Calculation shows that the proposed method can increase the computation speed and raise the accuracy of fitting and forecasting dam displacement.
实例计算表明,此方法大大提高了运行速度,且能够提高大坝位移的拟合和预测精度。
The fitting and forecasting of deformation of an arch dam indicates that the fitting and forecasting data obtained by this model is in good agreement with the measured data.
对某拱坝变形进行了拟合和预测,计算结果与实测值吻合良好。
In this paper, a new model-transmissibility function model with conditional heteroscedasticity is proposed, and its conditions as well as the fitting and forecasting effect have been studied.
本文对残差具有异方差性的传递函数模型提出了一种新的模型——条件异方差传递函数模型,并对建立此类模型的条件和拟合及预测效果进行了研究。
The improvement of fitting and results is obvious through the comparative analysis of 1iilear regression and forecasting in 1998.
经过与线性回归的对比和1998年的预报,在历史拟合率和预报效果上的提高较为明显。
Based on the regression fitting and Markov chain forecast method, the "Regression-Markov" integration model for forecasting road accidents is built in this paper.
在回归拟合函数的基础上,引入马尔可夫链预测理论,建立了道路交通事故的“回归-马尔可夫”复合预测模型。
Results of the test using field data show that the spline fitting can make a better compromise of best fitting and smoothness, and the algorithm performs better in short-term traffic flow forecasting.
经过实测数据仿真试验表明,样条拟合能较好地兼顾最优拟合与曲线光滑度的选择,算法的预测效果良好。
In view of the fact that the partition fitting technology is also very rare in the domestic and foreign quantity forecasting technology, this article USES modern statistical analysis software SPSS13.
鉴于分段拟合技术在国内外数量预测技术中还很少见,本文利用现代统计分析软件SPSS13。
The forecasting results show it have many advantage, such as lower error and higher fitting, and it can be used to GDP forecast.
预测结果表明,利用最小二乘支持向量机进行预测具有误差小、拟合程度高等优点,可适用于GDP的预测。
The paper also provides the judgement criteria of optimal fitting regression equation and optimal forecasting. At last the concept of forecating risk degree is given.
本文还提出了最优选配回归方程和最优预计的判别准则以及预计风险度的概念。
The examples show that the scheme applied to predicting groundwater level regime is practical and efficient, and the BM can ensure high fitting precision, robust forecasting an…
通过利用预测过程中产生的残差信息进行反馈矫正,保证了BM模型劫高的拟合精度和稳健的预测性能,增强了对复杂非线性动态系统的适应性。
The examples show that the scheme applied to predicting groundwater level regime is practical and efficient, and the BM can ensure high fitting precision, robust forecasting an…
通过利用预测过程中产生的残差信息进行反馈矫正,保证了BM模型劫高的拟合精度和稳健的预测性能,增强了对复杂非线性动态系统的适应性。
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