Results 11 to 20 of about 283,485 (287)

AR, CR and ARCR modeling for simulations and analyses of karst groundwater quality parameters [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2018
Although an invisible component of the hydrologic cycle, groundwater generally takes precedence over other water resources in the area of drinking water supply.
Ristić-Vakanjac Vesna   +4 more
doaj   +1 more source

A Manifold-Level Hybrid Deep Learning Approach for Sentiment Classification Using an Autoregressive Model

open access: yesApplied Sciences, 2023
With the recent expansion of social media in the form of social networks, online portals, and microblogs, users have generated a vast number of opinions, reviews, ratings, and feedback.
Roop Ranjan   +7 more
doaj   +1 more source

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. We derive theoretical power when there is an additive outlier in the data, and present simulation evidence showing ...
Carlos Santos, David Hendry
openaire   +6 more sources

Tempered stable autoregressive models

open access: yesCommunications in Statistics - Theory and Methods, 2022
In this article, we introduce and study a one sided tempered stable first order autoregressive model called TAR(1). Under the assumption of stationarity of the model, the marginal probability density function of the error term is found. It is shown that the distribution of the error term is infinitely divisible.
Bhootna, Niharika, Kumar, Arun
openaire   +2 more sources

Any-to-One Non-Parallel Voice Conversion System Using an Autoregressive Conversion Model and LPCNet Vocoder

open access: yesApplied Sciences, 2023
We present an any-to-one voice conversion (VC) system, using an autoregressive model and LPCNet vocoder, aimed at enhancing the converted speech in terms of naturalness, intelligibility, and speaker similarity.
Kadria Ezzine   +2 more
doaj   +1 more source

Overview of Identification Methods of Autoregressive Model in Presence of Additive Noise

open access: yesMathematics, 2023
This paper presents an overview of the main methods used to identify autoregressive models with additive noises. The classification of identification methods is given. For each group of methods, advantages and disadvantages are indicated.
Dmitriy Ivanov, Zaineb Yakoub
doaj   +1 more source

Spatial Temporal Conditional Auto-Regressive Model: A New Autoregressive Matrix

open access: yesAustrian Journal of Statistics, 2016
In the study of geographical patterns of disease, multivariate areal data models proposed so far in the literature (Ma and Carlin, 2007; Carlin and Banerjee, 2003; Knorr-Held and Best, 2001) have allowed to handle several features of a phenomenon at the ...
Leonardo Mariella, Marco Tarantino
doaj   +1 more source

Modification of ARL for detecting changes on the double EWMA chart in time series data with the autoregressive model

open access: yesConnection Science, 2023
This research aims to derive the average run length (ARL) evaluation of the double exponentially weighted moving average (double EWMA) control chart for observation data that follows exponential white noise in a time series model with an autoregressive ...
Kotchaporn Karoon   +2 more
doaj   +1 more source

Noncausal autoregressions for economic time series [PDF]

open access: yes, 2010
This paper is concerned with univariate noncausal autoregressive models and their potential usefulness in economic applications. In these models, future errors are predictable, indicating that they can be used to empirically approach rational ...
Lanne, Markku, Saikkonen, Pentti
core   +1 more source

Bootstrapping periodically autoregressive models [PDF]

open access: yesESAIM: Probability and Statistics, 2017
The main objective of this paper is to establish the residual and the wild bootstrap procedures for periodically autoregressive models. We use the least squares estimators of model’s parameters and generate their bootstrap equivalents. We prove that the bootstrap procedures for causal periodic autoregressive time series with finite fourth moments are ...
Ciołek, Gabriela, Potorski, Paweł
openaire   +2 more sources

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