Results 71 to 80 of about 4,998 (266)

Some Computational Aspects of Gaussian CARMA Modelling [PDF]

open access: yes
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  

An ecclesiastical court: Christian nationalism and perceptions of the US Supreme Court

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract Recently, scholars have increasingly examined the unique blending of Christian and political ideology known as Christian nationalism. During this period, the US Supreme Court has increasingly ruled in ways that favor Christian nationalism, and Court watchers have criticized several justices for showing bias toward Christianity at best and ...
Miles T. Armaly   +3 more
wiley   +1 more source

Performance Evaluation of Linear (ARMA) and Threshold Nonlinear (TAR) Time Series Models in Daily River Flow Modeling (Case Study: Upstream Basin Rivers of Zarrineh Roud Dam)

open access: yesمجله آب و خاک, 2017
Introduction: Time series models are generally categorized as a data-driven method or mathematically-based method. These models are known as one of the most important tools in modeling and forecasting of hydrological processes, which are used to design ...
Farshad Fathian   +3 more
doaj   +1 more source

A Comparative Review of Specification Tests for Diffusion Models

open access: yesInternational Statistical Review, EarlyView.
Summary Diffusion models play an essential role in modelling continuous‐time stochastic processes in the financial field. Therefore, several proposals have been developed in the last decades to test the specification of stochastic differential equations.
A. López‐Pérez   +3 more
wiley   +1 more source

Some functions of ARMA processes

open access: yes, 2013
This study provides a comprehensive overview of changes in the autoregressive-moving- average model (ARMA) when applied to various functions. First, the necessary and sufficient condition for a weakly stationary stochastic process described by ARMA is ...
Štufka, Miroslav
core  

From Groups to Individuals: How Identifiability Reduces Biased Meta‐Perceptions and Polarization

open access: yesJournal of Applied Social Psychology, EarlyView.
ABSTRACT Political polarization reflects not only people's attitudes toward rival groups but also their meta‐perceptions—beliefs about how one's group is viewed by the opposing side. These second‐order beliefs are often negatively biased and exaggerated (Lees and Cikara 2020), reinforcing mistrust and perceived division.
Amy Bruck, Ilana Ritov
wiley   +1 more source

Coal consumption forecast based on fractional ARIMA model

open access: yes矿业科学学报, 2017
The consumption of coal is very complex, and the forecast and analysis of coal consumption can provide reference for rational arrangement of coal production.The usual prediction is based on the ARMA or ARIMA model, which neither consider its long-term ...
Liu Kai, Zhang Xi
doaj   +1 more source

Comparative Radiopacity of Additively Manufactured Permanent and Temporary Resins and Conventional Resin‐Based Composites

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study aimed to evaluate whether radiopacity differs among additively manufactured permanent resins, temporary resins, and conventional resin‐based composites at clinically relevant thicknesses. Materials and Methods Eight dental materials were evaluated and categorized into four groups: additively manufactured permanent resins ...
Sinem Coşkun‐Albayrak   +3 more
wiley   +1 more source

Alternative Forecasting Techniques that Reduce the Bullwhip Effect in a Supply Chain: A Simulation Study

open access: yesPromet (Zagreb), 2013
The research of the Bullwhip effect has given rise to many papers, aimed at both analysing its causes and correcting it by means of various management strategies because it has been considered as one of the critical problems in a supply chain. This study
Francisco Campuzano-Bolarín   +3 more
doaj   +1 more source

Attitudes Towards Sexuality and Sexual Orientation in People With Intellectual Disabilities: A Systematic Review

open access: yesJournal of Intellectual Disability Research, EarlyView.
ABSTRACT Over time, sexuality has become a crucial aspect in people's lives, regardless of physical, intellectual or social conditions, ranging from sex and sexually transmitted diseases to gender identity and sexual orientation. The aim of this study was to carry out a review of the scientific literature on sexual orientation in people with ...
Laura Armas Junco   +2 more
wiley   +1 more source

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