查询词典 forecasting

The results indicate that the model is feasible to forecast the flood discharge at the Hankou Station, in the middle reach of the Yangtze River if the forecasting p...

结果表明，在延长预见期为5 d的情况下，应用神经网络对长江中游汉口站流量进行预报是可行的。

An augmented matrix is therefore given, of which the number of dimensions is determined by adding the observed data for l time past together, and the forecast data after augmentation are taken as the input variables in BP neural network. Then, a forecasting model is developed on the basis of DPCA-BP neural network, with its architecture described.

通过计算前l时刻数据确定增广矩阵的维数，并把得到增广后的预测数据作为BP神经网络的输入变量，建立了基于DPCA-BP神经网络的预测模型，给出了模型结构。

Stationary and nonstationary processes, including ARIMA processes. Estimation of process mean and autocovariance function. Fitting ARIMA models to data. Statistical tests for white noise. Forecasting. State space models and the Kalman filter. Robust time series analysis. Regression analysis with correlated errors. Statistical properties of long memory processes.

静态和非静态过程(包括 ARIMA 过程)，均值和时间序列分析：自协方差估计，用 ARIMA 模型拟和数据，白噪声序列的统计检验，预报，状态空间模型和 Kalman 过滤，时间序列分析的稳健性，残差具有相关性的回归分析。

A vector autoregression model of hourly wind speed and its applications in hourly wind speed forecasting.

小时风速的向量自回归模型及应用。

Practical results show that the proposed method lowers both average error and maximum error and improves forecasting precision.

对预测结果的分析表明，多点外推法不仅减少了平均误差，也使最大误差降低，能有效提高预测精度。

Using Data Mining decision tree category establish attacking forecasting rules as adjust monitoring averment if there is a DoS appearing, or improves misused detection inaccuracy.

并利用资料探勘中决策树分类法，建立预测法则，用以判断在监控环境中是否有阻断服务攻击的出现，或是进一步补强误用侦测的缺点。

First, commonly used methods of flight segment volume forecasting are systematically elaborated, Then theory basis of support vector machine and its principle are introduced, support vector machine model is inferred, the support vector machines algorithm is studied.

首先，系统地介绍了航空运量预测中常用的预测方法，并对几种常用方法的特点进行了分析比较。

According to the statistic model of piezometric level, model of piezometric level monitoring on the basis of support vector machines is founded. Comparing with traditional statistic model, the new model is more accurate and has better extension forecasting capability.

此后，针对统计模型的不足之处，引入了支持向量机方法的相关理论，建立了基于支持向量机方法的测压管水位监测预报模型，与统计模型相比，结果拟合精度更高，预测趋势更加符合实际情况。

On such bases, we apply logistic regression to reach a forecasting model for those ST companies before the year of special treatment and we also estimate the cut-off point of the model based on Bayes formula.

我们相信，这一判别模型不仅是对本文研究结论的一个总结和具体应用，而且对于监管部门、投资者、债权人、公司管理层均有一定的借鉴作用。

If results are any indication, the conclusion must be that market forecasting is prone to failure.

如果最后的结果有什么暗示，那么结论肯定是预测市场容易失败。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。