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Deep learning models generally display catastrophic forgetting when learning new data continuously. Many incremental learning approaches address this problem by reusing data from previous tasks while learning new tasks. However, the direct…

Machine Learning · Computer Science 2024-11-12 Young Jo Choi , Min Kyoon Yoo , Yu Rang Park

Group Relative Policy Optimization (GRPO) effectively scales LLM reasoning but incurs prohibitive computational costs due to its extensive group-based sampling requirement. While recent selective data utilization methods can mitigate this…

Machine Learning · Computer Science 2026-03-05 Haodong Zhu , Yangyang Ren , Yanjing Li , Mingbao Lin , Linlin Yang , Xuhui Liu , Xiantong Zhen , Haiguang Liu , Baochang Zhang

Humans have the ability to accumulate knowledge of new tasks in varying conditions, but deep neural networks often suffer from catastrophic forgetting of previously learned knowledge after learning a new task. Many recent methods focus on…

Catastrophic forgetting is a problem caused by neural networks' inability to learn data in sequence. After learning two tasks in sequence, performance on the first one drops significantly. This is a serious disadvantage that prevents many…

Machine Learning · Computer Science 2020-04-30 Wojciech Masarczyk , Ivona Tautkute

A key challenge in applying reinforcement learning (RL) to diffusion large language models (dLLMs) lies in the intractability of their likelihood functions, which are essential for the RL objective, necessitating corresponding approximation…

Machine Learning · Computer Science 2025-10-15 Nianyi Lin , Jiajie Zhang , Lei Hou , Juanzi Li

Despite huge success, deep networks are unable to learn effectively in sequential multitask learning settings as they forget the past learned tasks after learning new tasks. Inspired from complementary learning systems theory, we address…

Machine Learning · Computer Science 2019-06-04 Mohammad Rostami , Soheil Kolouri , Praveen K. Pilly

Deep neural networks are used in many state-of-the-art systems for machine perception. Once a network is trained to do a specific task, e.g., bird classification, it cannot easily be trained to do new tasks, e.g., incrementally learning to…

Artificial Intelligence · Computer Science 2017-11-10 Ronald Kemker , Marc McClure , Angelina Abitino , Tyler Hayes , Christopher Kanan

Fine-tuning Multimodal Large Language Models (MLLMs) on task-specific data is an effective way to improve performance on downstream applications. However, such adaptation often leads to a degradation in generalization on pretrained tasks, a…

Computation and Language · Computer Science 2026-05-22 Hyeontaek Hwang , Nguyen Dinh Son , Daeyoung Kim

Continually adapting edge models in cloud-edge collaborative object detection for traffic monitoring suffers from catastrophic forgetting, where models lose previously learned knowledge when adapting to new data distributions. This is…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Xinrun Xu , Jianwen Yang , Qiuhong Zhang , Zhanbiao Lian , Zhiming Ding , Shan Jiang

Machine unlearning has become a crucial role in enabling generative models trained on large datasets to remove sensitive, private, or copyright-protected data. However, existing machine unlearning methods face three challenges in learning…

Machine Learning · Computer Science 2026-01-09 Qiang Chen , Chun-Wun Cheng , Xiu Su , Hongyan Xu , Xi Lin , Shan You , Angelica I. Aviles-Rivero , Yi Chen

Catastrophic forgetting occurs when a neural network loses the information learned in a previous task after training on subsequent tasks. This problem remains a hurdle for artificial intelligence systems with sequential learning…

Machine Learning · Computer Science 2018-05-30 Joan Serrà , Dídac Surís , Marius Miron , Alexandros Karatzoglou

Lifelong learning with deep neural networks is well-known to suffer from catastrophic forgetting: the performance on previous tasks drastically degrades when learning a new task. To alleviate this effect, we propose to leverage a large…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Kibok Lee , Kimin Lee , Jinwoo Shin , Honglak Lee

Reinforcement learning has become a powerful paradigm for post-training large language model agents, yet credit assignment in multi-turn environments remains a challenge. Agents often receive sparse, trajectory-level rewards only at the end…

Computation and Language · Computer Science 2026-05-14 Siyuan Zhu , Chao Yu , Rongxin Yang , Zongkai Liu , Jinjun Hu , Qiwen Chen , Yibo Zhang

Aligning large language models (LLMs) with human preferences is a critical challenge in AI research. While methods like Reinforcement Learning from Human Feedback (RLHF) and Direct Preference Optimization (DPO) are widely used, they often…

Computation and Language · Computer Science 2026-05-19 Xuan Qi , Rongwu Xu , Zhijing Jin

Recent MLLMs have shown emerging visual understanding and reasoning abilities after being pre-trained on large-scale multimodal datasets. Unlike pre-training, where MLLMs receive rich visual-text alignment, instruction-tuning is often…

Machine Learning · Computer Science 2026-01-27 Junda Wu , Yuxin Xiong , Xintong Li , Yu Xia , Ruoyu Wang , Yu Wang , Tong Yu , Sungchul Kim , Ryan A. Rossi , Lina Yao , Jingbo Shang , Julian McAuley

To cope with uncertain changes of the external world, intelligent systems must continually learn from complex, evolving environments and respond in real time. This ability, collectively known as general continual learning (GCL),…

Artificial Intelligence · Computer Science 2026-05-12 Guanglong Sun , Hongwei Yan , Liyuan Wang , Zhiqi Kang , Shuang Cui , Hang Su , Jun Zhu , Yi Zhong

A large obstacle to deploying deep learning models in practice is the process of updating models post-deployment (ideally, frequently). Deep neural networks can cost many thousands of dollars to train. When new data comes in the pipeline,…

Machine Learning · Computer Science 2023-06-21 Rich Harang , Hillary Sanders

Large language models often lose previously aligned safety behaviors when fine-tuned on benign data, a phenomenon known as catastrophic forgetting. Prior work shows that adding random safety examples can mitigate this effect, but it remains…

Computation and Language · Computer Science 2025-10-28 Anh Pham , Mihir Thalanki , Michael Sun , Aditya Chaloo , Ankita Gupta , Tian Xia , Aditya Mate , Ehimwenma Nosakhare , Soundararajan Srinivasan

A central problem in learning from sequential data is representing cumulative history in an incremental fashion as more data is processed. We introduce a general framework (HiPPO) for the online compression of continuous signals and…

Machine Learning · Computer Science 2020-10-26 Albert Gu , Tri Dao , Stefano Ermon , Atri Rudra , Christopher Re

Aligning large language models (LLMs) with human preferences in federated learning (FL) is challenging due to decentralized, privacy-sensitive, and highly non-IID preference data. Direct Preference Optimization (DPO) offers an efficient…

Machine Learning · Computer Science 2026-03-23 Kewen Zhu , Liping Yi , Zhiming Zhao , Zhuang Qi , Han Yu , Qinghua Hu