查询词典 error coefficient

The RBFNN model gave a correlation coefficient (R~2) of 0.8464 and root-mean-square error of 0.1925 for the test set.

两种方法的相关系数(R~2)分别为0.8400和0.8642，相应的均方根误差为0.1577和0.1562。

The correlation coefficient (R2) for the LM and SVM was 0.98 and 0.92, and the corresponding root-mean-square error was 0.99 and 2.77, respectively.

两种方法的相关系数(R2 )分别为0.98和0.92，相应的均方根误差分别是0.99和2.77。

Hierarchical linear modeling is the most frequently used technique for analyzing multilevel data. In this paper, the twelve key issues in multilevel research and/or using HLM software were reviewed, and provided their exact meanings and feasible solutions. The 12 key issues included intraclass correlation coefficient, sample sizes, formation of organizational constructs, centering problems, fixed effect and random effect, estimation methods, goodness of fit index, explained variation, multicollinearity, robust standard error, level one variance equation, and empirical Bayes estimates.

本文针对阶层线性模式在多层次研究上有关於技术、测量与方法论所遭遇的问题，进行文献整理并讨论其实务意涵，并依据使用时机、抽样议题、资料汇总、分析方法、与模式评估与估算等五方面整理出十二项重要议题与解决之道，包括：组内相关系数的意义与判断准则、多层次研究各层的样本数问题、变数聚合成组织层次问题、中心化的意义、固定效果与随机效果的设定、估计法的选择、适配度的比较、解释变异量的计算、多元共线性的分析、强韧性标准误、第一层误差项变异数与实证贝氏估计值的运用。

The correlation determination coefficient (R2) and standard error between the simulated and measured gr...

该研究为进一步探讨温室环境的优化调控提供了理论依据和决策支持。

Methods Using the expressions of regression coefficient and standard error in multiple linear regression analysis, we try to find the statistics to adjust central effects in non-inferiority test in multicenter trials.

借助多重回归中的回归系数及其标准误表达式，试图得到校正中心效应的非劣性检验统计量。

It is shown by analyzing large test data that the empirical formula presented in the paper has higher linearly dependent coefficient, lower average relative error and relative standard deviation compared with the traditional empirical formula of orthoscopic and power function.

试验数据表明，本文提出的经验公式比传统的直线式和幂函数式经验公式的线性相关系数更高，且平均相对误差和相对标准差都低。

We designed Latin hypercube experiment; conducted deterministic simulation analysis for missile accuracy; designed Latin hypercube experiment and made certainty simulation analysis for missile accuracy, thus obtained the simplified functional expressions of missile's impact point deviation and error coefficient of each guidance instrument; built rapid calculation formula of prelaunch compensation quantity.

设计了拉丁超立方试验，并对导弹精度进行确定性仿真分析，得到导弹落点偏差与各制导工具误差系数的简化函数关系式，建立了导弹射前补偿量的快速计算公式。

In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.

为研究特高含水期水驱及聚驱抽油机井管流特性与泵特性，本文针对特高含水期水驱及聚驱井采出液进行了流变性试验，确定了特高含水期油井采出液的性质属牛顿流体；利用不同介质，进行管流特性与泵特性试验，得到了不同工况下杆、管环空流的摩擦阻力和摩阻系数；根据泵特性相关理论和抽油泵受力分析模型，计算了不同参数下柱塞与泵筒间的摩擦阻力，并利用缝隙流与液压卡紧力理论对柱塞与泵筒间的摩擦阻力进行了计算，计算结果与实测值误差在13%以内。

According to the equation of laser transmission in atmospheric turbulence field, has ratiocinated the relations between the system error rate and the luminous intensity fluctuation under the condition of different number of the transmitting antenna and the correlation coefficient.

根据激光在大气湍流场中的传输方程，分析了在发射天线数目和相关系数不同的条件下，系统误码率和光强起伏的关系。

The numerical results show that: the stress distribution on contact surface is relative to the relative velocity of sliding block and friction coefficient, and the maximum relative error of stress can be 100.08%. The non-linear Stribeck friction model can better describe the real situation of contact surface, because of the consideration of impact of the relative velocity to the friction.

研究结果表明：随着接触体相对速度的改变，摩擦因数相应变化，接触面上的应力与位移的分布随之改变，应力最大相对误差达100.08%；Stribeck模型考虑了速度对摩擦因数的影响，更能描述接触的真实情况。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。