How does Facebook use artificial intelligence to moderate content?

When we find content (example: post, comment, story) that goes against our Community Standards, we remove it from Facebook. If the content doesn’t go against our Community Standards but may be inappropriate, disrespectful, or offensive, we may do things like reduce the distribution of the content on Facebook or mark it as sensitive. Our Community Standards define what is and isn't allowed on Facebook, and they apply all over the world. They're designed to encourage expression and create a safe environment on Facebook.
To find, review, and take action on content that may go against our Community Standards, we use technology and human reviewers. Artificial intelligence (AI) technology is central to our content review process. AI can detect and remove content that goes against our Community Standards before anyone reports it. Other times, our technology sends content to human review teams to take a closer look and make a decision on it. These thousands of reviewers around the world focus on content that is most harmful to Facebook users.
How does artificial intelligence make decisions about content?
AI teams start by building machine learning models that can do things like recognize what’s in a photo or analyze the text of a post. For example, AI models may be built to learn whether a piece of content contains nudity or graphic content. Those models may then determine whether to take action on the content, such as removing it from the platform or reducing its distribution.
Sometimes, a piece of content requires further review and our AI sends it to a human review team to take a closer look. In these cases, review teams make the final decision, and our technology learns and improves from each decision. Over time—after learning from thousands of human decisions—the technology gets better.
Our policies may change over time to keep up with changes in social norms, language and our products and services. As a result, our content review process constantly evolves.
If we’ve taken down a piece of your content that you don’t believe goes against our Community Standards, you can request a review.
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