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Bibliographic Details
Main Authors: De La Fuente, Neil, Pilligua, Maria, Vidal, Daniel, Soutiff, Albin, Curreli, Cecilia, Cremers, Daniel, Barsky, Andrey
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2505.07450
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Table of Contents:
  • Continual learning (CL) aims to learn a sequence of tasks without forgetting prior knowledge, but gradient updates for a new task often overwrite the weights learned earlier, causing catastrophic forgetting (CF). We propose Prototype-Augmented Hypernetworks (PAH), a framework where a single hypernetwork, conditioned on learnable task prototypes, dynamically generates task-specific classifier heads on demand. To mitigate forgetting, PAH combines cross-entropy with dual distillation losses, one to align logits and another to align prototypes, ensuring stable feature representations across tasks. Evaluations on Split-CIFAR100 and TinyImageNet demonstrate that PAH achieves state-of-the-art performance, reaching 74.5 % and 63.7 % accuracy with only 1.7 % and 4.4 % forgetting, respectively, surpassing prior methods without storing samples or heads.