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Current training regimes for deep learning usually involve exposure to a single task / dataset at a time. Here we start from the observation that in this context the trained model is not given any knowledge of anything outside its…

Artificial Intelligence · Computer Science 2020-02-11 Giacomo Spigler

Catastrophic forgetting is a problem of neural networks that loses the information of the first task after training the second task. Here, we propose a method, i.e. incremental moment matching (IMM), to resolve this problem. IMM…

Machine Learning · Computer Science 2018-01-31 Sang-Woo Lee , Jin-Hwa Kim , Jaehyun Jun , Jung-Woo Ha , Byoung-Tak Zhang

Large language models (LLMs) have shown remarkable performance on a variety of NLP tasks, and are being rapidly adopted in a wide range of use cases. It is therefore of vital importance to holistically evaluate the factuality of their…

Computation and Language · Computer Science 2024-04-26 Jiaqing Yuan , Lin Pan , Chung-Wei Hang , Jiang Guo , Jiarong Jiang , Bonan Min , Patrick Ng , Zhiguo Wang

Forgetting is often seen as an unwanted characteristic in both human and machine learning. However, we propose that forgetting can in fact be favorable to learning. We introduce "forget-and-relearn" as a powerful paradigm for shaping the…

Machine Learning · Computer Science 2022-02-02 Hattie Zhou , Ankit Vani , Hugo Larochelle , Aaron Courville

Large language models (LLMs) are trained for downstream tasks by updating their parameters (e.g., via RL). However, updating parameters forces them to absorb task-specific information, which can result in catastrophic forgetting and loss of…

Catastrophic forgetting remains a critical challenge in continual learning for large language models (LLMs), where models struggle to retain performance on historical tasks when fine-tuning on new sequential data without access to past…

Machine Learning · Computer Science 2025-09-30 Zhixin Zhang , Zeming Wei , Meng Sun

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

Recently, foundation language models (LMs) have marked significant achievements in the domains of natural language processing (NLP) and computer vision (CV). Unlike traditional neural network models, foundation LMs obtain a great ability…

Computation and Language · Computer Science 2024-12-02 Yutao Yang , Jie Zhou , Xuanwen Ding , Tianyu Huai , Shunyu Liu , Qin Chen , Yuan Xie , Liang He

In Federated Learning (FL), forgetting, or the loss of knowledge across rounds, hampers algorithm convergence, particularly in the presence of severe data heterogeneity among clients. This study explores the nuances of this issue,…

Machine Learning · Computer Science 2024-02-09 Mohammed Aljahdali , Ahmed M. Abdelmoniem , Marco Canini , Samuel Horváth

Catastrophic forgetting in continual learning is often measured at the performance or last-layer representation level, overlooking the underlying mechanisms. We introduce a mechanistic framework that offers a geometric interpretation of…

Machine Learning · Computer Science 2026-04-21 Sergi Masip , Gido M. van de Ven , Javier Ferrando , Tinne Tuytelaars

Catastrophic forgetting (CF) occurs when a neural network loses the information previously learned while training on a set of samples from a different distribution, i.e., a new task. Existing approaches have achieved remarkable results in…

Machine Learning · Computer Science 2022-09-13 Jary Pomponi , Simone Scardapane , Aurelio Uncini

Continual learning (CL) is a setting in which an agent has to learn from an incoming stream of data sequentially. CL performance evaluates the model's ability to continually learn and solve new problems with incremental available…

Machine Learning · Computer Science 2022-05-04 Josh Andle , Salimeh Yasaei Sekeh

Large Language Models (LLMs) are being applied in a wide array of settings, well beyond the typical language-oriented use cases. In particular, LLMs are increasingly used as a plug-and-play method for fitting data and generating…

Machine Learning · Computer Science 2025-10-29 Hejia Liu , Mochen Yang , Gediminas Adomavicius

Large language models (LLMs) acquire substantial world knowledge during pre-training, which is further shaped by post-training techniques such as supervised fine-tuning (SFT). However, the impact of SFT on a model's knowledge remains…

Computation and Language · Computer Science 2026-02-11 Junjie Ye , Yuming Yang , Yang Nan , Shuo Li , Qi Zhang , Tao Gui , Xuanjing Huang , Peng Wang , Zhongchao Shi , Jianping Fan

Machine Unlearning (MU) enables Large Language Models (LLMs) to remove unsafe or outdated information. However, existing work assumes that all facts are equally forgettable and largely ignores whether the forgotten knowledge originates from…

Computation and Language · Computer Science 2026-05-15 Borisiuk Anna , Andrey Savchenko , Alexander Panchenko , Elena Tutubalina

The integration of Vision-Language Models (VLMs) into autonomous driving promises to solve long-tail scenarios, but this paradigm faces the critical and unaddressed challenge of catastrophic forgetting. The very fine-tuning process used to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Runhao Mao , Hanshi Wang , Yixiang Yang , Qianli Ma , Jingmeng Zhou , Zhipeng Zhang

Cross-domain few-shot learning (CDFSL) aims to acquire knowledge from limited training data in the target domain by leveraging prior knowledge transferred from source domains with abundant training samples. CDFSL faces challenges in…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Yixiong Zou , Yicong Liu , Yiman Hu , Yuhua Li , Ruixuan Li

A common challenge towards the adaptability of Large Language Models (LLMs) is their ability to learn new languages over time without hampering the model's performance on languages in which the model is already proficient (usually English).…

Computation and Language · Computer Science 2026-04-24 Divyanshu Aggarwal , Sankarshan Damle , Navin Goyal , Satya Lokam , Sunayana Sitaram

A growing number of state-of-the-art transfer learning methods employ language models pretrained on large generic corpora. In this paper we present a conceptually simple and effective transfer learning approach that addresses the problem of…

Computation and Language · Computer Science 2019-06-03 Alexandra Chronopoulou , Christos Baziotis , Alexandros Potamianos

In Federated Learning (FL), the data in each client is typically assumed fixed or static. However, data often comes in an incremental manner in real-world applications, where the data domain may increase dynamically. In this work, we study…

Machine Learning · Computer Science 2024-06-04 Yichen Li , Qunwei Li , Haozhao Wang , Ruixuan Li , Wenliang Zhong , Guannan Zhang