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Are two users more likely to be friends if they share common interests? Are two users more likely to share common interests if they're friends? The authors study the phenomenon of homophily in the digital world by answering these central questions. Unlike the physical world, the digital world doesn't impose any geographic or organizational constraints on friendships. So, although online friends might...
The distance-based location area update mechanism of CDMA 1X EV-DO achieves circular location areas around the cell in which the mobile makes the update. In this paper, we enhance this technique by achieving arbitrary location area shapes tailored to the known mobility patterns of mobiles. We develop a heuristic iterative algorithm that searches for the optimal shape which maximizes the time between...
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