نتایج جستجو برای: arima method

تعداد نتایج: 1632766  

2005
Bo Zhou Dan He Zhili Sun

The predictability of network traffic is a significant interest in many domains such as congestion control, admission control, and network management. An accurate traffic prediction model should have the ability to capture prominent traffic characteristics, such as long-range dependence (LRD) and self-similarity in the large time scale, multifractal in small time scale. In this paper we propose...

2006
Wen Xie Lean Yu Shanying Xu Shouyang Wang

This paper proposes a new method for crude oil price forecasting based on support vector machine (SVM). The procedure of developing a support vector machine model for time series forecasting involves data sampling, sample preprocessing, training & learning and out-of-sample forecasting. To evaluate the forecasting ability of SVM, we compare its performance with those of ARIMA and BPNN. The expe...

2003
Rong Li

This report surveys time series methods that have been used and can be applied in predicting end-to-end delay of the Internet. ARIMA scheme and state-space approach are discussed and compared. Although state-space approach has the advantages in structure and computation, ARIMA modeling is still useful in identifying systems due to the complexity and uncertainty of the Internet. A practical exam...

Awareness of water demand is of particular importance for its policy in urban management. Predicting water demand in the future will allow managers to take the necessary measures regarding sustainable water supply, given the constraints and crises ahead. The purpose of this study is to compare multivariate regression and ARIMA models to predict water demand in Mashhad. In this study, first, the...

Journal: :International Journal of Plant and Soil Science 2022

Recently Hybrid model approach has led to a tremendous surge in many domains of science and engineering. In this study, we present the advantage ANN improve time series forecasting precision. The Autoregressive Integrated Moving Average (ARIMA) Artificial Neural Network (ANN) models are used separately recognize linear nonlinear components data set respectively. manner, proposed tactically util...

2014
Bishal Gurung

The well-known Box-Jenkins’ Autoregressive Integrated Moving Average (ARIMA) methodology for fitting time-series data has some major limitations. To this end, Exponential Autoregressive (EXPAR) family of models may be employed. An important characteristic feature of EXPAR is that it is capable of modelling those data sets that depict cyclical variations. Further, it can also be used when data s...

2007
S. MOHAN N. ARUMUGAM N. Arumugam

Abstract Evapotranspiration (ET) is an important process in the hydrological cycle and needs to be accurately quantified for proper irrigation scheduling and optimal water resources systems operation. The time variant characteristics of ET necessitate the need for forecasting ET. In this paper, two techniques, namely a seasonal ARIMA model and Winter's exponential smoothing model, have been inv...

2010
Balázs Lénárt

The paper investigates an artificial intelligence based demand forecasting method. A neural network driven automatic ARIMA model identification is being introduced. The limitations of the current methods are shown and a new identification concept is presented. It is being discussed that the model identification with a neural network is less sensitive to input errors through its intuitive capabi...

Journal: :World journal of gastroenterology 2004
Peng Guan De-Sheng Huang Bao-Sen Zhou

AIM To study the application of artificial neural network (ANN) in forecasting the incidence of hepatitis A, which had an autoregression phenomenon. METHODS The data of the incidence of hepatitis A in Liaoning Province from 1981 to 2001 were obtained from Liaoning Disease Control and Prevention Center. We used the autoregressive integrated moving average (ARIMA) model of time series analysis ...

Journal: :International Journal of Engineering & Technology 2018

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