Jiheon Choi — BlogNotes on HPC, distributed AI, and secure ML by Jiheon Choi.https://jiheonchoi.com/2026-07-16T00:00:00ZJiheon ChoiFederated Learning: Training Models Without Collecting the Datahttps://jiheonchoi.com/blog/2026-07-16-federated-learning.html2026-07-16T00:00:00Z2026-07-16T00:00:00ZHospitals accumulate patient records; phones accumulate typing habits. Yet pooling that data in one place is often impossible — regulation forbids it, moving…