G06N504
Please help me predict the CPC LABEL for this patentPATENT ABSTRACT: A method for inferring a relationship between a first user and an area is disclosed, where the user is associated with one or more user devices. The method comprises retrieving event records having user device information corresponding to the user devices, and inferring, based on the event records, a relationship between the user and the area. A method for determining the presence of users at a location of a plurality of locations organised in a hierarchical structure is also disclosed. The method comprises receiving an indication of a location selected from the hierarchical structure, determining nodes associated with the selected location, retrieving event records from each node, and determining, based on the retrieved records, a number of users located at the selected location.