作者: Steven L. Petersen , Sean T. Purdy , Kenneth Jennings
DOI:
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摘要: A system and method for tracking crowds of users are provided. In one embodiment, a central system, which includes or more servers, operates to obtain current locations mobile devices. Based on the users, forms users. As result movement corresponding location updates, move change over time. order track at least some crowds, crowd snapshots those created time stored. The preferably maintain anonymity in created. Thereafter, may be used generate data select crowds.