Facebook, Inc.

Yi Guo

Li Zhang

Gregory Matthew Marra

Chao Ruan

A social networking system selects content items previously presented to a user for presentation to the user along with content items that were not previously presented. The social networking system selects candidate content items as previously-presented content items satisfying one or more criteria. One or more indices each associated with one or more attributes are generated that include candidate content items having attributes associated with an index. Candidate content items in an index are ranked based on a likelihood of the user interacting with the candidate content items in the index, and one or more candidate content items are selected from the index for presentation based on the ranking. The candidate content items selected from the index are presented to the user along with additional content items not previously-presented to the user.

Growing community of inventors

Sunnyvale, CA, United States of America

Yi Guo