Results 1 to 10 of about 13,877 (197)

Prediction Intervals for ARIMA Models [PDF]

open access: yesJournal of Business & Economic Statistics, 2001
The problem of constructing prediction intervals for linear time series (ARIMA) models is examined. The aim is to find prediction intervals which incorporate an allowance for sampling error associated with parameter estimates. The effect of constraints on parameters arising from stationarity and invertibility conditions is also incorporated.
Snyder, Ralph D.   +2 more
openaire   +1 more source

ARIMA models in load modelling with clustering approach [PDF]

open access: yes2005 IEEE Russia Power Tech, 2005
In distribution system, bus load estimation is complicated because system load is usually monitored at only a few points. As a rule receiving nodes are not equipped with stationary measuring instruments so measurements of loads are performed sporadically. In general, the only information commonly available regarding loads, other than major distribution
Nazarko, Joanicjusz   +2 more
openaire   +2 more sources

The Identification of Multiple Outliers in ARIMA Models [PDF]

open access: yesCommunications in Statistics - Theory and Methods, 2003
The presence of outliers causes biases in the estimation of ARIMA models. In this work we present a procedure for detecting outliers and obtaining a robust estimator of the parameters in univariate ARIMA time series models. There are three main problems in the existing procedures for detecting outliers in ARIMA time series models.
Sánchez, María Jesús, Peña, Daniel
openaire   +2 more sources

Forecasting Crime Using ARIMA Model

open access: yesCoRR, 2020
Data mining is the process in which we extract the different patterns and useful Information from large dataset. According to London police, crimes are immediately increases from beginning of 2017 in different borough of London. No useful information is available for prevent crime on future basis.
Khawar Islam, Akhter Raza
openaire   +2 more sources

The Selection of ARIMA Models With or Without Regressors [PDF]

open access: yesSSRN Electronic Journal, 2012
We develop a Cp statistic for the selection of regression models with stationary and nonstationary ARIMA error term. We derive the asymptotic theory of the maximum likelihood estimators and show they are consistent and asymptotically Gaussian. We also prove that the distribution of the sum of squares of one step ahead standardized prediction errors ...
Johansen, Søren   +2 more
openaire   +2 more sources

Comparison of ARIMA and ARIMA/GARCH Models in EVN Traffic Prediction [PDF]

open access: yesJournal of Research and Development on Information and Communication Technology, 2014
This  paper  focuses  on  building  statistical models  to  capture  and  forecast  the  traffic  of  mobile communication  network  in  Vietnam.  Following  BoxJenkins  method,  a  multiplicative  seasonal  ARIMA model is constructed  to  represent  the  mean  component using the past values of traffic, a GARCH model is then incorporated  to ...
Tran Quang Thanh, Trinh Quang Khai
openaire   +1 more source

Comparison of ARIMA model, ARIMA-BPNN model and ARIMA-ERNN model in predicting incidence of dengue in China

open access: yes
Abstract Background Dengue remains an enduring public health concern across tropical and subtropical regions of China, with a disproportionate burden observed in economically disadvantaged areas. Dengue outbreaks can overwhelm healthcare systems and impede economic development.
Jingyi Guo   +5 more
openaire   +1 more source

Efficient In-Database Maintenance of ARIMA Models

open access: yes, 2011
Forecasting is an important analysis task and there is a need of integrating time series models and estimation methods in database systems. The main issue is the computationally expensive maintenance of model parameters when new data is inserted. In this paper, we examine how an important class of time series models, the AutoRegressive Integrated ...
Frank Rosenthal, Wolfgang Lehner
openaire   +2 more sources

ARIMA Modeling of Noise of Piezoelectric Accelerometer

open access: yesIEEE Access
Piezoelectric accelerometer is well-known for ultra-high sensitivity that is limited by the noise floor. Due to its importance, the modeling of the noise of piezoelectric accelerometers using Autoregressive Integrated Moving Average (ARIMA) is presented herein.
Ghulam Ali, Faisal Mohd-Yasin
openaire   +2 more sources

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