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Automatic selection of a representative trial from multiple measurements using Principle Component Analysis
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4479923
Author(s) Schweizer, Katrin; Cattin, Philippe C.; Brunner, Reinald; Müller, Bert; Huber, Cora; Romkes, Jacqueline
Author(s) at UniBasel Romkes, Jacqueline
Bracht-Schweizer, Katrin
Year 2012
Title Automatic selection of a representative trial from multiple measurements using Principle Component Analysis
Journal Journal of Biomechanics
Volume 45
Number 13
Pages / Article-Number 2306-9
Mesh terms Female; Gait, physiology; Humans; Male; Models, Biological; Models, Statistical; Walking, physiology
Abstract Experimental data in human movement science commonly consist of repeated measurements under comparable conditions. One can face the question how to identify a single trial, a set of trials, or erroneous trials from the entire data set. This study presents and evaluates a Selection Method for a Representative Trial (SMaRT) based on the Principal Component Analysis. SMaRT was tested on 1841 data sets containing 11 joint angle curves of gait analysis. The automatically detected characteristic trials were compared with the choice of three independent experts. SMaRT required 1.4s to analyse 100 data sets consisting of 8±3 trials each. The robustness against outliers reached 98.8% (standard visual control). We conclude that SMaRT is a powerful tool to determine a representative, uncontaminated trial in movement analysis data sets with multiple parameters.
Publisher Elsevier
ISSN/ISBN 0021-9290 ; 1873-2380
edoc-URL https://edoc.unibas.ch/64255/
Full Text on edoc No
Digital Object Identifier DOI 10.1016/j.jbiomech.2012.06.012
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/22771230
ISI-Number WOS:000308854400020
Document type (ISI) Clinical Trial, Journal Article
 
   

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