arXiv Machine Learning

Continual Learning Mechanisms Compose for Long-Horizon Memorization

arXiv AI
Oct 16

Functional Subnetwork Localization for Efficient Continual Learning in Large Language Models

The paper identifies functionally specialized subnetworks in large language models using gradient‑attribution profiling, revealing that these subnetworks have minimal overlap. It introduces CiMEO, a continual learning framework that routes each training example to its corresponding subnetwork, limiting updates to selected parameters and optimizer states. On 1.4 million sequential instructions across five generative benchmarks, CiMEO outperforms other methods while reducing catastrophic forgetting and preserving pre‑trained representations.

By Shuoran Jiang, Wentao Zhu, Yang Xiang, Dongfeng Li, Yunan Zhang, Mengchen Zhao, Yuhui Guo, Kai Chen, Youcheng Pan, Xiangping Wu, Qingcai Chen
arXiv AI
Oct 12

Self-Preservation in Language Models

The paper investigates how language models can aid their own continual learning by generating replay data and selecting preservation targets. By organizing task descriptions into Task Banks, the authors show that replay generated by frozen models reduces forgetting on tasks outside the bank and that informed selection of replay targets can improve retention. The study demonstrates that models can support broader self‑preservation, especially when larger models are used, and that replacing new‑task examples with replay can enhance preservation under a fixed example budget.

By Dongkyu Cho, Rumi Chunara, Ali Behrouz
arXiv AI
Sep 24

Parameter Importance-Driven Continual Learning for Foundation Models

The paper introduces PIECE, a Parameter Importance-Driven Continual Learning method that selectively updates only 0.1% of core parameters to preserve general abilities while learning new domain knowledge. PIECE employs two importance estimators—PIECE‑F using Fisher Information and PIECE‑S combining gradient and curvature information—to guide updates. Experiments on three language models and two multimodal models demonstrate that PIECE maintains general capabilities and achieves state‑of‑the‑art continual learning performance without accessing prior training data or adding parameter overhead.

By Lingxiang Wang, Hainan Zhang, Zhiming Zheng
arXiv Machine Learning
Oct 8

Continual Learning without Continual Training

arXiv:2610.10379v1 Announce Type: new Abstract: Continual learning requires models to adapt to new domains and new classes while retaining prior knowledge. Many existing methods rely on continued opt...

By Nikita Narayanan, Ritham Majumdarr, Sonali Parbhoo
arXiv Machine Learning
Oct 23

Fine-Grained Analysis of Catastrophic Forgetting in Continual Learning via Algorithmic Stability

The paper introduces an algorithmic stability framework to analyze catastrophic forgetting in continual learning using SGD, without assuming a specific model architecture. It decomposes forgetting into intra‑task and cross‑task generalization gaps plus empirical forgetting, and derives bounds for different learning‑rate schedules. Experiments on Split CIFAR‑100 and Split MiniImageNet illustrate the theoretical insights.

By Guodong Zheng, Yan Sun, Peng Wang, Enneng Yang, Jiafei Lyu, Xiaochun Cao, Dacheng Tao, Li Shen
arXiv Machine Learning
Oct 9

From a Prompt to Repertoires: Evolving Functional REpertoires Enable LLM Continual Learning

The paper introduces Evolving Functional REpertoires (EFRE), a method that replaces a single prompt with a dynamic set of functions to enable large language models to learn new tasks sequentially without forgetting. EFRE refines existing functions when updates are compatible and creates new ones when updates conflict, thereby mitigating catastrophic forgetting and overfitting. Experiments on a three‑task continual‑learning stream show EFRE outperforms GRPO by 7.50 percentage points and reduces performance drop on a subsequent task by only 1.56 percentage points compared to base prompt optimization.

By Fengyuan Liu, Yue Wang, Hangxi Guo, Fengyuan Liu, Chenxu Wu, Yanguang Liu, Mengnan Du