A. Albert

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The exponential growth of the WorldWide Web has transformed it into an ecology of knowledge in which highly diverse information is linked in an extremely complex and arbitrary manner. But even so, as we show here, there is order hidden in the web. We find that web pages are distributed among sites according to a universal power law: many sites have only a(More)
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This paper presents a robotic system for autonomously scanning wall surfaces by means of inductive, capacitive and AC measurements in order to gather information about flush-mounted power lines, water pipes and cavities. From these data the system generates a 3D map with in-wall information. Algorithms for surface scanning are described enabling robust(More)
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