EWA:指数加权平均
“指数加权平均”(Exponentially Weighted Average,缩写为EWA)是一种广泛用于统计学及相关科学领域的常用计算方法。EWA不仅便于快速书写和引用,还能有效处理时间序列数据,通过赋予近期数据更高权重,从而更灵敏地反映趋势变化。该方法在金融分析、信号处理及机器学习等学科中具有重要应用价值。
Exponentially Weighted Average具体释义
Exponentially Weighted Average的英文发音
例句
- Exponentially weighted moving average model
- 指数加权移动平均数模型
- This paper studies that the bullwhip effect of order releases and the amplifications of safety stock arise within the supply chain even when the demand model is ARIMA ( 0, 1, 1 ) and the forecast method used is a simple exponentially weighted moving average.
- 研究了发生在供应链中订货的牛鞭效应和安全库存放大问题,其需求模型是ARIMA(0,1,1),而所用的预测方法是简单的指数平滑。
- A stochastic model of the random early detection ( RED ) queue length and its exponentially weighted moving average ( EWMA ) value is developed based on stochastic analysis.
- 运用随机分析的方法建立了一个关于RED(randomearlydetection)队列长度及其指数加权滑动平均值(exponentiallyweightedmovingaverage,EWMA)的随机模型。
- In the research of multivariate statistics process control, the Multivariate exponentially weighted moving average ( MEWMA ) control chart with the time domain features is more efficient than the T ~ 2 control chart for detecting small shifts in the multivariate quality process.
- 在多元统计过程质量控制问题的研究中,MEMWA(多变量指数加权滑动平均)控制图中增加了监测的时域特征,相对T2控制图能够更为有效地监控多元质量过程中发生小偏移的情况。
- In this Chapter, we propose a new single control chart which integrates the exponentially weighted moving average ( EWMA ) procedure with the likelihood ratio test for jointly monitoring both the multivariate process mean vector and the covariance matrix.
- 在本文中,我们把似然比检验的思想推广到多元的情形,提出了用于同时监控过程均值向量和协方差阵的综合控制图。
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