US Patent 9380073 Reputation system in a default network

A system and a method are disclosed for computing a reputation score for user profiles of a social network according to actions taken by user profiles of the social network. The reputation score may be based on interactions of a user profile with a content item or based on interactions of user profiles with other user profiles. Actions may be weighted differently in calculating a reputation score as a sum of products of action counts and actions weights. Reputation scores calculated may be used to rank user profiles and to determine reputation levels for user profiles based on exceeding a threshold in reputation score or reputation ranking.