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Meta has announced a free tool to help platforms identify and remove violating content at scale.
The open source tool, called Hasher-Matcher-Actioner (HMA), “will help platforms identify copies of images or videos and take action against them en masse,” says Nick Clegg, Meta’s President, Global Affairs in the announcement.
As the name implies, use of the HMA tool involves hashing and matching images in a database. Briefly, the process works like this:
- The content (e.g., image or video) is labeled.
- HMA creates a digital fingerprint, or hash, of the content to be stored in a database.
- Content is run through the database to see if it matches content labeled as violating.
- Matches are reviewed.
The tool, Meta says, “will be especially useful for smaller companies who don’t have the same resources as bigger ones.”
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