MetaMeta

Good Questions, Real Answers: How Does Facebook Use Machine Learning to Deliver Ads?

Jun 11, 2020·4 min read

Facebook decides ads to show based on audience targeting by advertisers and an ad auction.
Advertisers set targets via self-service tools using demographics, behaviors, or custom lists.
Ads enter an auction where total value score combines bid, estimated action rate (predicted by machine learning from user behavior on/off Facebook), and ad quality score (from feedback and low-quality signals).
Machine learning improves over time with more data.
Users can control ads via Ad Preferences, 'Why Am I Seeing This', and Off-Facebook Activity settings.

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