Using these definitions, a provider might generate for every individual
i a set of locations at spatial scale
a for every time bin
t in the time window
T. The values for
a can be directly mapped to larger regions of aggregation
A. For example, for a given user, one can calculate their location as defined by presence in a 600 m × 600 m Bing Tile (
a: zoom level 16)
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for every 30 min segment (
t) over the course of 24 h (
T). Every Bing Tile is also mapped onto a county
A for which all data are aggregated. We define this set of time-specific locations as