Cocoon: ארכיטקטורה לאימון פרטי

תקציר מקורי באנגליתarXiv:2510.07304v2 Announce Type: replace-cross Abstract: Machine learning (ML) models memorize and leak training data, causing serious privacy issues to data owners. Training algorithms with differential privacy (DP) have been gaining attention as a solution. However, these algorithms add noise at each training iteration and degrade accuracy, limiting their real-world adoption. To improve accuracy, a new family of approaches adds carefully designed correlated noises, so that noises cancel out each other across iterations. We performed an extensive characterization study of these new mechanisms and show they incur non-negligible overheads when the model is relatively large or uses large embedding tables compared to the hardware capacity. Motivated by the analysis, we propose Cocoon, a fram