Results 111 to 120 of about 51,335 (252)

GARCH Model IBM Stock Forecasting of Price Volatility

International Journal of Electronics and Communications System
Risk and volatility are two related factors in research regarding capital markets. Many factors influence the movement of shares and indices. Volatility is common and affects risk assessment. Stock price volatility is an important aspect of understanding
Balqis Dwian Fitri Zamzami, Ericson Chandra Sihombing, Veni Zahara Kartika, Christian Arvianus Nathanael Biran, Luluk Muthoharoh, Mika Alvionita Sitinjak   +5 more
doaj   +1 more source

Some Computational Aspects of Gaussian CARMA Modelling [PDF]

Representation of continuous-time ARMA, CARMA, models is reviewed. Computational aspects of simulating and calculating the likelihood-function of CARMA are summarized. Some numerical properties are illustrated by simulations.
Tómasson, Helgi
core  

Penalized Convex Estimation in Dynamic Location Models

Journal of Time Series Analysis, EarlyView.
ABSTRACT This paper studies L1$$ {L}^1 $$‐penalized estimation for location models yt=mt+ϵt$$ {y}_t={m}_t+{\epsilon}_t $$, where mt$$ {m}_t $$ is defined by a possibly non‐Markovian recursion and ϵt$$ {\epsilon}_t $$ is a martingale difference sequence with possibly time‐varying conditional variance.
Reda Alami Chentoufi
wiley   +1 more source

Moving Aggregate Modified Autoregressive Copula‐Based Time Series Models (MAGMAR‐Copulas)

Journal of Time Series Analysis, EarlyView.
ABSTRACT Copula‐based time series models can model univariate and stationary time series in a flexible way by decomposing the joint distribution of consecutive observations into a copula and the stationary distribution. Implicitly, this approach assumes a finite Markov order. In reality, a time series may not follow the Markov property.
Sven Pappert
wiley   +1 more source

Modeling Some Weather Phenomena by Vector ARMA [PDF]

المجلة العراقية للعلوم الاحصائية, 2018
Hasnaa A Ismaeel, Thafer R. Al-Badrany
doaj   +1 more source

Christian Nationalism and the Vote for Donald Trump in the 2024 Presidential Election: A State‐Level Analysis

Nations and Nationalism, EarlyView.
ABSTRACT Within the US electoral system, where states are conceived of and vote as discrete entities, state‐level characteristics are vital to consider because they reflect sociocultural context influencing voter behaviour. Though numerous studies have documented the connection between Christian nationalist ideology and voting for Donald Trump in 2016,
Andrew L. Whitehead, Samuel L. Perry
wiley   +1 more source

Ecological and genomic variation in ectomycorrhizal fungal exploration types

New Phytologist, EarlyView.
Summary Ectomycorrhizal fungi (EMF) produce mycelia with variable extension and complexity, which can be classified according to soil ‘exploration types’ (ETs). ETs have received attention as one of the few mycorrhizal trait frameworks, but without an empirical classification of ET functional diversity and environmental preferences, understanding and ...
Thomas M. Mansfield, Artin Zarsav, Filipa Cox, Laura M. Suz, Martin I. Bidartondo, Sietse van der Linde, Nadia Barsoum, Colin Averill, Alan Kuo, Leho Tedersoo, Pasi Rautio, Arthur Gessler, Bruno De Vos, Luc Croisé, Henning Meesenburg, Markus Wagner, Frank Jacob, Paweł Lech, Anna Kowalska, Martin Greve, Genoveva Popova, Beat Frey, Marcus Schaub, Marco Ferretti, Peter Waldner, Vicent Calatayud, Roberto Canullo, Giancarlo Papitto, Aleksander Marinšek, Lars Vesterdal, Morten Ingerslev, Helge Meissner, Volkmar Timmermann, Nadine Eickenscheidt, Andreas Schmitz, Francis M. Martin, Joseph Spatafora, Peter G. Kennedy, Annegret Kohler, Jonathan M. Plett, Ian C. Anderson, Sara Branco, Igor V. Grigoriev, Chris J. Pires, Sarah A. Unruh, Lawrence W. Zettler, Otto Miettinen, Ilya Viner, Tom W. May, Teresa Lebel, David E. A. Catcheside, Pamela S. Catcheside, Helen P. Vonow, Leigh A. Burgoyne, Julia Haska, Mark A. Anthony   +55 more
wiley   +1 more source

Keluarga Sakinah Berwawasan Gender

Muwazah
Every adherent of a religion, believes in the truth of every doctrine that is in his religion, whether in worship or in daily life, such as life in marriage.
Muslim Arma
doaj   +1 more source

Heterogeneous Oral Health Outcomes by Combustible Cigarette Smoking, E‐Cigarette Use and Dual Use: A Cross‐Sectional Population‐Based Analysis

Oral Diseases, EarlyView.
ABSTRACT Background Combustible cigarette smoking is a well‐established risk factor for poor oral health, but the implications of e‐cigarette use and dual use remain uncertain. Distinguishing the effects of vaping from the lingering consequences of prior smoking is a persistent challenge in the literature. Objectives To assess how distinct nicotine use
Yusuff Adebayo Adebisi, Najim Z. Alshahrani, Mohammed Moshabbab Alqahtani, Roqayya Mohammed Ahmed Alhayyani, Mona Majrashi, Anas Ali Alhur, Waleed Almutairi, Oshibe Joseph Daberechi, Isaac Olushola Ogunkola   +8 more
wiley   +1 more source

Armas de destrucción masiva : las armas biológicas

, 2020
Fil: Centro de Prospectiva militar Grl ...
openaire   +1 more source