Differential Privacy for Hugging Face Trainers – Without Rewriting Your Training Loop - The JetBrains Blog
Blog post from JetBrains
JetBrains Research has open-sourced DPTrainer, a library that integrates Opacus differential privacy capabilities with Hugging Face’s Trainer ecosystem, allowing developers to use privacy-preserving DP-SGD without rewriting training loops or modifying trainer code. Differential privacy limits the influence of any individual training example through per-sample gradient clipping and calibrated noise, helping protect sensitive data from memorization and membership inference attacks while introducing a trade-off between privacy and model performance governed by a cumulative privacy budget. DPTrainer extends the standard Trainer with configurable privacy arguments and can dynamically patch specialized Trainer subclasses such as TRL’s DPOTrainer and SFTTrainer, preserving their task-specific behavior while adding DP-SGD. It automates per-sample gradient computation, optimizer wrapping, Poisson-sampled data loading, noise calibration, privacy accounting, checkpoint state restoration, and budget-aware early stopping, aiming to make auditable differential privacy training more practical for teams developing transformers on sensitive data.
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