Design Feed Ranking

Know the Vocabulary

This lesson uses the terms below many times. Read them once now, and come back here when a later section needs one.

• Feed: The scrolling list of posts a user sees when they open a social app. The system chooses the posts and their order.
• Funnel: A series of stages that turns a large set of items into a short list. Each stage handles fewer items, so it can spend more work on each one.
• Candidate: A post that an early stage has picked as worth scoring. Later stages choose among the candidates.