NDLI: Moving towards a real-time system for automatically recognizing stereotypical motor movements in individuals on the autism spectrum using wireless accelerometry

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Moving towards a real-time system for automatically recognizing stereotypical motor movements in individuals on the autism spectrum using wireless accelerometry

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Moving towards a real-time system for automatically recognizing stereotypical motor movements in individuals on the autism spectrum using wireless accelerometry

Content Provider	ACM Digital Library
Author	Goodwin, Matthew S. Intille, Stephen Erdogmus, Deniz Haghighi, Marzieh Tang, Qu Akcakaya, Murat
Abstract	This paper extends previous work automatically detecting stereotypical motor movements (SMM) in individuals on the autism spectrum. Using three-axis accelerometer data obtained through wearable wireless sensors, we compare recognition results for two different classifiers -- Support Vector Machine and Decision Tree -- in combination with different feature sets based on time-frequency characteristics of accelerometer data. We use data collected from six individuals on the autism spectrum who participated in two different studies conducted three years apart in classroom settings, and observe an average accuracy across all participants over time ranging from 81.2% (TPR: 0.91; FPR: 0.21) to 99.1% (TPR: 0.99; FPR: 0.01) for all combinations of classifiers and feature sets. We also provide analyses of kinematic parameters associated with observed movements in an attempt to explain classifier-feature specific performance. Based on our results, we conclude that real-time, person-dependent, adaptive algorithms are needed in order to accurately and consistently measure SMM automatically in individuals on the autism spectrum over time in real-word settings.
Starting Page	861
Ending Page	872
Page Count	12
File Format	PDF QT / MOV
ISBN	9781450329682
DOI	10.1145/2632048.2632096
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-09-13
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Autism Stockwell transform Stereotypical motor movements Accelerometer Activity recognition Pattern recognition Support vector machine Decision tree
Content Type	Video Text
Resource Type	Article

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