight methods of variable weight combination model |
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| YANG Jian-wen,YANG De-hong,ZHAO Fu-hong.Accuracy discussion on the two fixed weight methods of variable weight combination model[J].Engineering of Surveying and Mapping,2014(5):29-32. |
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| Authors: | YANG Jian-wen YANG De-hong ZHAO Fu-hong |
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| Institution: | (School of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China) |
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| Abstract: | Based on the exponential curve model and the Poisson curve model, a comparative analysis is made on two kinds of weighting methods based on absolute error sum of squares minimum and absolute error absolute value minimum which is carried out in variable weight combination respectively. Discussion is made on the best method of variable weight coefficient through the equal time interval settlement observation data of a new building. Last, the fitting accuracy of two fixed weight methods proves proximately equal. |
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| Keywords: | variable weight combination model absolute error sum of squares absolute error absolutevalue accuracy analysis |
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