1. A method comprising: identifying, at a server system, a plurality of graphical interface items, each of the plurality of graphical interface items corresponding to a point of interest (POI) on a map, wherein the map is associated with an initial map scale; receiving an indication of a change in the map scale to a new map scale; determining that the plurality of graphical interface items are overlapping when the map is in the new map scale; generating a composite representation that represents a plurality of POIs in response to determining that the plurality of graphical interface items are overlapping, wherein the composite representation is generated based at least in part upon one or more importance values associated with one or more of the plurality of POIs; and causing the generated composite representation to be displayed on a display of a computing device.