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grey model
相关语句
  灰色模型
    A Prediction of Fujian Agricultural Output Value by Use of the Grey Model GM(1,1)
    应用灰色模型 GM(1,1)预测福建省农业产值的发展趋势
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    Fuzzy Control and Grey Model Mixed Inference Mechanism and Its Applications
    模糊控制与灰色模型混合推理机制及其应用
短句来源
    A New Method of Improving the Precision of Grey Model
    提高灰色模型精度的一种新方法
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    APPLICATION OF GREY MODEL TO MACHINERY FAULTS PREDICTION
    灰色模型在机械故障预测中的应用
短句来源
    A Grey Model and Prediction of the Vacuum Distilled Furnace for Separating Sn-Pb Alloy
    Sn-Pb合金真空蒸馏分离炉的灰色模型与预测
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  “grey model”译为未确定词的双语例句
    APPLICATION OF GREY MODEL ON LONG RANGE FORECASTING OF RUNOFF
    灰色预测模型在径流长期预报中的应用
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    Also, based on the combining forecasting theory, an integrated ANN and grey model were be defined, which supplies an effective method for further improving prediction accuracy.
    并根据优选组合预测理论将灰色钱差预测与神经网络预测结果有机结合,给出了这一方法在材料性能预测中的应用实例,为进一步提高预测精度提供了有效的方法。
    PREDICTION OF ORIGINAL RELIABILITY PARAMETER OF POWER SYSTEMS BY AN IMPROVED GREY MODEL
    电力系统可靠性原始参数的改进预测
短句来源
    The Application of Grey Model for the Prediction of Social Event
    灰指数模型在事件发展趋势预测中的应用
短句来源
    A fuzzy decision making mechanism of the grey model 's prediction step is applied to improve the performance of fuzzy controller.
    针对灰色预测步长对控制性能影响进行了详细分析,在此基础上,首次提出一种基于预测步长自调整的灰色预测模糊控制器。
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  grey model
Avoiding the Eddington approximation the remaining simplifications in the basic equations are discussed, the generalized dispersion relation is analysed, and some wave properties in a grey model are studied.
      
The proposed method cannot only enhance the prediction accuracy of the original grey model, but can also solve the jump data forecasting problem something for which the original grey model is inappropriate.
      
Modified Grey Model for Estimating Traffic Tunnel Air Quality
      
This study compared three forecasting methods based on their accuracy or absolute errors in forecasting air pollution in a traffic tunnel: the Grey model (GM), the Crank-Nicholson implicit scheme model, and the forecasting combination model (FCM).
      
In this study, grey model, both GM(1,N) and GM(0,N) models, is applied to determine the priority of technical measures by evaluating the impact of each technical measure in the system.
      
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The method for establishing the group of grey models is put forward according to the theory of the establishment of grey models in this paper. Using a computer, the comparison of a series of the models was made and the best one that was the most suitable for the experimental data was obtained. The grey models were used for calculating resistance coefficient of the duct and the results were satisfying. The theory of the establishment of grey models was of great use in the experimental...

The method for establishing the group of grey models is put forward according to the theory of the establishment of grey models in this paper. Using a computer, the comparison of a series of the models was made and the best one that was the most suitable for the experimental data was obtained. The grey models were used for calculating resistance coefficient of the duct and the results were satisfying. The theory of the establishment of grey models was of great use in the experimental data processing.

本文根据灰色建模理论,提出了灰色模型群建模法。其实质是利用计算机对一系列拟合模型进行比较,输出一个最优模型。文中,通风管道风阻计算的灰色建模结果令人满意,说明灰色建模理论在实验数据处理中是一个有力的工具。

The purpose of tendency correlation analysis is to investigate the system dynamic behav-iors and their“similarity”and “closeness. ”It is a cornerstone of dynamic grey modelling. Based on the tendency correlation analysis and with the useful information in time seriesmade full use of,tendency correlation is a. measure of the relationships among various dy-namic behaviors in a system,A grey model of system cloud,SCGM(1,h)d,developed ac-cordingly exhibits satisfactory accuracy.

趋势关联度,是在趋势关联分析基础上,充分挖掘、利用观测时序中的有用信息,所建立的系统不同动态行为之间关系的一种测度。它是最佳灰色建模的有效工具。

In view of the non-stationarity and periodically of electric load, the auther first sets up the grey model or adjustable grey model for the analysis of the load trend. By comparing grey model values with the original ones, the auther gets a series of errors,then by means of the secondary data, the auther further applies autoregressive model, fourier model or artificial neural network model to the adaptability modification of the errors resulting from the grey model....

In view of the non-stationarity and periodically of electric load, the auther first sets up the grey model or adjustable grey model for the analysis of the load trend. By comparing grey model values with the original ones, the auther gets a series of errors,then by means of the secondary data, the auther further applies autoregressive model, fourier model or artificial neural network model to the adaptability modification of the errors resulting from the grey model. Taking as an example show that these methods is efficient. The forecasting accuracy is more accurate than that of conventional methods.

本文针对电力负荷变化的非平稳性和周期性,采用灰色模型,可调灰色模型分析用电负荷的趋势项并与历史负荷比较得一系列残差,然后应用自回归模型,傅氏模型,人工神经网络模型进行修正以提高精度。用一系列组合模型分别用于不同场合和要求下的负荷预测,并在微机上开发软件,通过实例计算,效果良好,具有一定的应用价值

 
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