When the maximum likehood estimation of relative difference is perform ,the denominator of relative difference may be zero.
在对2×2列联表的相对差进行极大似然估计时可能会出现相对差分母为零的情况,从而使相对差的估计出现无限大的偏差并且方差无限。
Linear combination forecast based on relative error criterion;
基于相对误差的线性组合预测研究
The model is used to analyze the relative error of forecast and to forecast the exploitable geological ore reserves of Miaogou Mine in 2007.
通过运用数理统计中的回归分析方法确立采出矿石地质矿量预测数学模型,分析预测相对误差,并对2007年采出矿石地质矿量进行预测。
The calculation methods of pH and relative error were studied in different acid-base solution.
根据相对误差的要求,研究不同酸碱平衡溶液中pH值的计算方法,并根据酸碱的强弱和浓度及离解常数的大小,进行近似处理,可得到简便计算pH值的公式。
Study on Controlling Principles and Methods of Halftone Dot Accretion and Relative Contrast Control;
网点增大和相对反差的控制原理与方法研究
The different charecteistics of the prints with different screen rulings are detail analysed,such as solid density,dot size,light spectrum,chromaticity of Lab,relative contrast,and dot gain.
分析了不同加网线数下印刷品在实地密度、网点面积、光谱值、色度值、相对反差、网点扩大等方面的差异及其原因,提出了进一步提高印刷质量的方法,从而获得了对印刷企业实施规范化、标准化生产,提高和稳定产品质量具有指导和实用价值的结论。
The meaning of four parameters in printing quality control was introduced,of which were solid density,dot gain,relative contrast,and trapping percentage.
阐述了实地密度、网点扩大、相对反差、叠印率4个参数在印刷质量控制中的意义,设计并印刷了CTP测试版样张,对随机抽样的22张样张的4个参数作了测试与计算,用数据信息表达了CTP印刷品质量状况,供CTP印刷相关人员学习和参考。
When applying this method for the trehalose samples, the relative error is not more than 3.
建立了用DNS法定量测定海藻糖的新方法,并用该法对海藻糖对照品和海藻糖生产中的中间样品进行了测定,得出其相对偏差≤3。
Compared with soil CRM certificate,a better determination result can be obtained with relative error being between 0 ~ 10% except sodium oxide and magnesium oxide.
采用一种新的X射线荧光UNIQUANT软件分析方法,分析了土壤标准物质和未知样品,土壤标准物质的分析结果与标准值较吻合,除氧化钠和氧化镁的相对偏差较高外,其余氧化物的相对偏差在0～10％之间。
According to the 1/2 standard of American Clinical Laboratory Improvement Amendment (CLIA,88),the relative bias of the reference analyzer and other assessed analyzers were determined.
根据美国临床实验室改进修正案(CLIA,88)标准(1/2)来判断测试仪器与参比仪器的相对偏差,是否符合判断标准。
At the same time,the paper gives an illustration of this new model and compares the relative deviation between EIV prediction model and Multivariate Regression Prediction Model,and shows that the EIV prediction has better precision of prediction.
对一类不独立变量含误差模型进行了探讨,建立了相应的模型,用极大似然方法给出了参数的估计;考虑了此模型的实例应用,并从相对偏差上将独立变量含误差模型与不独立变量含误差模型的结果进行比较,揭示了不独立EIV模型的先进性与较好的预测精度。
This paper tries to find out the changing regularity of relative deviation by calculating the settlement quantity of foundation soil according to two different choosing value standards and comparing them with each other.
本文主要是用这两种不同取值标准计算地基土的沉降量并进行比较 ,得出相对偏差的变化特点。
fractional error
相对误差, 部分误差
age absolute relative error
平均相对误差绝对值
relative tolerance between forward and backward in indicating value
示值进回程相对误差
Compare this method with AAS, its relatively error were less than 5%.
与原子吸收法比较,相对误差小于5%。
Calculation the Relative Error of Determination in Mixed Acid(OR BASE);
混合酸(碱)测定结果相对误差的计算
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
The turbidity experiments show that the relative error is not more than 3% with this turbidity meter.
通过实验分析，结果表明相对误差不大于3%。
This method is especially accurate in damping identification with the relative error less than 1% to theoretic values.
尤其在阻尼比的识别上，相对误差在1%以下。
The detective limits are as low as 20ng/μl. The relative errors aro about10%.
检测极限约为20毫微克/微升,相对误差小于10%。
The Relative Error on Solving Schrdinger Equation of Wave Function of Particle Spin with Symposium;
粒子自旋薛定谔方程辛算法解的相对误差研究
An Unconditionally-Stable FDTD method with Low Relative Error
一种具有较小相对误差的无条件稳定FDTD算法
Influence of Secondary Phase Error to Image Quality for FMCW SAR
二次相位误差对FMCW SAR成像质量的影响
Influence of Linear Phase error to image Quality for FMCW SAR
线性相位误差对FMCW SAR成像质量的影响
The Effect of Uncertainty in Defocus Distance on the Wave-front Reconstruction with the Phase-diversity Algorithm
离焦量误差对相位差法波前重构的影响
Phase Sensitivity Study on D-InSAR for Reference DEM and Orbit Error
D-InSAR中参考DEM误差与轨道误差对相位贡献的灵敏度研究
The denoise image has little error compare to original image and the effect of denoising is distinct.
去噪图像相对于原图像误差小,去噪效果明显。
The dissertation analyzed in brief the influence of all kinds of error to ATI.
研究了频率同步误差对干涉相位及测速的影响；
Analysis and comparison of errors in several phase stepping algorithm with an arbitrary step
几种任意步距步进相移算法的误差分析与对比