Vitamin D deficiency has become a social problem in many countries as modern people's
indoor living time increases and their exposure to natural light shortens. In order to solve this …

In this paper, we propose a Global Navigation Satellite System (GNSS) component
activation model for mobile tracking devices that automatically detects indoor/outdoor …

Indoor-outdoor (IO) detection provides very useful hints for a mobile device to perform
context-aware services. To that end, GPS presents a viable solution by relating a device's IO …

Recently, the research on the relationship between geographical environment exposure and
public health has attracted notable attention. The concept of geographical environment …

The collection of personal information by organizations has become increasingly essential
for social interactions. Nevertheless, according to the GDPR (General Data Protection …

Physical distancing is one of the most effective measures for limiting the spreading of the
COVID-19 disease. Smartphones, being carried by their owners most of the time, are …

Cell phones with GPS function as well as GPS loggers are widely used and we can easily
obtain users' geographic information. Now classifying the measured GPS positions into …

With rapid adoption of smartphones, context detection is becoming increasingly important to
enable new and sophisticated context-aware mobile apps and provide better …

This thesis shows a viable machine learning model that detects Indoor or Outdoor on
smartphones. The model was designed as a classification problem and it was trained with …

Correctly understanding microarchitectural bottlenecks is important to optimize performance
and energy of OoO (Out-of-Order) processors. Although CPI (Cycles Per Instruction) stack …