Passive check-in

A computer-implemented system comprising:

• at least one memory configured to store instructions;
• and
• at least one processor coupled to the memory at a server computer system, the processor being configured to, in response to execution of the instructions, cause the system to perform operations, the operations comprising:
• obtain a location stream corresponding to a mobile device of a user represented by a user profile, the mobile device accessing one or more web sites;
• determine a plurality of boundary crossings of a geo-fence of the user based on comparing data included in the location stream;
• track periods of time during which the user is within the geo-fence based on the location stream and the plurality of boundary crossings;
• track user behavior while the user is within the geo-fence based on one or more types of tracking selected from a group of tracking types consisting of:
• tracking online user behavior while the user is within the geo-fence based on access of the mobile device of one or more websites during the period of time;
• and tracking offline user behavior while the user is within the geo-fence based on offline behavior tracked by online services during the period of time;
• determine special locations information for an area within the geo-fence based on the tracking of the user behavior and based on durations of the periods of time and a number of the plurality of boundary crossings, and
• include the special locations information into the user profile.

One or more machine-readable non-transitory storage media having instruction data to cause a system to perform operations comprising:

• obtaining, by a server computer system, a location stream corresponding to a mobile device of a user represented by a user profile, the mobile device accessing one or more web sites;
• comparing data representing a current location of the mobile device to data representing an earlier location of the mobile device using the obtained location stream;
• determining a boundary crossing of a geo-fence based on the result of the comparison;
• in response to determining the boundary crossing, tracking user behavior while the user is within the geo-fence based on one or more types of tracking selected from a group of tracking types consisting of:
• tracking online user behavior while the user is within the geo-fence based on access of the mobile device of one or more websites during the period of time;
• and tracking offline user behavior while the user is within the geo-fence based on offline behavior tracked by online services during the period of time;
• identifying an area within the geo-fence as a type of special location with respect to the user based on the tracking of the user behavior;
• determining special locations information for the area within the geo-fence based on the identified type of special location and the tracking of the user behavior;
• and
• including the special locations information into the user profile.