百分误差

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%。

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 % .

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。

At the same time , methods for solving CFM is given with the aim of minimizing sum of percentage error absolutes .

它需要三个平滑参数，在确定最佳α、β、γ值时要进行多次组合试验，以使平均绝对百分误差（MAPE）最小。

It needs three smooth parameters α、β、γ at the best , value want to carry on many combinations to experiment with make equally absolutely 100 cent error margin ( MAPE ) minimum .

计算了119个烃类化合物的临界温度，总百分误差为2.29%。

The average absolute error is 2.29 % based on 119 hydrocarbon compounds .

所测实验结果与其他精密实验所得结果相当吻合，其相对百分误差不足0.4%

The experiment data deviates less than 0.4 % from that obtained by precise experiment .

在0&360℃温变区间内，绝大部分性质的计算百分误差在1%以内。

In 0 ℃ & 360 ℃, the errors for most calculated properties are within 1 % .

证明（8.92），然后用三角函数计算基态能量的百分误差。

Prove ( 8.92 ) and then calculate the percent error in the ground-state energy , using this triangular function .

纯砂岩的校正精度百分误差小于5%；泥质砂岩校正误差绝大多数小于10%。

Correction accuracy for clean sand and most of the shaly sand is less than 5 % and 10 % respectively .

导出了溶液浓度与标尺读数的关系式及标尺读数误差引起溶液浓度测量的相对百分误差的关系式。

The expressions for the concentrations of fluorescent substance and the readings of measure , and for the relative errcr ( % ) of concentration caused by error of readings are derived .

对于蒽、菲、芘、平均预报百分误差从7.0%、8.5%、7.8%分别下降到2.3%、5.0%、3.5%。

The results show that the obtained pure spectra were more suit-able for calibration and the average predictive errors were decreased from 7 % , 8.5 % and 7,8 % to 2.3 % , 5.0 % , and 3.5 % for anthracene , phenanthrene and pyrene respectively .

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%。

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 % .

从对未知参数的猜测值开始，由测试或模拟计算的动力响应用最小二乘法和规则化技巧识别过桥汽车参数，用邻近两次识别参数的百分相对误差（RPE）控制迭代过程的终止。

Starting with an initial guess for the unknown parameters value , the identification can be realized based on least square method and regularization technique from measured responses , which finds the best estimates of parameters by minimizing the RPE ( Relative Percent Error ) between two adjacent iterations .

在百分表的检定中，位移基准非常关键，它是百分表示值误差检定的依据。

In the verification of dial indicator , displacement is critical .

百分表示值误差的改善

Improving of the Value Error about Instrument

相对标准误差（RSD%）、百分标准预测误差（SEP%）和百分标准校准误差（SEC%）被用于衡量神经网络的性能。

The relative standard deviation ( RSD % ), the percent standard error of prediction samples ( SEP % ) and the percent standard error of calibration samples ( SEC % ) were used for evaluating the ability of the neural network .