Results 1 to 10 of about 45,001 (165)

Saturation in autoregressive models [PDF]

open access: yesNotas Económicas, 2006
In this paper, we extend the impulse saturation algorithm to a class of dynamic models. We show that the procedure is still correctly sized for stationary AR(1) processes, independently of the number of splits used for sample partitions.
Carlos Santos, David Hendry
doaj   +6 more sources

Message Passing-Based Inference for Time-Varying Autoregressive Models [PDF]

open access: yesEntropy, 2021
Time-varying autoregressive (TVAR) models are widely used for modeling of non-stationary signals. Unfortunately, online joint adaptation of both states and parameters in these models remains a challenge.
Albert Podusenko   +2 more
doaj   +2 more sources

Entropy Power, Autoregressive Models, and Mutual Information [PDF]

open access: yesEntropy, 2018
Autoregressive processes play a major role in speech processing (linear prediction), seismic signal processing, biological signal processing, and many other applications.
Jerry Gibson
doaj   +2 more sources

Estimation of parameters of autoregressive models with fractional differences in the presence of additive noise

open access: yesВестник Самарского университета: Естественнонаучная серия, 2023
For modeling in time series, models with fractional differences are widely used. The best known model is the ARFIMA (autoregressive fractionally integrated moving average) model.
Dmitriy V. Ivanov
doaj   +1 more source

Some remarks on selfnormalization for a simple spatial autoregressive model

open access: yesLietuvos Matematikos Rinkinys, 2021
In the paper I continue investigations on the self-normalization of simple autoregressive field Xt,s = aXt−1,s + bXt,s−1 + εt,s started in [5]. And extend previous results when the variance of the innovations of the process above are not finite.
Romas Zovė
doaj   +1 more source

Autoregressive graph Volterra models and applications

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
Graph-based learning and estimation are fundamental problems in various applications involving power, social, and brain networks, to name a few. While learning pair-wise interactions in network data is a well-studied problem, discovering higher-order ...
Qiuling Yang   +3 more
doaj   +1 more source

Graph Neural Networks for Modeling Causality in International Trade

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference, 2021
Neural network algorithms have proven successful for accurate classifications in many domains such as image recognition and semantic parsing. However, they have long suffered from the lack of ability to measure causality, predict outliers effectively, or
Anderson Monken   +4 more
doaj   +1 more source

A Refinement of Recurrence Analysis to Determine the Time Delay of Causality in Presence of External Perturbations

open access: yesEntropy, 2020
This article describes a refinement of recurrence analysis to determine the delay in the causal influence between a driver and a target, in the presence of additional perturbations affecting the time series of the response observable.
Emmanuele Peluso   +2 more
doaj   +1 more source

A Neural Networks Based Method for Multivariate Time-Series Forecasting

open access: yesIEEE Access, 2021
In recent years, more and more deep neural network methods have been used in the forecasting research of multivariate time series. Comparing to the traditional methods such as autoregressive models, methods based on neural networks have achieved superior
Shaowei Li, He Huang, Wei Lu
doaj   +1 more source

Soil Dynamics and Crop Yield Modeling Using the MONICA Crop Simulation Model and Time Series Forecasting Methods

open access: yesAgronomy, 2023
Crop simulation models are an important tool for assessing agroecosystem performance and the impact of agrotechnologies on soil cover condition.
Islombek Mirpulatov   +2 more
doaj   +1 more source

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