Provided is a process including segmenting a representation into a set of tiles and obtaining a set of geolocations. The process includes, for each tile, determining a respective amount of devices within the respective tile to form a set of weights. The process also includes assigning each tile of a subset of the set of tiles with a set of groups based on the set of weights, building a first map based on the set of groups, and building a second map by traversing the first map. The process also includes determining a first and second subset of devices by traversing the second map, determining whether a second tile is to be assigned to a first or second group based on the first and second subset of devices, assigning the second tile to the first group, and building a region map comprising the set of groups.