Results 61 to 70 of about 10,065 (268)

Linear Ensembles for WTI Oil Price Forecasting

Energies
This paper investigated the use of linear models to forecast crude oil futures prices (WTI) on a monthly basis, emphasizing their importance for financial markets and the global economy.
João Lucas Ferreira dos Santos, Allefe Jardel Chagas Vaz, Yslene Rocha Kachba, Sergio Luiz Stevan, Thiago Antonini Alves, Hugo Valadares Siqueira   +5 more
doaj   +1 more source

Integrating experimental and observational approaches facilitates scaling species interactions to biodiversity patterns

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract To investigate how niche and fitness differences determine the outcome of species interactions and shape local biodiversity patterns, research has typically focused on either simplified experimental systems that test specific mechanisms or observational studies where ...
Jared D. Huxley, William D. Bowman, Marko J. Spasojevic   +2 more
wiley   +1 more source

Parsimonious Network Traffic Modeling By Transformed ARMA Models

IEEE Access, 2014
Generating synthetic data traffic, which statistically resembles its recorded counterpart is one of the main goals of network traffic modeling. Equivalently, one or several random processes shall be created, exhibiting multiple prescribed statistical ...
Markus Laner, Philipp Svoboda, Markus Rupp   +2 more
doaj   +1 more source

A Switchgrass-based Bioethanol Supply Chain Network Design Model under Auto-Regressive Moving Average Demand [PDF]

Journal of Renewable Energy and Environment, 2016
Switchgrass is known as one of the best second-generation lignocellulosic biomasses for bioethanol production. Designing efficient switchgrass-based bioethanol supply chain (SBSC) is an essential requirement for commercializing the bioethanol production ...
Hamid Ghaderi, Mona Asadi, Saeed Shavalpour   +2 more
doaj   +1 more source

Inversion Of H-Arma Models

, 1998
Publication in the conference proceedings of EUSIPCO, Rhodes, Greece ...
David Declercq, Patrick Duvaut, Jérôme Soubielle   +2 more
openaire   +3 more sources

Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties

Journal of Animal Ecology, EarlyView.
Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea, Fuensanta García‐Orenes, Zebensui Morales‐Reyes, Moisés Gonzálvez, Carlos Martínez‐Carrasco, Marcos Moleón, Daniel Redondo‐Gómez, Evan A. N. Marks, Minerva García‐Carmona, Victoria Arcenegui, José Carlos Huerta‐del‐Bosque, Adrián Orihuela‐Torres, Santiago Soliveres, Sofia Albolafio, Esther Sebastián‐González, José Antonio Sánchez‐Zapata   +15 more
wiley   +1 more source

Variability in Times of Disease. Application of ARMA-GARCH in Modelling and Predicting Volatility of S&P500 Index Return Rates in COVID-19

Ekonometria
Aim: The article considers the time series case of the closing prices of the S&P500 index over the period from January 2020 to April 2021. The author selected the best ARMA(p,q)-GARCH(1,1) models with different forms of probability density functions. The
Damian Wiśniewski
doaj   +1 more source

Testing and modelling autoregressive conditional heteroskedasticity of streamflow processes [PDF]

Nonlinear Processes in Geophysics, 2005
Conventional streamflow models operate under the assumption of constant variance or season-dependent variances (e.g. ARMA (AutoRegressive Moving Average) models for deseasonalized streamflow series and PARMA (Periodic AutoRegressive Moving Average ...
W. Wang, W. Wang, P. H. A. J. M Van Gelder, J. K. Vrijling, J. Ma   +4 more
doaj  

Two-Tier Reactive Power and Voltage Control Strategy Based on ARMA Renewable Power Forecasting Models

Energies, 2017
To address the static voltage stability issue and suppress the voltage fluctuation caused by the increasing integration of wind farms and solar photovoltaic (PV) power plants, a two-tier reactive power and voltage control strategy based on ARMA power ...
Jinling Lu, Bo Wang, Hui Ren, Daqian Zhao, Fei Wang, Miadreza Shafie-khah, João P. S. Catalão   +6 more
doaj   +1 more source

The Language of Gendered Violence and Sexual Aggression in the Spanish Civil War: Conceptualizations and Reassessments

History, EarlyView.
Abstract This article examines the conceptual vocabulary through which violence against women during the Spanish Civil War has been interpreted, with particular attention to the longstanding predominance of the category ‘sexed violence’ (violencia sexuada).
SABINA MOMPÓ TORIBIO
wiley   +1 more source