Author

Jin Liu

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#machine learning Preprint Oct 2026

Stable-Plastic Subspace Construction for Differentially Private Continual LoRA

Continual learning (CL) adapts pretrained models to a sequence of tasks while retaining knowledge acquired from earlier tasks. When task data are sensitive, differential privacy (DP) provides record-level protection, but maintaining both adaptation and retention under privacy constraints remains challenging. We study t...

Jin Liu, Ning Xi, Y. Miao et al. · 0 citations

Preprint Aug 2026

When Privacy Hurts Mergeability: Geometry-Aware Model Merging under Differential Privacy

Experiments on vision and language tasks across multiple privacy budgets show that DP-Merging consistently improves private merged-model performance while preserving the privacy guarantees of the underlying DP fine-tuning procedures.

Jin Liu, Jun-Kang Liu, Ning Xi et al. · 0 citations