| 基于不确定度的最小一乘法在企业施工定额消耗量预测中的应用 |
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| 引用本文： | 王首绪,孙艺.基于不确定度的最小一乘法在企业施工定额消耗量预测中的应用[J].长沙交通学院学报,2010,26(4):70-75. |
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| 作者姓名： | 王首绪 孙艺 |
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| 作者单位： | 长沙理工大学交通运输工程学院,湖南长沙410004 |
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| 摘 要： | 基于企业施工定额原始数据的特点和现有施工定额原始数据处理方法的实际情况,采用最小一乘法和最小二乘法理论,并引入不确定度的概念,建立适合贫数据的企业施工定额数据计算模型.对最小一乘法与最小二乘法分别求解可知,最小一乘法的结果更为精确.该结果为定额测时过程中未观测到的某些条件下消耗量的推算提供参考.
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| 关 键 词： | 施工定额 不确定度 最小一乘法 最小二乘法 |
Application of construction quato consumption measurement based on the uncertainty of LAD forecasting |
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| WANG Shou-xu,SUN Yi.Application of construction quato consumption measurement based on the uncertainty of LAD forecasting[J].Journal of Changsha Communications University,2010,26(4):70-75. |
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| Authors: | WANG Shou-xu SUN Yi |
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| Institution: | (School of Traffic and Transportation Engineering,Changsha Universityof Science ＆ Technology,Changsha 410004,China) |
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| Abstract: | To establish a calculation model of enterprise construction quota data on poverty data,the characteristics of enterprise construction quota original data are taken into account,the current processing method of construction initial data,the LAD and least absolute deviations are brought up,which include the concept of uncertainty.Through modeling basing both least absolute deviations mathematic and least square method respectively,it is proved that least absolute deviations is more accurate.Then,it can provide a scientific and sound method to get unobserved consumption in some special situations. |
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| Keywords: | construction quota uncertainty least absolute deviation least squares |
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