查询词典 forecasting theory

Then, forecasting return is accomplished. Because of being free of probability distribution suppositions for the sale quantity and the return quantity, such as the binomial distribution and the polynomial distribution, the model is more flexible compared to previous forecasting models.

该预测方法的突出特点是，无需像以往预测模型那样假定回收量和前期销售量符合特定的概率分布(例如多项式概率分布或二项式分布)，因此模型具有较强的通用性。

In order to evaluate service benefit of torrential rain forecasting quantitatively, a mathematical model was build with forecasting accuracy, percentage of coverage, time validity and damage preventability.

暴雨是江苏的重要气象灾害之一，为了对暴雨预报气象服务效益作出恰当的评估，我们设计了预报准确率V、预报服务覆盖率P、预报服务时效率N、可能预防能力Z等四个指标，给出了定量评估暴雨预报气象服务效益的数学模型，并且用实例说明了该模型的实用性和可操作性。

An achievement model of compound forecasting is presented on, which is comprehensive model of quantity of electricity compound forecasting.

根据复合预测思想的设计了实现模型，即基于三指标量的电量复合预测综合模型。

Forecasting results of electricity quantity demand of a certain region show that using the proposed model, the forecasting accuracy can be improved.

某地区需电量的预测结果表明，该模型能显著提高预测精度，适用于电力系统中长期负荷预测。

The original regression forecasting model was rectified by using recursion formula of increasing memory. When the sample units increased, a new forecasting model was got.

在增加新的样本单元资料时，用增长记忆递推公式对原始回归预测模型进行了校正，得到新的预测模型。

Chapter 5 introduces the forecasting effect of the long term runoff forecasting model.

第四章具体介绍了预测模型的数据库设计与实现。

Experiments with sunspot activity data show that the method is better than traditional forecasting approaches and neural network approaches,and can be applied to forecasting of some no...

对年平均太阳黑子数的预测结果表明，该方法比传统的时间序列预测方法和神经网络预测方法的预测精度高，可以很好地应用于某些非平稳时间序列的预测中

In this paper one combined load forecasting method based on fuzzy synthetic evaluation is advanced, in which the experience of the forecasters and the uncertainness of load forecasting are considered adequately.

针对电力系统负荷预测受很多不确定因素的影响，在本文中把模糊综合评判应用到组合负荷预测中，这种组合预测方法充分考虑了预测人员的预测经验和负荷预测的不确定性。

At present,although forecasting research on overall competitiveness of provincial economy is a virgin soil,it has showed the new development aera to economic forecasting research in China.

省域经济综合竞争力是推动区域经济和现代市场发展的重要要素，同所有经济要素一样，既可以进行测度评价，也可以进行预测分析。

In addition, the methods of abnormal data processing based on wavelet theoryare presented dentally and simulated experimentally. The results of Nanjing load forecasting show that the WVNN method possesseshigher forecasting accuracy and better adaptability than artificial neural networkforecasting methods which considers day average and day type.

通过对南京地区电力负荷数据的实验结果表明，较之考虑天气因素和日类型的人工神经网络方法预测方法，采用本文所提出的模型有较高的预测精度与较强的适应性。

Among which is the mindset, perceptions and moralities of those who accept mini- military tasks for economic gains.

其中最重要的是心态，观念和道德的人谁接受小型军事任务的经济收益。

In time course imaging, activity peaked 2 days after coronary ligation.

在时程成像检测，活性峰值在冠脉结扎后2天。