查询词典 error model

First of all, we test the stationary of the time series with the Dickey-Fuller's unit roots and D.W. tests. Secondly, we examine thecointegration of the long-run demand for money in China. Thirdly, we construct the error-correction model of the demand for money with M1 and GNP data by means of Grange analysis methods. Finally, we incorporate more factors to construct the cointegration model of the demand for money.

首先，我们运用DW初步判断法及Dickey-Fuller单位根检验检验了相关时间序列的平稳性；其次，运用协整分析中国的货币长期需求，并运用M1与GNP数据建立货币需求的误差自修正模式；最后，我们还将分析包括更多因素的货币需求协整模式。

In this paper a country economy forecast model is built using RBF network, take data between 1991 and 2006 as stylebook data, and use a software called Matlab to check the effect of the model, find the error of forecast is lower than other methods.

本文利用RBF网络建立国民经济预测模型，采用1991-2006年的数据作为样本数据，运用MATLAB对所建立模型的效果进行检测，对经济总量指标预测的误差程度较低。

The verification of the evaluation model shows that the model has a high accuracy, with a total error of only 0.037. S0 it can be applied in the safety evaluation in coal mines.

通过对模型的验证分析，表明该模型具有较高的精度，总误差仅为0.037，可以将其应用到现场安全评价中。

The torque output from four different models are compared with that from anti-lock brake test for the same pressure input, the results show that the error of trilinear hysteresis model is the maximal and that of theoretical model is the minimal.

在相同制动压力输入的前提下，把模型计算结果与试验结果进行了比较。

The model was built by partial least squareregress.Compared to the model using the whole original spectra,the root mean square error of predictionof glycerol gonolaurate and lubricant was improved from 7.9557 to 6.6787,and 0.2383 to 0.1031 respectively.(4)In uninformative variable eliminationalgorithm,the cutoff threshold of UVE is evaluated by adding a noise matrix which size is the same with instrumental response data.

提出的方法应用于月挂酸成分预测的红外光谱和机油分类的可见-近红外光谱中，用偏最小二乘回归建立模型，相比于用全光谱建立的模型，月挂酸的成分预测均方根误差分别从7.9557提高到6.6787，机油分类的成分预测均方根误差从0.2383提高到

The phylogeny and applied prospect of MES are summarized in the paper. The principle of this system is analyzed from the point of view of acoustics. The surveying and filtering technology of auxiliary parameters, sounding data and the theory of image form, backscatter strength data processing, are researched deeply in the paper. The optimal model of velocity of sound is given. For sound ray tracing, some methods of correction of sound ray curve are developed. At the same time, an ideal model of sound ray tracing is proved and given. The GPS technology is applied for the determination of tide, attitude of vessel. Moreover, some methods are given. As an important topic, the systematic error is discussed in the paper. Some filtering methods are researched in this paper. Based on the current methods of image processing, the procedure and methods are tested and given that adapt to sonar image processing.

本文研究的工作是在总结多波束声纳测深系统的发展历史、应用前景的基础上，从声学角度分析了多波束系统的工作原理；对多波束辅助参数的测定和滤波方法、测深数据的滤波方法、多波束声纳图像的形成机理、图像处理以及最终应用等作了比较深入的研究；得出了适合于多波束精密深度计算的最优声速模型和声线改正模型；提出了 GPS 载波相位定位技术用于多波束辅助参数测量的思想、算法，改善了多波束系统的作业模式；系统地分析了深度数据的误差来源和类型，首次将系统误差作为影响测深精度的主要因素给以研究，并给出了削弱系统误差的方法，提高了深度数据的质量；对多波束声纳图像的形成、处理方法进行了细致的研究，给出了适合多波束图像处理的算法和流程，并从理论和实践上对声纳图像的应用进行了比较全面的研究。

Result The average relative error of NIRS model of indigotin and indirubin content were 4.14%and 4.72%.The predicted value nearly was equal to HPLC value. The NIRS model had good predictability to analyze compound indigowoad root granule quality.

结果］复方板蓝根颗粒中靛蓝和靛玉红2项指标人工神经网络模型预测值的平均相对误差分别为4.14%和4.72%，与高效液相色谱法测定值的符合程度很高，该模型具有很好的预测能力。

Using a three dimensional Markov chain, a nonsaturation throughput performance model was proposed for IEEE 802.11 Distributed Coordination Function in fading channel. The impacts of different factors, including bit error ratio, traffic loads and packet length, on the throughput of the system were analyzed using this model.

利用时间离散的三维马尔可夫链，建立了衰落信道中IEEE 802.11 DCF在非饱和状态下的吞吐量性能模型，分析了位错误率、传输负载和分组长度对系统吞吐量的影响。

In view of this problem,a parameter extremum optimization model is developed,in which such error factors as the decaying DC components,nonsynchronous sampling and harmonics are precisely depicted.A new measuring method based on the hybrid genetic algorithmis developed to use this model for finding accurate power system parameters such as the amplitude,phase,frequency and harmonics.

针对这一问题，建立了电力参数极值优化模型，同时对衰减直流分量、非同步采样及谐波等多个误差参数加以精确表示，利用混合遗传算法对该模型进行求解，可得到准确的系统幅值、相位、频率及谐波等电力参数。

According to this research, the root mean square error could achieve ±1.156cm,±1.253cm and ±1.376cm by adopting hyperbolic mode, three times of the distance mode and distance square model. Its precision is good enough for engineering measurement. It provides not only the quicker methods to measure the orthometric height on survey engineer, but also a academic reference on regional geoid model

实验结果发现，经数学模式改正后双曲线模式、距离三次方模式及距离平方模式分别能达到±1.156cm、±1.253cm及±1.376cm合乎工程测量规范之标准，本研究在工程上不仅提供实务上快速测得正高的方法，於学术上亦可提供区域性大地起伏模型相关研究之参考。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。