UDAT: User Discrimination Using Activity-Time Information
Snigdha Das, Dibya Jyoti Roy, Subrata Nandi, Sandip Chakraborty, Bivas Mitra · 2017
This paper explores the feasibility of automatically discriminating users from the activity as well as temporal information of their daily routine. We observe that everyone pursues a daily semi-regular activity pattern. Based on this observation, we have developed a system UDAT and experimented on Microsoft Geolife as well as UDAT datasets. With Geolife transportation activity log and UDAT motion-static activity log, the system achieves 73.3% and 80.68% accuracy, respectively. Although the overall system accuracy is moderate, the system achieves the highest accuracy when the users belong to the different activity buckets. This signifies the utility of two-phase classification for user discrimination.