Building a user profile data repository

A non-transitory machine-readable medium storing instructions that, when executed by one or more processors of a machine, cause the one or more processors to implement operations comprising:

• accessing, from a data repository, profile data of a first entity;
• determining, in a first determining operation, that a set of information items from the accessed profile data of the first entity are associated with a target activity, wherein the set of information items comprises a set of geographic location/timestamp tuples associated with the target activity, wherein determining that the set of information items from the accessed profile data of the first entity are associated with the target activity comprises:
• accessing a stored collection of geographic location/timestamp tuples associated with the target activity;
• and
• determining that, for at least a threshold number of the geographic location/timestamp tuples, the first entity was within a threshold distance of the geographic location in a tuple at a moment within a threshold time period from the timestamp in the tuple;
• determining, in a second determining operation, that the set of information items associated with the target activity includes a subset of information items associated with a second entity;
• creating or editing, within the data repository, profile data of the second entity based on the subset of information items in response to a determination, in the second determining operation, that the second entity is associated with the target activity;
• and
• providing a digital transmission of at least a portion of the profile data of the second entity, wherein the digital transmission comprises a map of geographic locations associated with geographic location/timestamp tuples from the subset of information items associated with the second entity.

A method comprising:

• accessing, from a data repository, profile data of a first entity;
• determining, in a first determining operation, that a set of information items from the accessed profile data of the first entity are associated with a target activity, wherein the set of information items comprises a set of geographic location/timestamp tuples associated with the target activity, wherein determining that the set of information items from the accessed profile data of the first entity are associated with the target activity comprises:
• accessing a stored collection of geographic location/timestamp tuples associated with the target activity;
• and
• determining that, for at least a threshold number of the geographic location/timestamp tuples, the first entity was within a threshold distance of the geographic location in a tuple at a moment within a threshold time period from the timestamp in the tuple;
• determining, in a second determining operation, that the set of information items associated with the target activity includes a subset of information items associated with a second entity;
• creating or editing, within the data repository, profile data of the second entity based on the subset of information items in response to a determination, in the second determining operation, that the second entity is associated with the target activity;
• and
• providing a digital transmission of at least a portion of the profile data of the second entity, wherein the digital transmission comprises a map of geographic locations associated with geographic location/timestamp tuples from the subset of information items associated with the second entity.