1) coefficent of exponential smoothing
指数平滑系数
1.
The paper, studies the property of coefficent of exponentiol smoothing, puts forward the method with which coefficent of exponential smoothing can be selected optimallly.
通过对指数平滑系数的研究,提出了平滑系数的优化确定方法;并将优化后的指数平滑系数在我国煤炭产量的预测中得以验证。
2) Smoothness index
平滑指数
1.
Study of T/P rate and smoothness index of valsartan on essential hypertension;
缬沙坦治疗原发性高血压的谷峰比值与平滑指数的研究
2.
Evaluation of irbsartan and indapamide sustained release by different methods of trough/peak ratio and smoothness index calculated in the treatment of hypertention;
不同方法计算谷峰比值和平滑指数评价伊贝沙坦和吲哒帕胺缓释片的降压疗效
3.
Discussion of trough:peak ratio and smoothness index in clinical evaluation of antihypertensive agents;
谷峰比值和平滑指数在降压药物疗效评价中的应用
3) exponential smoothing
指数平滑
1.
Adaptive exponential smoothing model for dynamic prediction;
一种自适应指数平滑动态预测模型
2.
Improved grey model by exponential smoothing for settlement prediction and its application;
基于指数平滑技术的灰色沉降预测模型及应用
3.
Improved grey model by exponential smoothing and its applications in deformation data analysis;
指数平滑法改进灰色模型及其在形变数据分析中的应用
4) smoothing coefficient
平滑系数
1.
After an analysis on the disadvantages of Exponential Smoothing Algorithm(ESA) in the selection of smoothing coefficient from theoretical and empirical perspectives,the author has proposed a new method for selecting smoothing coefficient by ESA to smooth and forecast data.
在理论与实例分析的基础上,分析了用指数平滑法选择平滑系数的不足,提出了指数平滑法在修匀数据和用于预测时的选择思路及方法。
2.
Abstract: The author proved the exponential smoothing theoretically,and also probed into the error estimation against the selection of smoothing coefficient.
本文拟对指数平滑法给出理论上的证明,并对方法当中关于平滑系数选取的误差估计进行探讨,旨在明确此法应用的理论依据,避免实践当中产生误导。
3.
Firstly,the prediction model of exponential smoothing model,the principles of selection in initial smoothing value and smoothing coefficient was illustrated.
首先论述了指数平滑法的预测模型,以及初始平滑值和平滑系数选取的原则。
5) smooth coefficient
平滑系数
1.
In order to improve the learning speed of ANN,a revised BP algorithm is adopted by using smooth coefficient and forgetting coefficient.
为加快神经网络的学习速度,改进BP算法,引入平滑系数和遗忘系数,并取得良好的预测效果。
6) exponential smooth method
指数平滑法
1.
As compared with the traditional exponential smooth method, the improved one of this paper involves smaller and less complicated amount of calculation and computation but enjoys higher calculation accuracy, for the whole computation process can be done by means of a computer software known as MATLAB easily.
在对指数平滑法综合应用分析研究的基础上,根据某铀矿井排风口周边某一农田土壤中近10a的铀(238U)质量比监测数据建立了指数平滑预测模型,对土壤放射性铀(238U)污染进行预测,并对预测结果进行了深入分析,精度达75%以上。
2.
In order to investigate the noise pollution of the city,the exponential smooth method was used to establish the mathematical models based on the history measuring data for forecasting the noise pollution.
调查收集了某城市环境噪声污染监测的历史数据,应用指数平滑法建立了预测城市环境噪声污染的数学模型,并计算了不同平滑系数时数学模型的精度,同时应用建立的数学模型对该市10 n内的噪声污染进行了预测。
3.
In order to investigate the farmland soil heavy metal pollution near a metal mine, the exponential smooth method was used to establish the mathematical models based on the history measuring data for forecasting the heavy metal concentration.
为了研究尾矿库周边农田土壤重金属污染状况,通过调查收集了国内某铅锌矿山尾砂库周边农田重金属含量的历史数据,应用指数平滑法建立了预测尾矿库重金属污染浓度的数学模型,并计算了不同平滑系数时数学模型的精度,同时应用建立的数学模型对该区域10a后的重金属浓度进行了预测。
补充资料:迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中,}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100,如某一地区的值越大,反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂,则: }艺材。一芝Mj、}EIM汀艺。+乏M,(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二,么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中,M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I,j为迁移偏好指数。通过计算迁移偏好指数,可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如,专业技术人员的人数所占比重,各种文化程度人数所占比重等,以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中,M为迁移人数;M,为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条