Results 1 to 10 of about 87,812 (120)
Comparative Study of Lee Carter and Arch Model in Modelling Female Mortality in Nigeria
UMYU Scientifica Journal, 2022 Using Nigeria mortality data from 2009 to 2020, this study compares and contrasts how well the Lee-Carter and ARCH models performed. Singular value decomposition (SVD) method, Langrage multiplier test, and autoregressive conditional heteroskedasticity ...
Aliyu Umar Shelleng +3 more
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Symmetric and asymmetric volatility: Forecasting the Borsa Istanbul 100 index return volatility
Financial Internet Quarterly, 2023 The development of technology and the globalization of financial markets have increased the volatility in financial markets and caused the emergence of risks and uncertainties that have not been previously encountered.
Öner Selma, Öner Hakan
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ARCHModels.jl: Estimating ARCH Models in Julia
Journal of Statistical Software, 2023 This paper introduces ARCHModels.jl, a package for the Julia programming language that implements a number of univariate and multivariate autoregressive conditional heteroskedasticity models.
Simon A. Broda, Marc S. Paolella
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Journal of Indian Orthodontic Society, 2023 Introduction The aim of this study was to evaluate the validity of Ramanujan’s equation in measuring arch perimeter on untreated natural dentition models and their orthodontically corrected posttreatment models.
Kishan Antala +3 more
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Cogent Economics & Finance, 2021 This study compares the size and power of autoregressive conditional heteroskedasticity (ARCH) tests that are robust to the presence of a misspecified conditional mean.
Daiki Maki, Yasushi Ota
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Finite Element Analysis of Orthodontic Relapse in Different Maxillary Arch Form
BIO Integration, 2021 Background: Orthodontic relapse is fairly common; however, the mechanisms between relapse and the dental arch form remain unclear. The purpose of our study was to establish three-dimensional (3D) finite element models of different dental arch forms after
Yuanyuan Li, MD +5 more
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Mandibular Clinical Arch Forms in Iraqi Population: A National Survey
Diagnostics, 2022 Background: This study aims to identify mandibular clinical arch forms and dimensions in the Iraqi population. Materials and methods: The study sample consisted of pre-treatment mandibular study models of the Iraqi population.
Munther A. Ali, Yassir A. Yassir
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Applied Sciences, 2020 Hydrological modeling is one of the important subjects in managing water resources and the processes of predicting stochastic behavior. Developing Data-Driven Models (DDMs) to apply to hydrological modeling is a very complex issue because of the ...
Nasrin Fathollahzadeh Attar +10 more
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Semi-parametric estimation for ARCH models
Alexandria Engineering Journal, 2018 In this paper, we conduct semi-parametric estimation for autoregressive conditional heteroscedasticity (ARCH) model with Quasi likelihood (QL) and Asymptotic Quasi-likelihood (AQL) estimation methods.
Raed Alzghool, Loai M. Al-Zubi
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Frontiers in Materials, 2022 To study the bearing capacity of a corroded reinforced concrete (RC) arch and analyze the deterioration mechanism of an in-service RC arch bridge, a deterioration simulation under the coupling effect of the environment and load was performed by employing
Jingzhou Xin +5 more
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