Periodically averaging per-dataset LoRA adapters into a fixed Whisper base reduces catastrophic forgetting in rehearsal-free continual learning for code-switched ASR, with modest gains over a weight-averaging plus distillation baseline.
Each dataset Dt consists of samples (xi t,y i t) be- ing the input utterances and labels respectively
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Weight Factorization and Centralization for Continual Learning in Speech Recognition
Periodically averaging per-dataset LoRA adapters into a fixed Whisper base reduces catastrophic forgetting in rehearsal-free continual learning for code-switched ASR, with modest gains over a weight-averaging plus distillation baseline.