percentage error
- 百分比误差;百分率误差
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I want you to appreciate that this is a very small percentage error .
不过我希望各位注意到,这其实是也是一个很小比例的误差了。
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Modeling GM ( 1,1 ) based on the minimum of mean absolute percentage error
基于平均相对误差绝对值最小的GM(1,1)建模
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The results show that the percentage error between the model and the experimental is not more than 10 % .
结果表明所提出的半经验模型计算结果与实验误差不超过10%。
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At the same time , methods for solving CFM is given with the aim of minimizing sum of percentage error absolutes .
同时,还给出了百分误差绝对值最小为目标的组合预测模型及权系数求解方法。
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A simulation for a nonlinear function approximation is presented and the experimental results show that the proposed algorithm can generate a more compact structure with a lower average percentage error .
非线性函数逼近的实验结果表明,所提出的方法能获得更精练的网络结构和更小的误差,从而验证了本文方法的有效性和可行性。
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Compared with experimental result , the nonlinear numerical value is quite approximate to it . The percentage error of the amplitudes ( peak to peak ) is about 6 % .
经过与国外实验对比,可得出考虑非线性阻尼力的平板振幅值非常接近实验值,振幅峰-峰值误差仅为6%,且优于线性动力学的分析结果。
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The results show that use the time series model based on robust estimation to predict wind power , the forecast percentage error of most points is under 5 percent , except one point of 10.1 percent .
结果表明,基于稳健估计的时间序列建模进行预测的误差大多数都在5%以内,只有一个点达到10.1%,明显比常规的时间序列建模预测的误差要小。
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The process can be divided into two steps . First , the error matrices of structural system are figured out by matrix method , and the modeling errors can be located by defining percentage error .
将模型修正分为两步,首先用矩阵型方法求出系统质量、刚度矩阵的误差矩阵,通过定义的误差百分比确定建模误差位置;
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By using this method , 298.15K dilute partial molar volumes of 222 organic solutes in water were calculated . The average error is 1.18 cm ~ 3 / mol and the average percentage error is 1.25 % .
用基团贡献法计算222种有机溶质298.15K在水中无限稀偏摩尔体积,平均误差为1.18cm~3/mol,平均百分误差为1.25%。
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The calculation results of certain military helicopter and simple object show that the percentage error for simple object can be controlled within 5 % , and for complex object can meet the engineering requirement by controlling the total polygons and random points reasonably .
对某型武装直升机和简单形体的计算表明,通过合理划分面元数和选取随机点数,简单目标计算误差可以控制在5%以内,复杂目标可以控制在工程精度要求内。
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By choosing the model parameter properly , the mean absolute percentage error is only about 5.61 % , if the absolute error is less than 2 ℃, the rate of accuracy comes to 95 % . This shows the validity of the SVMS forecast system .
通过适当选择模型参数,其平均绝对百分比误差只有5.61%,在绝对误差温度小于等于2℃的条件下,预测的准确率达到了95%,显示出所建立的支持向量机模型预测系统的有效性。
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Factor analysis-UV Spectrophotometry was used simultaneously to determine the contents of a three-component system consisting of pyrocatechol , resorcinol and hydrochinone . The method was simple and fast , with a recovery of 93 . 52 ~ 107 . 20 % and an average percentage error of 2.17 % .
本文运用因子分析-紫外分光光度法同时测定邻苯二酚、问苯二酚和对苯二酚三组份含量,方法简单快速,回收率93.52~107.20%,平均百分误差2.17%。
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This formula gives a very small percentage of error .
这个公式的误差率很小。
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On The Variation of Overhead Line Percentage Sag Error
架空线的弛度误差变化特性
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Results Group B had higher percentage of error making in nursing data collection , nursing diagnosis and nursing planning than Group A.
结果从护理资料收集、护理诊断及护理计划等方面,B组发生错误的百分率均高于A组,并以护理诊断最为明显。
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The mean overlap values were 69 % and 63 % for the first and second data sets , respectively , the mean percentage volume error value is 21 % . The segmentation method is better than other segmentation methods .
经过测试,第一个数据集的平均overlap值是69%,第二个数据集的平均overlap值是63%,两个数据集的平均错误体积百分比为21%,优于文献中公布的分割方法。
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Experimental results showed that after Gamma correction , the luminance outputted by the LC projector accorded perfectly with the theoretical power function . The percentage luminance error was within-1 % ~ 1 % , and the outputted image recurred every gradation .
测试结果表明,经Gamma校正系统校正后的投影机输出光强曲线符合理想的幂指数函数,且光强误差在-1%~1%以内,能够重现输出图像的各个层次。
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The percentage of the error between the practical value of the electric field and the standard value of the electric field is calculated , according to this whether there is defect in the composite insulators can be estimated .
由现场实测电场值与标准值比较所得差值曲线即可判别是否存在劣质绝缘子。