Evaluation of Methods for Estimating Fractal Dimension in Motor Imagery-Based Brain Computer Interface
المؤلفون المشاركون
Lee, Gin Chong
Samraj, Andrews
Loo, Chu Kiong
المصدر
Discrete Dynamics in Nature and Society
العدد
المجلد 2011، العدد 2011 (31 ديسمبر/كانون الأول 2011)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2011-11-30
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
A brain computer interface BCI enables direct communication between a brain and a computer translating brain activity into computer commands using preprocessing, feature extraction, and classification operations.
Feature extraction is crucial, as it has a substantial effect on the classification accuracy and speed.
While fractal dimension has been successfully used in various domains to characterize data exhibiting fractal properties, its usage in motor imagery-based BCI has been more recent.
In this study, commonly used fractal dimension estimation methods to characterize time series Katz's method, Higuchi's method, rescaled range method, and Renyi's entropy were evaluated for feature extraction in motor imagery-based BCI by conducting offline analyses of a two class motor imagery dataset.
Different classifiers fuzzy k-nearest neighbours FKNN, support vector machine, and linear discriminant analysis were tested in combination with these methods to determine the methodology with the best performance.
This methodology was then modified by implementing the time-dependent fractal dimension TDFD, differential fractal dimension, and differential signals methods to determine if the results could be further improved.
Katz's method with FKNN resulted in the highest classification accuracy of 85%, and further improvements by 3% were achieved by implementing the TDFD method.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Loo, Chu Kiong& Samraj, Andrews& Lee, Gin Chong. 2011. Evaluation of Methods for Estimating Fractal Dimension in Motor Imagery-Based Brain Computer Interface. Discrete Dynamics in Nature and Society،Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-493567
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Loo, Chu Kiong…[et al.]. Evaluation of Methods for Estimating Fractal Dimension in Motor Imagery-Based Brain Computer Interface. Discrete Dynamics in Nature and Society No. 2011 (2011), pp.1-8.
https://search.emarefa.net/detail/BIM-493567
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Loo, Chu Kiong& Samraj, Andrews& Lee, Gin Chong. Evaluation of Methods for Estimating Fractal Dimension in Motor Imagery-Based Brain Computer Interface. Discrete Dynamics in Nature and Society. 2011. Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-493567
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-493567
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر