With the widespread adoption of smartphones, we have observed an increasing popularity
of Location-Based Services (LBSs) in the past decade. To improve user experience, LBSs …

The balance between protecting user privacy while providing cost-effective devices that are
functional and usable is a key challenge in the burgeoning Internet of Things (IoT). In …

Abstract The vision of Ubiquitous Computing (UbiComp) foresees a future of context-aware
smart systems which unobtrusively and invisibly support users in their daily activities. Those …

The localization abilities of smartphones have provided a huge boost to the popularity of
geosocial applications, which facilitate social interaction between users geographically …

This paper introduces a new way of delivering local messages to mobile subscribers. Our
application presents a mashup from passive monitoring for smart phones and cloud-based …

Despite the proliferation of location-based services on mobile platforms, privacy concerns
still refrain many people from using them regularly. Moreover, current location sharing tools …

The emergence of ubiquitous computing (UbiComp) environments has increased the risk of
undesired access to individuals' physical space or their information, anytime and anywhere …