Yuguang Zeng

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Nowadays it is not uncommon to have a computer with a large wall-sized display. Such a computer provides a space that is large enough for multiple users to collaborate before the display. However, the current operating systems do not support multiple user collaboration well. For example, they allow only one cursor and only one context menu at one time. In(More)
—Human mobility, hence the movement pattern of mobile devices, often confines to relatively local geographic areas. Such a movement pattern reduces the opportunities for a message to be disseminated to a more global geographical region using the encounter-based " store-carry-forward " routing approach. On the other hand, different local areas often overlap(More)
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