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The incompleteness of the Internet AS-level topology is the most serious pitfall of research studies concerning the Internet inter-domain ecosystem. In this demo we show two projects aimed at filling this gap by offering services to different type of users. The first is Portolan, a smartphone-based crowdsourcing system which provides an app for Android that volunteers can install to run traceroute...
Remarkable progress was made with smartphones in the last few years. Modern smartphones are now equipped with high-resolution cameras and various micro-electrical sensors that open up new mobile application possibilities. In this work, we address a critical task of reconstruct indoor large-scale 3D model from crowd-sourced images. We propose, design, and implement IndoorCrowd, a smartphone empowered...
As the advance of mobile devices, crowdsourcing has been successfully applied in many scenarios by employing distributed mobile devices to collectively monitor a diverse range of human activities and surrounding environment. Unfortunately, treating mobile devices as simple sensors that generate raw sensing data may lead to low efficiency because of excessive bandwidth occupation and additional computation...
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