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With the recent popularization of smart phones, context sharing systems in mobile environment attract attention of people. Mobile context sharing systems can share more information than web-based social network services because they have various sensors. For sharing high-level contexts such as activity and emotion, a user had to manually annotate them in previous works. This paper proposes a mobile...
We envision a sensor-enabled mobile system to assist organizers and participants of public events in emergencies and evacuation situations using human computing principles. By autonomously detecting elements of emergent collective behavior (e.g. clogging, queuing, herding), efficient interaction and information sharing with specific groups in the crowd is enabled. We have previously shown the technological...
Available doorbell interphone systems are designed under the assumption that residents would be at home to enable the communication between them and their visitors. However, people spend a large fraction of their time away from home, thus undermining the basic assumptions of existing doorbell solutions. Recent developments in 3GPP Home Node B (HNB or Femtocell) and home gateway technologies, along...
Virtual worlds have typically been isolated from the real environment, treated as separate parallel worlds. In this paper we show a scenario where context data collection from mobile devices can be used for augmenting virtual worlds with real-life data. Life-logging elements are used to control an avatar, in a virtual world, as a way to re-play experiences. The prototype system, which was implemented...
Mobile phones or smartphones are rapidly becoming the central computer and communication device in people's lives. Application delivery channels such as the Apple AppStore are transforming mobile phones into App Phones, capable of downloading a myriad of applications in an instant. Importantly, today's smartphones are programmable and come with a growing set of cheap powerful embedded sensors, such...
Modern Smartphones are the fastest growing computing platforms capable of consuming Web services. However, due to their form factor these mobile computing devices face many challenges and constrains when engaging service providers. How to overcome these challenges and how to link smartphones to the service cloud is one of the key issues that will have a major impact on the further growth of the software-as-a-service...
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