Targeting questions to users of a social networking system

摘要

Users of a social networking system post questions for other users to answer. Questions are automatically tagged based on keywords extracted from text within the posted questions as well as user-selected tags. Users also browse questions asked by other users on the social networking system using an interface that displays questions by topics and sub-topics. Answers may be voted on and sorted by social information related to the browsing user. Affinities for tags are recorded based on users' interactions with the question and answer service. Affinities for tags may also be used to target questions to other users and sort answers.

主权项

1. A method comprising:
retrieving profile information related to a user of the social networking system, the profile information including the user's affinity and the user's connections' affinities for each of a plurality of tags, each tag associated with a question topic; selecting a set of questions stored in the social networking system based on question topics associated with the plurality of tags and the user's connections' affinities for each of the plurality of tags; for each question in the set of questions:
determining a score for the question based on the user's affinities for a subset of the plurality of tags associated with the question;adjusting the score for the question based on one or more activities performed by the user in relation to another question associated with the subset of the plurality of tags; sorting the questions based on the adjusted scores for the questions; and providing one or more of the sorted questions in a question interface for display to the user.