01256nas a2200217   4500000000100000000000100001008004100002260001200043653002100055653001900076653001900095653002100114100001900135700001700154245014700171856009500318300001000413490000600423520059500429022001401024       2018                            d  c12/201810aMachine Learning10aHuman Activity10aAccelerometers10aWearable Sensors1 aPekka Siirtola1 aJuha Röning00aRevisiting “Recognizing Human Activities User- Independently on Smartphones Based on Accelerometer Data” – What Has Happened Since 2012?  uhttp://www.ijimai.org/journal/sites/default/files/files/2018/12/ijimai_5_3_2_pdf_84569.pdf  a17-210 v53 aOur article “Recognizing human activities user-independently on smartphones based on accelerometer data” was published in the International Journal of Interactive Multimedia and Artificial Intelligence (IJIMAI) in 2012. In 2018, it was selected as the most outstanding article published in the 10 years of IJIMAI life. To celebrate the 10th anniversary of IJIMAI, in this article we will introduce what has happened in the field of human activity recognition and wearable sensor-based recognition since 2012, and especially, this article concentrates on introducing our work since 2012.  a1989-1660