The space of prediction and application of non-stationary time series were expanded through the combined model of wavelet analysis, gray and time series prediction methods.
将小波分析理论、灰色预测理论和时间序列预测法组合进行需水量的预测,为原始非平稳时间序列的预测应用拓展了空间。
Because stock forecasting is a uncertain, nonlinear and nonstationary time series problem, it is difficult to achieve a satisfying prediction effect by traditional methods.
由于股票预测是不确定、非线性、非平稳的时间序列问题,传统的方法往往难以取得满意的预测效果。
Finally, the results show the methods can effectively come into being regression analysis model of time-series data streams, and fulfill the prediction of future data streams.
最后,试验分析展示了研究结果能够有效地产生时间序列数据流的回归模型和实现数据流未来数据的预测。
Fourthly, as to the time series from stock markets, different detrending methods are studied and their different effects on the prediction are analysis.
第四,主要针对股票市场,考虑两种不同的消除趋势方法,并分析不同的消除趋势方法对预测的影响。
The time series method is one of common methods for forecasting water consumption. The prediction accuracy on water consumption can be guaranteed by the selection of forecast models.
时间序列法是用水量预测的常用方法,其中预测模型的选择是提高预测精度的关键。
[Methods] Exponential curve was employed in studying time series of typhoid and paratyphoid (1997-2003) and incidence rate of year 2004 was predicted based on the prediction model.
[方法]对伤寒、副伤寒发病率时间序列(1997 ~ 2003)采用指数曲线拟合,并对2004年伤寒、副伤寒疫情作出预测。
Using time series analysis methods, in this paper the prediction model of the epidemic encephalomyelitis in Heilongjiang Province were given.
本文用时间序列分析法建立了黑龙江省流脑预测模型。
Prediction methods to the tendency of network opinion evolution are also initially studied and the way to predict network opinion tendency based on time series analysis theories is present.
提出并研究了基于时间序列理论的网络舆论发展趋势预测方法。
Prediction methods to the tendency of network opinion evolution are also initially studied and the way to predict network opinion tendency based on time series analysis theories is present.
提出并研究了基于时间序列理论的网络舆论发展趋势预测方法。
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