WASET
    Eu Tteum Ha and  Kwang Ryel Ryu,  Activity Recognition by Smartphone Accelerometer Data Using Ensemble Learning Methods.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2014, vol. 86(2). 480 - 483
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10002280.