9. The computer-implemented method of claim 1 , further comprising, at a previous time before identifying the particular physical location, defining a location description for the particular physical location based on a detected context for the mobile computing device at the previous time and additional information that indicates a name for the location description.
9. The computer-implemented method of claim 1 , further comprising, at a previous time before identifying the particular physical location, defining a location description for the particular physical location based on a detected context for the mobile computing device at the previous time and additional information that indicates a name for the location description. 11. The computer-implemented method of claim 9 , wherein the additional information comprises a location specified as part of a scheduled activity in an electronic calendar associated with the mobile computing device.