TMMP: Efficient Continual Learning via Mixture of LoRA Experts and Top Maximum Magnitude Parameter Fusion
摘要
Continual learning systems must handle sequential tasks while preserving previously acquired knowledge-a challenge often hindered by catastrophic forgetting. We propose TMMP (Top Maximum Magnitude Parameters), which leverages task-specific low-rank adapters (LoRA) within a Mixture of Experts (MoE) framework alongside a strategic model merging strategy. TMMP creates dedicated expert modules for each sequential task and employs a parameter fusion technique that selectively merges weights based on magnitude significance. This approach minimizes interference between tasks while maximizing knowledge retention. We evaluate TMMP on class-incremental learning scenarios using CIFAR100 and TinyImageNet benchmark datasets. Our experimental results demonstrate that TMMP outperforms state-of-the-art methods in accuracy while significantly reducing forgetting, particularly when handling long task sequences. The parameter-efficient MoE architecture combined with strategic model merging mechanism provides an effective solution for continual learning in vision-language models.