Articles with "autoregressive model" as a keyword



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Bayesian estimation and model selection of a multivariate smooth transition autoregressive model

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Published in 2019 at "Environmetrics"

DOI: 10.1002/env.2615

Abstract: The multivariate smooth transition autoregressive model with order k (M‐STAR)(k) is a nonlinear multivariate time series model able to capture regime changes in the conditional mean. The main aim of this paper is to develop… read more here.

Keywords: autoregressive model; transition autoregressive; smooth transition; transition ... See more keywords
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Fractional Volterra LMS algorithm with application to Hammerstein control autoregressive model identification

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Published in 2018 at "Neural Computing and Applications"

DOI: 10.1007/s00521-018-3362-z

Abstract: In the present study, strength of fractional-order adaptive signal processing through fractional Volterra least mean square (FV-LMS) algorithm is exploited for Hammerstein nonlinear control autoregressive model (HN-CAR) identification. The FV-LMS method is a generalization of… read more here.

Keywords: autoregressive model; fractional volterra; control autoregressive; model ... See more keywords
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Autoregressive model of an underwater acoustic channel in the frequency domain

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Published in 2022 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2021.108397

Abstract: Abstract The underwater acoustic (UWA) channel model based on the multipath delay–amplitude or the angle of departure (AoD)–angle of arrival (AoA) require many parameters to describe a broadband underwater acoustic (UWA) channel. In this paper,… read more here.

Keywords: autoregressive model; channel; model; channel frequency ... See more keywords
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An innovative Bayesian system identification method using autoregressive model

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Published in 2019 at "Mechanical Systems and Signal Processing"

DOI: 10.1016/j.ymssp.2019.106289

Abstract: Abstract This paper proposes an innovative Bayesian method for system identification based on autoregressive (AR) model. The dynamics of a structure is first modeled by an AR model. Due to measurement noise and modeling errors… read more here.

Keywords: autoregressive model; method; model; system identification ... See more keywords
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Hypertension Monitoring by a Real Time Management System for Patients in Community and Its Data Mining by Vector Autoregressive Model

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Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2023.3240084

Abstract: Blood pressure has a 24-hour repetitive and regular variation which shows circadian rhythm. Using the multivariate time series analysis method of vector autoregressive model, we could realize the simultaneous prediction for both systolic and diastolic… read more here.

Keywords: blood; vector autoregressive; blood pressure; autoregressive model ... See more keywords
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A Time-Varying Autoregressive Model for Characterizing Nonstationary Processes

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Published in 2019 at "IEEE Signal Processing Letters"

DOI: 10.1109/lsp.2018.2880086

Abstract: This letter presents a time-varying autoregressive (TVAR) model aiming to characterize nonstationary behaviors often observed in real-world processes, which cannot be properly described by autoregressive processes such as first-order Markov and random-walk models. Specifically, general… read more here.

Keywords: varying autoregressive; autoregressive model; tvar model; model ... See more keywords
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Comparison of Conventional Modeling Techniques with the Neural Network Autoregressive Model (NNAR): Application to COVID-19 Data

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Published in 2022 at "Journal of Healthcare Engineering"

DOI: 10.1155/2022/4802743

Abstract: The coronavirus disease 2019 (COVID-19) pandemic continues to destroy human life around the world. Almost every country throughout the globe suffered from this pandemic, forcing various governments to apply different restrictions to reduce its impact.… read more here.

Keywords: neural network; model nnar; network autoregressive; covid ... See more keywords
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A Unified Test for the AR Error Structure of an Autoregressive Model

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Published in 2022 at "Axioms"

DOI: 10.3390/axioms11120690

Abstract: A direct application of autoregressive (AR) models with independent and identically distributed (iid) errors is sometimes inadequate to fit the time series data well. A natural alternative is further to assume the model errors following… read more here.

Keywords: test; unified test; model; error structure ... See more keywords
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A Mixture Autoregressive Model Based on an Asymmetric Exponential Power Distribution

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Published in 2023 at "Axioms"

DOI: 10.3390/axioms12020196

Abstract: In nonlinear time series analysis, the mixture autoregressive model (MAR) is an effective statistical tool to capture the multimodality of data. However, the traditional methods usually need to assume that the error follows a specific… read more here.

Keywords: exponential power; asymmetric exponential; model; distribution ... See more keywords