The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018)

Bansal and Peterson (2018) found that in simple stationary Gaussian simulations Random Field Theory incorrectly estimates the number of clusters of a Gaussian field that lie above a threshold. Their results contradict the existing literature and appear to have arisen due to errors in their code. Usi...

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Detalles Bibliográficos
Autores principales: Davenport, Samuel, Nichols, Thomas E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7612853/
https://www.ncbi.nlm.nih.gov/pubmed/35121067
http://dx.doi.org/10.1016/j.mri.2021.11.010
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author Davenport, Samuel
Nichols, Thomas E.
author_facet Davenport, Samuel
Nichols, Thomas E.
author_sort Davenport, Samuel
collection PubMed
description Bansal and Peterson (2018) found that in simple stationary Gaussian simulations Random Field Theory incorrectly estimates the number of clusters of a Gaussian field that lie above a threshold. Their results contradict the existing literature and appear to have arisen due to errors in their code. Using reproducible code we demonstrate that in their simulations Random Field Theory correctly predicts the expected number of clusters and therefore that many of their results are invalid.
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spelling pubmed-76128532022-07-01 The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018) Davenport, Samuel Nichols, Thomas E. Magn Reson Imaging Article Bansal and Peterson (2018) found that in simple stationary Gaussian simulations Random Field Theory incorrectly estimates the number of clusters of a Gaussian field that lie above a threshold. Their results contradict the existing literature and appear to have arisen due to errors in their code. Using reproducible code we demonstrate that in their simulations Random Field Theory correctly predicts the expected number of clusters and therefore that many of their results are invalid. 2022-07-01 2022-02-01 /pmc/articles/PMC7612853/ /pubmed/35121067 http://dx.doi.org/10.1016/j.mri.2021.11.010 Text en https://creativecommons.org/licenses/by/4.0/This work is licensed under a CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) International license.
spellingShingle Article
Davenport, Samuel
Nichols, Thomas E.
The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018)
title The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018)
title_full The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018)
title_fullStr The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018)
title_full_unstemmed The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018)
title_short The expected behaviour of random fields in high dimensions: contradictions in the results of Bansal and Peterson (2018)
title_sort expected behaviour of random fields in high dimensions: contradictions in the results of bansal and peterson (2018)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7612853/
https://www.ncbi.nlm.nih.gov/pubmed/35121067
http://dx.doi.org/10.1016/j.mri.2021.11.010
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