Ex post facto rms forecast error 事后均方根预测误差湿法选矿后的水分容差
Because of super short-term load forecast error, ATC is changing with the adjustment of the generation scheduling by the object function that purchasing charge is least. 考虑到超短期负荷预测偏差的情况下,以购电费用变化量最小为目标函数重新调整发电计划,从而导致电网可用输电能力(ATC)发生变化。
This algorithm employed full-enclosing prediction based on a new high efficient sorting technique and results in a forecast error set after sorting, which could embed data with a low distortion. 该算法使用一种新的基于高效排序的全邻预测算法,经过排序以后形成预测误差集合,可以在很低失真度的情况下嵌入数据。
Consequently, it is also necessary to estimate the forecast error, which may be represented by the standard deviation or the Mean Absolute Deviation ( MAD). 所以,评估库存预测的错误性也是很有必要的。其可用标准偏差或平均绝对偏差(MAD)来表示。
A Study of the Predictive Control of a Boiler Combustion System through the Correction of a Forecast Error 用预报误差校正的锅炉燃烧系统预测控制研究
A multi-criteria likelihood measure is presented within GLUE methodology, which consists of peak forecast error, runoff error, peak time error, and Nash-Sutcliffe coefficient. 针对传感器观测相关的条件下最优分布式检测融合算法较为复杂这一问题,提出了一种基于似然比判决规则的系统性能优化方法。
Offer subject to seller's confirmation ex post facto rms forecast error 卖方确认后有效发盘事后均方根预测误差
The method of calibrating the nonlinearity of the instrument by using nervous network is investigated. The nervous network is trained by recurrence forecast error algorithm. 探讨了采用神经网络校准仪器非线性的方法,并用递推预报误差算法训练神经网络。
The allowable forecast error in design phase was defined and formulae for calculating the risk degrees were derived. 其次给出了防洪预报调度的设计允许极限误差的定义以及水库和下游防洪危险度的定量化计算公式;
The example shows the increase of the precision in the estimated process by selecting the best model steps. It not only conquer the deficiency of using detention inlay technology alone, but also decrease blindness of using forecast error to decide the input model directly. 算例表明,选取最佳的模型阶数能增加预测的准确程度,它不仅克服了仅用延迟嵌入技术的弊端,也降低了直接使用预测误差决定输入模式的盲目性。
This paper analyzes the negative impact of a conventional supply chain on order release volatility and forecast error volatility. Such increase in variation poses tremendous planning and resources utilization problems. 本文分析了传统供应链对订单和预测误差波动的消极影响,这种波动的增加引起了巨大的计划和资源利用问题;
Conditional mean square forecast error formulas and bootstrap procedure dealing with conditional mean square forecast error formulas are given. 给出了条件均方预测误差公式和Bootstrap法条件均方预测误差公式。
Influence of flood forecast error to flood control forecast operation 洪水预报误差对防洪预报调度的影响
Error correction is an important task to real time forecasting. Neural network method was adopted here to build an updating model which predicts the error used in forecast error correction. 在实时校正中运用神经网络方法进行误差预报,并根据研究的具体情况对BP神经网络进行了适当的改进。
Corresponding software was developed and used to forecast the short-term load of a practical power system, and the final forecast error is low. 编制了相应的软件,对某实际电网进行了短期负荷预测,取得了理想的结果。
Finally, the suggested method is applied to the predictable size determination of power load time series, and by means of analyzing and comparing the forecast error, the validity of this method is verified. 最后将所提方法应用于电力负荷时序可预测尺度的确定中,通过对预测误差的分析和比较,验证了新方法的有效性。
The effect of the hybrid forecast approach and those of the single ARMA forecast and RBF network forecast are compared. Calculating their forecast error respectively, we can compare their precision and performance. 分析两种预测方法相结合的混合预测方法的预测效果,与ARMA预测和其他方法的预测效果进行比较,分别计算它们的预测误差值,比较混合预测法与其他方法预测的精度和优劣。
The forecast error indices of neural network with and without phase space reconstruction are compared through computation. Results prove that using phase space reconstruction to split and reconstruct the historical data can improve the precision of load forecast. 通过实例计算,并和不用相空间重构的神经网络的负荷预测算法的各种误差指标的分析比较说明,利用相空间重构对历史数据序列进行拆分或重构可以提高负荷预测的精度。
Th impact of NOAA Satellite Sounding Data on the systematic forecast error of B-Model NOAA卫星探测数据对B-模式分析预报系统性误差的影响
Analysis on Review Assessment and Forecast Error of Railway Noise 铁路噪声回顾评价及预测误差分析
The experiments about a typical piston indicate that this forecast error control method can increase the turning precision clearly. 典型零件的车削实验表明,该方法能有效地提高非圆活塞裙部的加工精度。
However, due to the randomness of wind speed and wind power output forecast error, wind power has brought new demands to the stable operation of the power system. 然而,由于风速的随机性和风电功率输出预测的误差,风电并网给电力系统的稳定运行带来了新的要求。
This thesis presents a continuous prediction model based on the least squares support vector machine, using one step to forecast error and to do long time prediction by iterative methods. 本文针对迭代方法提出一种基于最小二乘支持向量机方法连续预报模型。采用最小化一步预测误差,通过迭代方式进行长期预测准则。
Cumulative abnormal return in capital market is proportional to the earnings forecast error. 此外,资本市场的累计异常回报与盈利预测误差成正比。
Experiment results show that the new prediction method can control the rebound forecast error within a certain range, the compensate measures has been achieved good results. 实验表明,本文采取的回弹预测方法可以将回弹预测误差控制在一定的范围内,采取的补偿措施在零件加工中取得了满意效果。
Finally, we conducted a model of stability analysis and some key good comparison of forecasting methods, found that the model has a more stable bond, comprehensive multi-factor, has strong explanatory power of the market, forecast error is small, the model is applicable. 最后,我们进行了模型的稳键性分析和几种预测方法优良性比较,发现该模型较稳键,同时综合了多方因素,具有较强的市场解释能力,预测误差较小,是可应用的模型。
Focusing on the weight changeable combination forecasting method, the optimal weight changeable combination forecast of a polynomial variable weighting function is proposed, which is suitable for short-term forecast with lower forecast error than other methods but not for the long-term forecast. 主要探讨了变权组合预测方法,提出了具有多项式形式变权函数的最优变权组合预测方法,该方法非常适合近期预测,其预测误差明显低于其它方法,但对远期预测效果非常差。
Securities analyst earnings forecast error and the actual surplus of positive earning skewness. 证券分析师盈利预测偏差和公司实际盈余偏态正相关。
In addition, this paper, the forecast error variance decomposition analysis to analyze the impact of different importance. 另外,本文通过进行预测误差的方差分解分析以此分析不同冲击的重要性。
The results show that the combination forecasting model accurate than the average forecast error of any single prediction model. 结果表明,本文建立的组合预测模型的预测结果比任何单一预测模型的平均预测误差都小。