The results showed that the accuracy of combination forecast model is higher than that of each individual predictions model.
结果显示，组合预测模型的精度高于各个单项预测模型；
In this paper, a new algorithm for the estimation of optimum weight coefficients of changeable weight combination forecast model is proposed.
给出了一种变权重组合预测模型权系数估计的新算法。
The results show the self-adapt optimized combination forecast model covering the aging function is better than the other forecast models for gas demand forecast.
结果表明，融入时效函数的自适应递推优化组合预测模型比采用其它预测模型预测的结果更好。
Weight geometric average combination forecast model obtained by weighing several different forecast models, is presented in this paper. A method is given to determine the best weight.
本文提出了由几个不同的预测模型通过加权几何平均的方式进行组合从而得到加权几何平均组合预测模型，给出了确定最优权系数的方法。
The sixth part forecasts the future logistics demand of Shandong Province on the basis of one linear regression, polynomial regression, gray system G(1,1) model and combination forecast model.
第六部分采用一元线性回归、多项式回归、灰色系统G（1，1）模型和组合预测模型对山东省现代物流业未来需求状况进行了中期预测。
In this paper, a new model system is introduced, which synthetically applies time series model, nonlinear regression and combination forecasting model to forecast the change of the market price.
文章通过对一套市场价格预测模型体系的介绍，综合运用时间序列模型、多元非线性回归和组合模型来预测市场价格走势，探索从多角度综合预测市场价格的问题。
The combination forecasting model of generalized weighted proportional means which to overcome the inadequacy of traditional single market forecasting method, was used to forecast market demands.
运用广义加权平均组合预测模型进行市场需求预测，以克服传统的单一市场预测方法的不足。
Given the commonly used food production forecast model, with the aid of a weighted combination of prediction model to determine the combination, the prediction accuracy will be improved.
给出了粮食产量预测的常用模型，通过加权组合，进而确定组合预测模型以提高预测精度。
This article utilizes the combination weighted model to establish our country telecom volume forecast model, and forecasts the telecommunication volume for 2008~2020 with the model.
运用组合加权模型建立了我国电信业务量的预测模型，并对2008～2020年的电信业务量进行了预测。
The results of the cases show that the combination forecasting model in forecast accuracy can be improved. It is of important reference value for the prediction of decision support system.
算例结果表明，该组合预测模型在预测准确性方面能得到改进，对于决策支持系统的预测有着重要的参考价值。
This paper presents an analysis of the time order of the average yield of soybean in Heilongjiang province each year and forecast of yields in next several years by using the model combination.
本文应用该组合模型，对黑龙江省大豆平均亩产量时间序列进行了分析，并预测了今后几年大豆的平均单产。
Based on an example, the basic grey model, other improved models and combination grey model are used to forecast power load and results of all models are analyzed and compared.
以实际算例为基础，应用基本灰色预测模型和传统改进模型以及组合灰色预测模型分别对电力负荷进行了预测，并进行了分析比较。
The weighted average combination model can obtain the best combination model form to promote the forecast precision.
其中加权算术平均组合预测模型能获得最佳的模型组合形式，从而能够有效地提高预测精度。
Combination forecasting model will be applied to forecast the grain production of China, in order to make the result more exact.
尝试将组合预测法应用于我国未来粮食产量的预测，以提高预测精度。
Combination forecasting model will be applied to forecast the grain production of China, in order to make the result more exact.
尝试将组合预测法应用于我国未来粮食产量的预测，以提高预测精度。
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