The success of the Web and of portable devices has made popular the idea that any information could be made available to anybody, anytime, and anywhere. Other paradigms are taking...
Ubiquitous computing architectures enable interaction and collaboration in multi-user applications. We explore the challenges of integrating the disparate services required in such...
Romain Pellerin, Nicolas Bouillot, Tatiana Pietkie...
Reverse Turing tests, or CAPTCHAs, have become an ubiquitous defense used to protect open Web resources from being exploited at scale. An effective CAPTCHA resists existing mechan...
Marti Motoyama, Kirill Levchenko, Chris Kanich, Da...
Context-awareness has become a desired key feature of today’s mobile systems, yet, its realization still remains a challenge. On the one hand, mobile computing provides great po...
Lukasz Juszczyk, Harald Psaier, Atif Manzoor, Scha...
In this paper, we propose a new paradigm for local communication between devices in Ubiquitous Computing environments, assuming a multitude of computerized everyday appliances comm...