GPS data cleaning and analysis based on YouSense mobile application

In the last decade, mobile communications technologies has pervaded our society. In order to assess and analyze the location o f individuals and populations in this mobile world, mobile positioning or mobile telephone tracking is proposed as a monitoring tool to sense the movement o f people. In this paper, a monitoring tool called YouSense, a movement and behavior data collection mobile application, has been used. Our work mainly focus on YouSense GPS data cleaning, including filtering out wrong location information and filling the gaps when GPS is switched off. We set up several filter criteria for general YouSense GPS data cleaning through statistic analysis of different users' dataset. After data cleaning, we have also analyzed the location o f meaningful places for mobile users, such as home and work anchor points.