Before revision:  HAR is one of the most promising assistive technology tools to support elderly's daily life . However, this class of algorithms requires large amounts of data. Furthermore, not all the HAR application fields generate a significant amount of data and not all of them provide the computational power that DL models in HAR require .
After revision:  HAR is one of the most promising assistive technology tools to support elderly's daily life by monitoring their cognitive and physical function through daily activities .