Distillation-Guided Structural Transfer for Continual Learning Beyond Sparse Distributed Memory

Fuente: arXiv
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Autores principales: Xue, Huiyan, Ran, Xuming, Li, Yaxin, Xu, Qi, Li, Enhui, Xu, Yi, Zhang, Qiang
Formato: Preprint
Publicado: 2025
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author Xue, Huiyan
Ran, Xuming
Li, Yaxin
Xu, Qi
Li, Enhui
Xu, Yi
Zhang, Qiang
author_facet Xue, Huiyan
Ran, Xuming
Li, Yaxin
Xu, Qi
Li, Enhui
Xu, Yi
Zhang, Qiang
contents Sparse neural systems are gaining traction for efficient continual learning due to their modularity and low interference. Architectures such as Sparse Distributed Memory Multi-Layer Perceptrons (SDMLP) construct task-specific subnetworks via Top-K activation and have shown resilience against catastrophic forgetting. However, their rigid modularity limits cross-task knowledge reuse and leads to performance degradation under high sparsity. We propose Selective Subnetwork Distillation (SSD), a structurally guided continual learning framework that treats distillation not as a regularizer but as a topology-aligned information conduit. SSD identifies neurons with high activation frequency and selectively distills knowledge within previous Top-K subnetworks and output logits, without requiring replay or task labels. This enables structural realignment while preserving sparse modularity. Experiments on Split CIFAR-10, CIFAR-100, and MNIST demonstrate that SSD improves accuracy, retention, and representation coverage, offering a structurally grounded solution for sparse continual learning.
format Preprint
id arxiv_https___arxiv_org_abs_2512_15267
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Distillation-Guided Structural Transfer for Continual Learning Beyond Sparse Distributed Memory
Xue, Huiyan
Ran, Xuming
Li, Yaxin
Xu, Qi
Li, Enhui
Xu, Yi
Zhang, Qiang
Machine Learning
Sparse neural systems are gaining traction for efficient continual learning due to their modularity and low interference. Architectures such as Sparse Distributed Memory Multi-Layer Perceptrons (SDMLP) construct task-specific subnetworks via Top-K activation and have shown resilience against catastrophic forgetting. However, their rigid modularity limits cross-task knowledge reuse and leads to performance degradation under high sparsity. We propose Selective Subnetwork Distillation (SSD), a structurally guided continual learning framework that treats distillation not as a regularizer but as a topology-aligned information conduit. SSD identifies neurons with high activation frequency and selectively distills knowledge within previous Top-K subnetworks and output logits, without requiring replay or task labels. This enables structural realignment while preserving sparse modularity. Experiments on Split CIFAR-10, CIFAR-100, and MNIST demonstrate that SSD improves accuracy, retention, and representation coverage, offering a structurally grounded solution for sparse continual learning.
title Distillation-Guided Structural Transfer for Continual Learning Beyond Sparse Distributed Memory
topic Machine Learning
url https://arxiv.org/abs/2512.15267