Results 51 to 60 of about 451,504 (196)

Determinação espectroscópica multivariada de glucosamina e condroitina em formulações farmacêuticas Multivariate spectroscopic determination of glucosamine and chondroitin in pharmaceutical formulations

open access: yesQuímica Nova, 2008
The objective of this study was to develop and validate an analytical method for quantification of glucosamine and chondroitin in pharmaceutical formulations. Multivariate calibration combined with infrared spectrophotometry allowed this analysis.
Paula Rossignoli   +4 more
doaj   +1 more source

Robust improper maximum likelihood: tuning, computation, and a comparison with other methods for robust Gaussian clustering [PDF]

open access: yes, 2016
The two main topics of this paper are the introduction of the "optimally tuned improper maximum likelihood estimator" (OTRIMLE) for robust clustering based on the multivariate Gaussian model for clusters, and a comprehensive simulation study comparing ...
Coretto, Pietro, Hennig, Christian
core   +4 more sources

Projection Pursuit Multivariate Sampling of Parameter Uncertainty

open access: yesApplied Sciences, 2022
The efficiency of sampling is a critical concern in Monte Carlo analysis, which is frequently used to assess the effect of the uncertainty of the input variables on the uncertainty of the model outputs.
Oktay Erten   +2 more
doaj   +1 more source

Cramer-Rao Lower Bound for Point Based Image Registration with Heteroscedastic Error Model for Application in Single Molecule Microscopy

open access: yes, 2015
The Cramer-Rao lower bound for the estimation of the affine transformation parameters in a multivariate heteroscedastic errors-in-variables model is derived.
Cohen, E. A. K., Kim, D., Ober, R. J.
core   +1 more source

Bayesian Geoadditive Seemingly Unrelated Regression [PDF]

open access: yes, 2002
Parametric seemingly unrelated regression (SUR) models are a common tool for multivariate regression analysis when error variables are reasonably correlated, so that separate univariate analysis may result in inefficient estimates of covariate effects. A
Adebayo, Samson B.   +3 more
core   +1 more source

A new approach fits multivariate genomic prediction models efficiently

open access: yesGenetics Selection Evolution, 2022
Background Fast, memory-efficient, and reliable algorithms for estimating genomic estimated breeding values (GEBV) for multiple traits and environments are needed to make timely decisions in breeding.
Alencar Xavier, David Habier
doaj   +1 more source

Influence of segment length on the fitness of multivariate crash prediction models applied to a Brazilian multilane highway

open access: yesIATSS Research, 2021
Road safety modeling enables the development of crash prediction models and the investigation of which factors contribute to crash occurrence. Developing multivariate response models is also valuable, but such models are currently under-exploited ...
Philippe Barbosa Silva   +2 more
doaj   +1 more source

Maximum-likelihood estimation for diffusion processes via closed-form density expansions [PDF]

open access: yes, 2013
This paper proposes a widely applicable method of approximate maximum-likelihood estimation for multivariate diffusion process from discretely sampled data.
Li, Chenxu
core   +1 more source

Multiple Response Variables Regression Models in R: The mcglm Package

open access: yesJournal of Statistical Software, 2018
This article describes the R package mcglm implemented for fitting multivariate covariance generalized linear models (McGLMs). McGLMs provide a general statistical modeling framework for normal and non-normal multivariate data analysis, designed to ...
Wagner Hugo Bonat
doaj   +1 more source

APPLICATION AND PERFORMANCE COMPARISON OF MULTI-OUTPUT MACHINE LEARNING FOR NUMERICAL-NUMERICAL AND NUMERICAL-CATEGORICAL OUTPUTS

open access: yesBarekeng
Multi-Output Machine Learning is an advancement of traditional machine learning, designed to predict multiple output variables simultaneously while considering the relationships between these output variables.
Karin Joan, Robyn Irawan, Benny Yong
doaj   +1 more source

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