نتایج جستجو برای: exponential weighted moving average model
تعداد نتایج: 2582869 فیلتر نتایج به سال:
In this paper, we want to present a new method for ranking exponential fuzzy numbers with use weighted average and weighted width in TRD distance. Weighted average and weighted width of exponential fuzzy numbers combines in TRD distance for ranking method. A simpler and easier approach is proposed for the ranking of generalized trapezoidal fuzzy numbers. For the validation the results of the pr...
conclusions addressing and removing explainable patterns of syndromic data on meningitis is necessary to timely and accurately detection of meningitis epidemics. it was concluded that decomposition methods had better performance compared to the model based ones. background meningitis is one of the most disturbing infectious diseases due to mortality, morbidity and its ability to cause epidemic....
Previous research for short-term traffic prediction mostly forecasts only one time interval ahead. Such a methodology may not be adequate for response to emergency circumstances and road maintenance activities that last for a few hours or a longer period. In this study, various approaches, including naïve factor methods, exponential weighted moving average (EWMA), autoregressive integrated movi...
Aims: Based on the income data of urban and rural residents in China from 1998 to 2021, gap variables were constructed, combination prediction method was used predict between China.
 Methodology: Grey model GM (1,1), Holt-winter seasonless exponential smoothing autoregressive moving average ARIMA construct an order weighted arithmetic mean induced by IOWA with minimum sum error squares. Th...
Cardiovascular magnetic resonance (CMR) perfusion data are suitable for quantitative measurement of myocardial blood flow. The goal of perfusionCMR postprocessing is to recover tissue impulse-response from observed signalintensity curves. While several deconvolution techniques are available for this purpose, all of them use models with varying parameters for the representation of the impulse-re...
In this study, I investigate the necessary condition for the consistency of the maximum likelihood estimator (MLE) of spatial models with a spatial moving average process in the disturbance term. I show that the MLE of spatial autoregressive and spatial moving average parameters is generally inconsistent when heteroskedasticity is not considered in the estimation. I also show that the MLE of pa...
This paper proposes a novel simultaneous localization and mapping (SLAM) approach, namely Attention-SLAM, which simulates human navigation mode by combining visual saliency model (SalNavNet) with traditional monocular SLAM. Firstly SalNavNet is proposed. In SalNavNet, we introduce correlation module propose an adaptive Exponential Moving Average (EMA) module. These modules mitigate the center b...
This paper considers the problem of estimating the parameters of two-dimensional moving average random elds. We rst address the problem of expressing the covariance matrix of a moving average random eld, in terms of the model parameters. Assuming the random eld is Gaussian, we derive a closed form expression for the Cramer-Rao lower bound on the error variance in jointly estimating the model pa...
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