Results 21 to 30 of about 8,001,041 (336)

COSIMA data analysis using multivariate techniques [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2015
We describe how to use multivariate analysis of complex TOF-SIMS (time-of-flight secondary ion mass spectrometry) spectra by introducing the method of random projections.
J. Silén   +6 more
doaj   +1 more source

The Use of Multivariate Data Analysis (HCA and PCA) to Characterize Ashes from Biomass Combustion

open access: yesEnergies, 2021
The content of heavy metals Cd, Cr, Cu, Fe, Ni, Pb and Zn in ash samples from miscanthus, oak, pine, sunflower husk, wheat straw, and willow ashes burned at 500, 600, 700, 800, 900, and 1000 °C, respectively, was determined.
Małgorzata Szczepanik   +5 more
doaj   +1 more source

An algorithm for processing mass spectrometric analysis data for initial diagnostics of diseases by exhaled gases

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2021
An algorithm for processing mass spectra of gases exhaled by patients has been proposed in the paper. The mass spectra are recorded on the MS7-200 quadrupole mass spectrometer, with electronic ionization and with direct capillary injection of the sample.
Manoilov vladimir   +4 more
doaj   +1 more source

A review on longitudinal data analysis with random forest [PDF]

open access: yesBriefings Bioinform., 2022
In longitudinal studies variables are measured repeatedly over time, leading to clustered and correlated observations. If the goal of the study is to develop prediction models, machine learning approaches such as the powerful random forest (RF) are often
Jianchang Hu, S. Szymczak
semanticscholar   +1 more source

Insight into human pubertal growth by applying the QEPS growth model

open access: yesBMC Pediatrics, 2017
Background Computerized mathematical models describing absolute and relative individual growth during puberty in both cm and standard deviation (SD)-scores are lacking.
Anton Holmgren   +5 more
doaj   +1 more source

Enhancing Speech Emotions Recognition Using Multivariate Functional Data Analysis

open access: yesBig Data and Cognitive Computing, 2023
Speech Emotions Recognition (SER) has gained significant attention in the fields of human–computer interaction and speech processing. In this article, we present a novel approach to improve SER performance by interpreting the Mel Frequency Cepstral ...
Matthieu Saumard
doaj   +1 more source

Resampling-Based Analysis of Multivariate Data and Repeated Measures Designs with the R Package MANOVA.RM [PDF]

open access: yesThe R Journal, 2018
The numerical availability of statistical inference methods for a modern and robust analysis of longitudinal- and multivariate data in factorial experiments is an essential element in research and education.
Sarah Friedrich   +2 more
semanticscholar   +1 more source

Bayesian Semiparametric Regression Analysis of Multivariate Panel Count Data

open access: yesStats, 2022
Panel count data often occur in a long-term recurrent event study, where the exact occurrence time of the recurrent events is unknown, but only the occurrence count between any two adjacent observation time points is recorded.
Chunling Wang, Xiaoyan Lin
doaj   +1 more source

Correlated Components Analysis - Extracting Reliable Dimensions in Multivariate Data [PDF]

open access: yesNeurons, Behavior, Data analysis, and Theory, 2018
How does one find dimensions in multivariate data that are reliably expressed across repetitions? For example, in a brain imaging study one may want to identify combinations of neural signals that are reliably expressed across multiple trials or subjects.
L. Parra, S. Haufe, J. Dmochowski
semanticscholar   +1 more source

Correlation Analysis for Exploring Multivariate Data Sets

open access: yesIEEE Access, 2018
Correlation analysis is of great significance for exploring the multivariate data sets as it helps researchers toward an in-depth understanding of the complex interactions and relationships among variables.
Li Wang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy