Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detection

Abstract Standard medical diagnosis of mental health conditions requires licensed experts who are increasingly outnumbered by those at risk, limiting reach. We test the hypothesis that a trustworthy crowd of non-experts can efficiently annotate behavioral features needed for accurate machine learnin...

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Main Authors: Peter Washington, Qandeel Tariq, Emilie Leblanc, Brianna Chrisman, Kaitlyn Dunlap, Aaron Kline, Haik Kalantarian, Yordan Penev, Kelley Paskov, Catalin Voss, Nathaniel Stockham, Maya Varma, Arman Husic, Jack Kent, Nick Haber, Terry Winograd, Dennis P. Wall
Format: Article
Language:English
Published: Nature Portfolio 2021-04-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-87059-4
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author Peter Washington
Qandeel Tariq
Emilie Leblanc
Brianna Chrisman
Kaitlyn Dunlap
Aaron Kline
Haik Kalantarian
Yordan Penev
Kelley Paskov
Catalin Voss
Nathaniel Stockham
Maya Varma
Arman Husic
Jack Kent
Nick Haber
Terry Winograd
Dennis P. Wall
author_facet Peter Washington
Qandeel Tariq
Emilie Leblanc
Brianna Chrisman
Kaitlyn Dunlap
Aaron Kline
Haik Kalantarian
Yordan Penev
Kelley Paskov
Catalin Voss
Nathaniel Stockham
Maya Varma
Arman Husic
Jack Kent
Nick Haber
Terry Winograd
Dennis P. Wall
author_sort Peter Washington
collection DOAJ
description Abstract Standard medical diagnosis of mental health conditions requires licensed experts who are increasingly outnumbered by those at risk, limiting reach. We test the hypothesis that a trustworthy crowd of non-experts can efficiently annotate behavioral features needed for accurate machine learning detection of the common childhood developmental disorder Autism Spectrum Disorder (ASD) for children under 8 years old. We implement a novel process for identifying and certifying a trustworthy distributed workforce for video feature extraction, selecting a workforce of 102 workers from a pool of 1,107. Two previously validated ASD logistic regression classifiers, evaluated against parent-reported diagnoses, were used to assess the accuracy of the trusted crowd’s ratings of unstructured home videos. A representative balanced sample (N = 50 videos) of videos were evaluated with and without face box and pitch shift privacy alterations, with AUROC and AUPRC scores > 0.98. With both privacy-preserving modifications, sensitivity is preserved (96.0%) while maintaining specificity (80.0%) and accuracy (88.0%) at levels comparable to prior classification methods without alterations. We find that machine learning classification from features extracted by a certified nonexpert crowd achieves high performance for ASD detection from natural home videos of the child at risk and maintains high sensitivity when privacy-preserving mechanisms are applied. These results suggest that privacy-safeguarded crowdsourced analysis of short home videos can help enable rapid and mobile machine-learning detection of developmental delays in children.
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spelling doaj.art-7c1e977803b04ec7833a0f2e6600ab082022-12-21T20:28:38ZengNature PortfolioScientific Reports2045-23222021-04-0111111110.1038/s41598-021-87059-4Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detectionPeter Washington0Qandeel Tariq1Emilie Leblanc2Brianna Chrisman3Kaitlyn Dunlap4Aaron Kline5Haik Kalantarian6Yordan Penev7Kelley Paskov8Catalin Voss9Nathaniel Stockham10Maya Varma11Arman Husic12Jack Kent13Nick Haber14Terry Winograd15Dennis P. Wall16Department of Bioengineering, Stanford UniversityResearch ScientistDepartment of Pediatrics (Systems Medicine), Stanford UniversityDepartment of Bioengineering, Stanford UniversityDepartment of Pediatrics (Systems Medicine), Stanford UniversityDepartment of Pediatrics (Systems Medicine), Stanford UniversityDepartment of Pediatrics (Systems Medicine), Stanford UniversityDepartment of Pediatrics (Systems Medicine), Stanford UniversityDepartment of Biomedical Data Science, Stanford UniversityDepartment of Computer Science, Stanford UniversityDepartment of Neuroscience, Stanford UniversityDepartment of Computer Science, Stanford UniversityDepartment of Pediatrics (Systems Medicine), Stanford UniversityDepartment of Pediatrics (Systems Medicine), Stanford UniversityGraduate School of Education, Stanford UniversityDepartment of Computer Science, Stanford UniversityDepartment of Pediatrics (Systems Medicine), Stanford UniversityAbstract Standard medical diagnosis of mental health conditions requires licensed experts who are increasingly outnumbered by those at risk, limiting reach. We test the hypothesis that a trustworthy crowd of non-experts can efficiently annotate behavioral features needed for accurate machine learning detection of the common childhood developmental disorder Autism Spectrum Disorder (ASD) for children under 8 years old. We implement a novel process for identifying and certifying a trustworthy distributed workforce for video feature extraction, selecting a workforce of 102 workers from a pool of 1,107. Two previously validated ASD logistic regression classifiers, evaluated against parent-reported diagnoses, were used to assess the accuracy of the trusted crowd’s ratings of unstructured home videos. A representative balanced sample (N = 50 videos) of videos were evaluated with and without face box and pitch shift privacy alterations, with AUROC and AUPRC scores > 0.98. With both privacy-preserving modifications, sensitivity is preserved (96.0%) while maintaining specificity (80.0%) and accuracy (88.0%) at levels comparable to prior classification methods without alterations. We find that machine learning classification from features extracted by a certified nonexpert crowd achieves high performance for ASD detection from natural home videos of the child at risk and maintains high sensitivity when privacy-preserving mechanisms are applied. These results suggest that privacy-safeguarded crowdsourced analysis of short home videos can help enable rapid and mobile machine-learning detection of developmental delays in children.https://doi.org/10.1038/s41598-021-87059-4
spellingShingle Peter Washington
Qandeel Tariq
Emilie Leblanc
Brianna Chrisman
Kaitlyn Dunlap
Aaron Kline
Haik Kalantarian
Yordan Penev
Kelley Paskov
Catalin Voss
Nathaniel Stockham
Maya Varma
Arman Husic
Jack Kent
Nick Haber
Terry Winograd
Dennis P. Wall
Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detection
Scientific Reports
title Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detection
title_full Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detection
title_fullStr Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detection
title_full_unstemmed Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detection
title_short Crowdsourced privacy-preserved feature tagging of short home videos for machine learning ASD detection
title_sort crowdsourced privacy preserved feature tagging of short home videos for machine learning asd detection
url https://doi.org/10.1038/s41598-021-87059-4
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