Continual Learning with Elastic Regularization and Synthetic Replay for Federated MLLM Fine-Tuning
FedCMM addresses catastrophic forgetting in federated fine-tuning of Multimodal Large Language Models (MLLMs) by integrating three safeguards: modality-aware parameter regularization, data-level synthetic replay, and similarity-aware gradient aggregation. This holistic approach ensures robust adaptation to new tasks across distributed networks while preserving knowledge from previous tasks.