Results 21 to 30 of about 7,637,186 (260)

Wildfires Impact Assessment on PM Levels Using Generalized Additive Mixed Models

open access: yesAtmosphere, 2023
Wildfires are relevant sources of PM emissions and can have an important impact on air pollution and human health. In this study, we examine the impact of wildfire PM emissions on the Piemonte (Italy) air quality regional monitoring network using a ...
Gianluca Leone   +6 more
doaj   +1 more source

The Impact of Climate Change on The Geographic Distribution of Thymus Kotschyanus (Boiss and Hohen) Using Ensemble Modelling [PDF]

open access: yesمدیریت بیابان, 2021
This study aimed at predicting the effect of climate change on the geographic distribution of Thymus kotschyanus Boiss and Hohen in Mazandaran province. Species presence data were recorded via the Global Positioning System (GPS).
Samaneh Nazari   +3 more
doaj   +1 more source

Propriety of Posteriors in Structured Additive Regression Models: Theory and Empirical Evidence [PDF]

open access: yes, 2006
Structured additive regression comprises many semiparametric regression models such as generalized additive (mixed) models, geoadditive models, and hazard regression models within a unified framework.
Kneib, Thomas, Fahrmeir, Ludwig
core   +1 more source

A Longitudinal Analysis of the Impact of Distance Driven on the Probability of Car Accidents

open access: yesRisks, 2020
Using telematics data, we study the relationship between claim frequency and distance driven through different models by observing smooth functions. We used Generalized Additive Models (GAM) for a Poisson distribution, and Generalized Additive Models for
Jean-Philippe Boucher, Roxane Turcotte
doaj   +1 more source

PEMODELAN PRODUKTIVITAS PADI DENGAN MENGGUNAKAN GENERALIZED ADDITIVE MODELS DI PROVINSI BANTEN

open access: yesJurnal Lebesgue, 2020
Tujuan dari penelitian ini adalah untuk melakukan pemodelan produktivitas padi. Sumber data yang digunakan dalam penelitian ini adalah data produktivitas padi, penggunaan pupuk, penggunaan benih, sistem tanam, serangan OPT, dampak perubahan iklim, dan ...
Wahyudi Manurung, Muhammad Fajar, Noviar
doaj   +1 more source

Modeling the relationship between SARS-CoV-2 RNA in wastewater or sludge and COVID-19 cases in three New England regions

open access: yesJournal of Water and Health, 2022
Background: We aimed to compare statistical techniques estimating the association between SARS-CoV-2 RNA in untreated wastewater and sludge and reported coronavirus disease 2019 (COVID-19) cases.
Elyssa Anneser   +4 more
doaj   +1 more source

Impact of communities, health, and emotional-related factors on smoking use: comparison of joint modeling of mean and dispersion and Bayes’ hierarchical models on add health survey

open access: yesBMC Medical Research Methodology, 2017
Background The analysis of correlated binary data is commonly addressed through the use of conditional models with random effects included in the systematic component as opposed to generalized estimating equations (GEE) models that addressed the random ...
Jie Pu, Di Fang, Jeffrey R. Wilson
doaj   +1 more source

Maximal Associated Regression: A Nonlinear Extension to Least Angle Regression

open access: yesIEEE Access, 2021
This paper proposes Maximal Associated Regression (MAR), a novel algorithm that performs forward stage-wise regression by applying nonlinear transformations to fit predictor covariates.
Sanush K. Abeysekera   +3 more
doaj   +1 more source

Data-driven estimation of the hydrologic response using generalized additive models [PDF]

open access: yesGeoscientific Model Development
Estimating the hydrologic response of watersheds to precipitation events is key to understanding streamflow generation processes. Impulse Response Functions, commonly referred to as the Instantaneous Unit Hydrograph (IUH) in hydrology, have been used for
Q. Duchemin   +9 more
doaj   +1 more source

Non-Parametric Generalized Additive Models as a Tool for Evaluating Policy Interventions

open access: yesMathematics, 2021
The interrupted time series analysis is a quasi-experimental design used to evaluate the effectiveness of an intervention. Segmented linear regression models have been the most used models to carry out this analysis.
Jaime Pinilla, Miguel Negrín
doaj   +1 more source

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