Results 41 to 50 of about 7,564,642 (290)

An Overview of Kriging and Cokriging Predictors for Functional Random Fields

open access: yesMathematics, 2023
This article presents an overview of methodologies for spatial prediction of functional data, focusing on both stationary and non-stationary conditions.
Ramón Giraldo   +2 more
doaj   +1 more source

Functional Data Analysis of Dynamic PET Data [PDF]

open access: yesJournal of the American Statistical Association, 2018
One application of positron emission tomography (PET), a nuclear imaging technique, in neuroscience involves in vivo estimation of the density of various proteins (often, neuroreceptors) in the brain. PET scanning begins with the injection of a radiolabeled tracer that binds preferentially to the target protein; tracer molecules are then continuously ...
Yakuan Chen   +2 more
openaire   +2 more sources

Bi-Smoothed Functional Independent Component Analysis for EEG Artifact Removal

open access: yesMathematics, 2021
Motivated by mapping adverse artifactual events caused by body movements in electroencephalographic (EEG) signals, we present a functional independent component analysis based on the spectral decomposition of the kurtosis operator of a smoothed principal
Marc Vidal   +2 more
doaj   +1 more source

From data to function: Functional modeling of poultry genomics data

open access: yesPoultry Science, 2013
One of the challenges of functional genomics is to create a better understanding of the biological system being studied so that the data produced are leveraged to provide gains for agriculture, human health, and the environment. Functional modeling enables researchers to make sense of these data as it reframes a long list of genes or gene products ...
F M, McCarthy, E, Lyons
openaire   +2 more sources

Functional single index models for longitudinal data

open access: yes, 2011
A new single-index model that reflects the time-dynamic effects of the single index is proposed for longitudinal and functional response data, possibly measured with errors, for both longitudinal and time-invariant covariates.
Jiang, Ci-Ren, Wang, Jane-Ling
core   +1 more source

Identification of Granite Varieties from Colour Spectrum Data

open access: yesSensors, 2010
The granite processing sector of the northwest of Spain handles many varieties of granite with specific technical and aesthetic properties that command different prices in the natural stone market. Hence, correct granite identification and classification
José Antonio Vilán   +3 more
doaj   +1 more source

An improved parser for data-oriented lexical-functional analysis [PDF]

open access: yes, 2000
We present an LFG-DOP parser which uses fragments from LFG-annotated sentences to parse new sentences. Experiments with the Verbmobil and Homecentre corpora show that (1) Viterbi n best search performs about 100 times faster than Monte Carlo search while
Bod, Rens
core   +3 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Nonparametric expectile shortfall regression for functional data

open access: yesDemonstratio Mathematica
This work addresses the issue of financial risk analysis by introducing a novel expected shortfall (ES) regression model, which employs expectile regression to define the shortfall threshold in financial risk management.
Almanjahie Ibrahim M.   +4 more
doaj   +1 more source

Asymptotic Results of Some Conditional Nonparametric Functional Parameters in High-Dimensional Associated Data

open access: yesMathematics, 2023
In this paper, we propose to study the asymptotic properties of some conditional functional parameters, such as the distribution function, the density, and the hazard function, for an explanatory variable with values in a Hilbert space (infinite ...
Hamza Daoudi   +2 more
doaj   +1 more source

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