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Autism children gait classification using intelligent techniques / Suryani Ilias

Recently, gait patterns of autistic children are of interest in the gait community in order to identify significant gait parameter namely the three-dimensional (3D) gait features. The development of gait patterns via assessing gait deviations in autistic children can help clinicians and researchers...

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Main Author: Ilias, Suryani
Format: Thesis
Language:English
Published: 2018
Online Access:https://ir.uitm.edu.my/id/eprint/79396/1/79396.pdf
https://ir.uitm.edu.my/id/eprint/79396/
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spelling my.uitm.ir.793962024-08-06T09:42:35Z https://ir.uitm.edu.my/id/eprint/79396/ Autism children gait classification using intelligent techniques / Suryani Ilias Ilias, Suryani Recently, gait patterns of autistic children are of interest in the gait community in order to identify significant gait parameter namely the three-dimensional (3D) gait features. The development of gait patterns via assessing gait deviations in autistic children can help clinicians and researchers to differentiate gait pattern abnormality in diagnosing, clinical decision-making and planning. Understanding the characteristics and identifying gait pattern is essential in order to distinguish normal as well as abnormal gait pattern. Hence in this research, the application of machine learning approach specifically Neural Network (NN) and Support Vector Machine (SVM) along with Singular Value Decomposition (SVD) and Linear Discriminant Analysis (LDA) as feature extractions are evaluated and validated in discriminating gait features between normal subjects and autistic children. Gait features of 32 normal and 12 autistic children were recorded and analyzed using VICON motion analysis system and force platform during normal walking. Here, twenty-one gait features describing the three types of gait characteristics namely basic, kinetic and kinematic in these children are extracted. Next, these three category gait parameters acted as inputs to both classifiers. The performance of NN and SVM in classifying the gait patterns between autistics and normal children as classifier are evaluated. The ability of SVM as classifier are investigated using three different kernel functions specifically linear, polynomial, and radial basis. In addition, the classifiers performance is validated by computing both values of sensitivity and specificity. Results showed that LDA as feature extraction has the highest accuracy with kinematic parameters as gait features along with polynomial function as kernel for the SVM classifier with 100% accuracy. This finding proven that LDA is suitable as feature extraction and SVM is indeed apt as gait classifier in classifying the gait pattern autistics and normal children. 2018 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/79396/1/79396.pdf Autism children gait classification using intelligent techniques / Suryani Ilias. (2018) Masters thesis, thesis, Universiti Teknologi MARA (UiTM).
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
description Recently, gait patterns of autistic children are of interest in the gait community in order to identify significant gait parameter namely the three-dimensional (3D) gait features. The development of gait patterns via assessing gait deviations in autistic children can help clinicians and researchers to differentiate gait pattern abnormality in diagnosing, clinical decision-making and planning. Understanding the characteristics and identifying gait pattern is essential in order to distinguish normal as well as abnormal gait pattern. Hence in this research, the application of machine learning approach specifically Neural Network (NN) and Support Vector Machine (SVM) along with Singular Value Decomposition (SVD) and Linear Discriminant Analysis (LDA) as feature extractions are evaluated and validated in discriminating gait features between normal subjects and autistic children. Gait features of 32 normal and 12 autistic children were recorded and analyzed using VICON motion analysis system and force platform during normal walking. Here, twenty-one gait features describing the three types of gait characteristics namely basic, kinetic and kinematic in these children are extracted. Next, these three category gait parameters acted as inputs to both classifiers. The performance of NN and SVM in classifying the gait patterns between autistics and normal children as classifier are evaluated. The ability of SVM as classifier are investigated using three different kernel functions specifically linear, polynomial, and radial basis. In addition, the classifiers performance is validated by computing both values of sensitivity and specificity. Results showed that LDA as feature extraction has the highest accuracy with kinematic parameters as gait features along with polynomial function as kernel for the SVM classifier with 100% accuracy. This finding proven that LDA is suitable as feature extraction and SVM is indeed apt as gait classifier in classifying the gait pattern autistics and normal children.
format Thesis
author Ilias, Suryani
spellingShingle Ilias, Suryani
Autism children gait classification using intelligent techniques / Suryani Ilias
author_facet Ilias, Suryani
author_sort Ilias, Suryani
title Autism children gait classification using intelligent techniques / Suryani Ilias
title_short Autism children gait classification using intelligent techniques / Suryani Ilias
title_full Autism children gait classification using intelligent techniques / Suryani Ilias
title_fullStr Autism children gait classification using intelligent techniques / Suryani Ilias
title_full_unstemmed Autism children gait classification using intelligent techniques / Suryani Ilias
title_sort autism children gait classification using intelligent techniques / suryani ilias
publishDate 2018
url https://ir.uitm.edu.my/id/eprint/79396/1/79396.pdf
https://ir.uitm.edu.my/id/eprint/79396/
_version_ 1806692685089603584
score 13.211869

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