Abstract: The formulation of a profile group of users by defining segments using a function as applied to a single attribute, and combining them with set operations. The segments may be populated by applying the selected function against the selected attribute against multiple users. Then, the profile groups build upon the segments and are populated by applying the selected operations against the selected combination of segments. This represents an efficient mechanism for formulating profile groups based on user attributes.

Abstract: The real-time updating of segments of users defined by applying a function to at least one user attribute. In response to an event, the segment may be updated in real-time to either or both of removing the user from a segment, or adding a user to a segment. In one embodiment, user profile groups are populated by performing combinatory operations upon multiple segments. In that case, any profile group that depends on the updated segment may also be updated. Thus, operations that rely upon segment and/or profile group membership need not wait until the next calculation of the segment and profile group membership before correctly reflecting the newly discovered user attributes.

Abstract: The formulation of a profile group of users by defining segments using a function as applied to a single attribute, and combining them with set operations. The segments may be populated by applying the selected function against the selected attribute against multiple users. Then, the profile groups build upon the segments and are populated by applying the selected operations against the selected combination of segments. This represents an efficient mechanism for formulating profile groups based on user attributes.