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- time vary ARMA model 时变ARMA模型
- Combined with certain type time series recount multiplicity model and random type ARMA model, establish the time series model of the death rate in Chongqing urban area. 应用确定型的时间序列分解法乘法模型与随机型的ARMA模型相结合,建立重庆市主城区人口死亡率的时间序列模型。
- Several criteria such as AIC and SIC are usually used in ARMA model selection. AIC与SIC等准则函数方法是ARMA模型选择过程中经常使用的方法。
- Abstract: In this paper we analyse some predictation approaches of random time series and by using ARMA model we predict effectually the weighted aggregative indexes of securities market in Shanghai and Shenzhen. 文摘:分析了随机时间序列的统计预测方法,并利用ARMA模型对深沪市未来短期指数进行了有效预报。
- The optimality of two-stage state estimation in the presence of ARMA model random bias is studied. 考虑了具有ARMA模型随机偏差的两段卡尔曼估值器的最优条件问题。
- The specific scouring procedures, chemicals, temperature and time vary with the type of fiber, yarn and cloth construction. 煮练工艺、化学助剂、工作温度、煮练时间随纤维、织物结构的不同而变化。
- The ARMA model parameters of lung-thorax system from lung sound were estimated by the higher-order cumulants. 应用高阶累积量方法,从肺音信号辨识肺胸系统的ARMA模型参数。
- The ARMA model is constructed with the GDP data of Guangyuan downtown between 1978 and 2004. 利用广元市市中区1978年到2004年GDP数据,构建了广元市市中区时间序列趋势的ARMA模型。
- Hemiplegia is passable in have a headache hour, number is counted continuously after disappearing day or several weeks of time vary. 偏瘫尚可在头痛消失后持续数小时、数天或数周时间不等。
- The Prony complex exponential model is converted into the ARMA model, and the Prony identification algorithm(PIA) is developed in this paper. 本文把Prony复指数模型转换为ARMA模型,并建立了Prony识别算法(PIA)。
- However, when the order of ARMA model is very high, to compare every candidate model's criterion value is computationally infeasible. 但是,当模型的阶数很高时,无法计算并比较每一个备选模型的准则函数值。
- Cut off times vary by locations. Please contact Customer Service for details. 截件时间因地点不同而不同,详情请联络客户服务部门。
- The sum of forecast values of the ANN model and the ARMA model is considered as the optimal forecast value of future product consumption. 将两个模型的预测值之和作为产品需求量的优化预测值。
- Keywords Time series analysis;Strategy;ARMA model; 时间序列分析;攻略;ARMA模型;
- To circumvent such limitations, an EMD and time varying VARMA model based method is proposed. 针对上述限定,提出了基于EMD和VARMA模型的信号处理方法。
- The result shows that a second order ARMA model gives the best fit to the data in terms of sum of squares of prediction errors and in terms of the whiteness of the residual. 两种算法都进行了仿真,结果表明:从预测偏差的平方和及残数的空白度来看,二阶的ARMA模型会产生最佳的数据适应度。
- In the second step, an RBFNN is developed to model the residuals from the ARMA model.The final forecast value combines both outputs of ARMA model and RBFNN. 采用ARMA模型对汽车销量趋势进行初步线性预测,利用RBF神经网络对线性预测的残差建模,得到非线性预测,两部分预测输出和为总的预测值。
- Note that in all the samples below, the actual time varies widely and randomly. 注意在下面所有的例子中,真实的时间变化很大,都是随机的。
- Pick up cut off times vary by locations. Please contact Customer Service for details. 截件时间根据所在地略有不同,详情请查询。
- At first, the basic idea of the ARMA model method is described, the corresponding mathematics model is established and a realizable technique which is used is discussed. 文章首先叙述了ARMA模型法的基本思想,建立了数学模型, 讨论了一种可实现的技术。