指数平滑法
- 网络Exponential Smoothing;exponentialsmoothing;Single exponential smoothing
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在对未来转输天然气管网用气负荷预测中借鉴指数平滑法和BP神经网络法相结合的方法,对天然气用气负荷进行建模和预测分析。
This article use reference of method of exponential smoothing and back propagation to modeling and forecast network load of nature gas transportation .
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在计算过程中涉及到销售量的预测,本文综合运用双指数平滑法模块及BP神经网络两种方法进行预测,保证了预测的准确性,从而确保设计出的关键零部件的安全库存量接近实际。
It relates to sales forecasting in the calculation process . this paper uses two kinds of method to calculate including exponential smoothing method and BP neural network , which ensures the design of key parts of the safety stock is close to the actual .
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港口集装箱吞吐量的预测属于经济预测的范畴,预测的方法有很多种,本文列举了两种预测方法,即:三次指数平滑法和灰色方法GM(1,1)。
The forecasting of marine container throughput belongs to economic forecasting , which has many forecasting methods .
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结果:指数平滑法、移动平均法、自相关分析及ARIMA法的1993/2002年患病率预测值年平均相对误差(%)和误差平方和ARIMA模型最小。
RESULTS : The average predicted relative errors and error sum of square of ARIMA from 1993 to 2002 are the smallest .
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预测的步骤为:首先采用Box-Jenkins模型、回归预测法和Brown三次指数平滑法分别对天津市的人力人口比值进行预测,并对预测的效果进行评价。
The forecasting steps is as follow : First , apply Box-Jenkins model , regression forecast model and Brown cubic exponentialsmoothing model to forecast ratio separately and evaluate the forecasting results .
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平滑法的基本思想是移动平均,本文主要研究了季节性指数平滑法和自适应过滤法;拟合法即用最优的模型拟合现有的时间序列数据,本文主要研究了ARMA模型。
The basic idea of smoothing is moving average , and which the paper mainly studied is the Seasonal Exponential Smoothing Method and Adaptive Filtering Method ; The fitting method is that use the best model fit the existing time-series data , this paper mainly studied the ARMA model .
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方法:分别用简单指数平滑法、单参数双重指数平滑法、Holt-Winters两参数双重指数平滑法对黄瓜霜霉病时间序列进行预测,比较预测效果。
Methods : Using simple exponential smoothing method , one-parameter double exponential smoothing method and Holt-Winters ' two-parameter double exponential smoothing method respectively , a time series of cucumber downy disease was forecasted .
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本研究选择ARIMA模型法和指数平滑法确定抑郁症患者的抑郁严重程度和焦虑水平的发展趋势,研究的目的是通过ARIMA模型分析来了解其动态的自相关关系,并对未来的变化进行预测。
The main purpose of thesis study is to find the evolution trend of depression and anxiety level of depression patient by ARIMA model and exponential smoothing , to understand the dynamic autocorrelation of the variables by ARIMA model , and to forecast the variation of the future condition .
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通过对实际应用效果评价证明,应用SEGM法预测城市时用水量精度比常用的指数平滑法等方法要好,适用于在线预测。
The evaluation of practical application results testifies that SEGM method applies to the online forecast because it has the better precision for urban water consumption forecasting than that of exponential smoothing method and others .
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在对道路交通状态判别方法的研究上,重点分析了经典的加州算法、McMaster算法、指数平滑法、标准偏差法和改进的DS-ANN算法、基于移动检测器的判别算法,并对算法作出了比较分析;
On the research basis of the identification method of road traffic conditions , the paper presents many kinds of algorithm , such as McMaster algorithm , improved DS-ANN algorithm and so on , and analyzes the advantages and shortages of them .
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建立Holt-Winter预测模型,将具有线性趋势、季节变动和随机波动的时间序列进行分解研究,并与指数平滑法相结合,分别对长期趋势、趋势的增量和季节波动做出估计。
Establishment of the Holt-Winter forecast model could make decomposing study on time series which has linear trend , seasonal change and random wave , and separately estimate the long-term trend , increase of trend and seasonal wave with combining the exponential smoothing .
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基于改进指数平滑法的岩体边坡变形预测
Prediction of rock slope deformation based on optimized exponential smoothing method
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指数平滑法及其应用探讨
Approach to the method of exponential - smoothing and its application
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指数平滑法在服装消费水平预测研究中的应用
Application of Exponential Smoothing Method to Predict the Clothing Consumption Level
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指数平滑法在边防情报分析中的应用
The Application of the Exponential Smoothing Methods on Border-control Intelligence Analysis
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指数平滑法在地下水水质预测中的尝试
An attempt at groundwater quality forecasting by exponential smoothing method
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利用模糊理论对一次指数平滑法的改进
An Improvement of Single-Index Moving Method with Fuzzy Set Theory
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利用指数平滑法预测经济变量
The Application of Exponential Smoothing Method to Predict Economic Variables
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二次指数平滑法中确定初始值的简便方法
Simple Method of Determining the Initial Value in Secondary Exponential Smoothing Method
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三次指数平滑法预测大连港货物吞吐量
Dalian Port Throughput Capacity of Goods Forecast by Cubic Exponential Smoothing Method
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改进的季节性指数平滑法预测空调负荷的实例研究
Example Research of Advanced Exponential Smooth Method to Predict Air Conditioning Load
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季节性指数平滑法在城市用水量预测中的应用研究
Application Study of Season Character Exponential Smoothing in Using Water Forecasting of City
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基于指数平滑法的装备维修器材需求量预测
Requirement Forecast of Maintenance Equipment Based on Exponential Smoothing
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开采沉陷动态参数预计的三次指数平滑法
Prediction of Dynamic Mining Subsidence Parameters by Exponential Smooth
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本文介绍一个用指数平滑法开发的电量预测系统。
In this paper an electricity forecasting system by exponent-smoothing method is presented .
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布朗单一参数指数平滑法的推广
Generalization of the Brown Single Parameter Exponential Smoothing Method
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指数平滑法改进灰色模型及其在形变数据分析中的应用
Improved grey model by exponential smoothing and its applications in deformation data analysis
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应用指数平滑法预测医院的入院人次
Forecast the Number of Inpatients with Exponential Smoothing Method
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三次指数平滑法在太仓港吞吐量预测中的应用
Three exponential smoothing method in Taicang Port Throughput Prediction
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指数平滑法增益系数α的确定
Determination of gain factor α with exponential smoothing