Results 81 to 90 of about 25,321,415 (248)

Generalized nonlinearity in animal ecology: Research, review, and recommendations

open access: yesEcology and Evolution
Generalized linear models (GLMs) are an integral tool in ecology. Like general linear models, GLMs assume linearity, which entails a linear relationship between independent and dependent variables. However, because this assumption acts on the link rather
David R. Heit   +4 more
doaj   +1 more source

Generalized Additive Models for Gigadata: Modeling the U.K. Black Smoke Network Daily Data

open access: yes, 2017
We develop scalable methods for fitting penalized regression spline based generalized additive models with of the order of 104 coefficients to up to 108 data.
S. Wood   +3 more
semanticscholar   +1 more source

Model selection in generalised structured additive regression models [PDF]

open access: yes, 2007
In recent years data sets have become increasingly more complex requiring more flexible instruments for their analysis. Such a flexible instrument is regression analysis based on a structured additive predictor which allows an appropriate modelling for ...
Belitz, Christiane
core  

Robust estimation of mean and dispersion functions in extended generalized additive models. [PDF]

open access: yes
Generalized Linear Models are a widely used method to obtain parametric estimates for the mean function. They have been further extended to allow the relationship between the mean function and the covariates to be more flexible via Generalized Additive ...
Croux, Christophe   +2 more
core   +3 more sources

Animal models with group-specific additive genetic variances: extending genetic group models

open access: yesGenetics Selection Evolution, 2019
Background The animal model is a key tool in quantitative genetics and has been used extensively to estimate fundamental parameters, such as additive genetic variance or heritability.
Stefanie Muff   +4 more
doaj   +1 more source

Two new methods applied to crown width additive models: a case study for three tree species in Northeastern China

open access: yesAnnals of Forest Science, 2023
Key message The non-linear seemingly unrelated regression mixed-effects model (NSURMEM) and generalized additive model (GAM) were applied for the first time in crown width (CW) additive models of larch (Larix gmelinii Rupr.), birch (Betula platyphylla ...
Junjie Wang   +5 more
doaj   +1 more source

Axiomatic Interpretability for Multiclass Additive Models

open access: yesKnowledge Discovery and Data Mining, 2018
Generalized additive models (GAMs) are favored in many regression and binary classification problems because they are able to fit complex, nonlinear functions while still remaining interpretable.
Xuezhou Zhang   +5 more
semanticscholar   +1 more source

Causal additive models with smooth backfitting

open access: yesJournal of Causal Inference
A fully nonparametric approach to learning causal structures from observational data is proposed. The method is described in the setting of additive structural equation models with a link to causal inference.
Morville Asger B., Park Byeong U.
doaj   +1 more source

Forward-Modeling Approaches to American Option Valuation: Additive and Multiplicative HJM Representations

open access: yesRisks
This paper introduces an HJM-style forward modeling framework for valuing American options. Instead of modeling the dynamics of the underlying asset, we model the maturity-indexed forward drift of the gain process, leading to two no-arbitrage ...
Kushantha Fernando, Vajira Manathunga
doaj   +1 more source

Structured additive regression for multicategorical space-time data: A mixed model approach [PDF]

open access: yes, 2004
In many practical situations, simple regression models suffer from the fact that the dependence of responses on covariates can not be sufficiently described by a purely parametric predictor.
Kneib, Thomas, Fahrmeir, Ludwig
core   +1 more source

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