Pinterest
Fine-tuning

Safe and Efficient Multi-Epoch Embedding Training

Our short summary of Pinterest’s engineering write-up. The full story, with all the detail, is on their blog.

Read the full write-up on medium.com (opens in a new tab)

Problem

Fine‑tuning embeddings for only one epoch limited model quality on fresh data.

Solution

Created a multi‑epoch training pipeline that pre‑trains ID embeddings with a contrastive objective and then fine‑tunes them safely, avoiding memorization.

Want the architecture, code and numbers? They’re in the original post.

Read the full write-up on medium.com (opens in a new tab)

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