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Great cover on the Apple Health product.

I spent several hours studying and creating a visual guide on how Apple uses machine learning to recognize people in photos. 🍎

TL;DR: Apple uses contrastive learning, embeddings, and clustering to recognize people across a diverse demographic.

All done without data ever leaving your device.

Here is a visual guide covering the technical details:

https://codecompass00.substack.com/p/apple-private-on-device-ml-person-recognition

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