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Traditional online continual learning (OCL) research has primarily focused on mitigating catastrophic forgetting with fixed and limited storage allocation throughout an agent's lifetime. However, a broad range of real-world applications are…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Ameya Prabhu , Zhipeng Cai , Puneet Dokania , Philip Torr , Vladlen Koltun , Ozan Sener

Continual Learning (CL) aims to incrementally acquire new knowledge while mitigating catastrophic forgetting. Within this setting, Online Continual Learning (OCL) focuses on updating models promptly and incrementally from single or small…

Machine Learning · Computer Science 2025-12-19 Giovanni Donghi , Luca Pasa , Daniele Zambon , Cesare Alippi , Nicolò Navarin

Online Continual Learning (OCL) models continuously adapt to nonstationary data streams, usually without task information. These settings are complex and many traditional CL methods fail, while online methods (mainly replay-based) suffer…

Machine Learning · Computer Science 2025-02-05 Edoardo Urettini , Antonio Carta

Online continual learning (OCL) aims to enable model learning from a non-stationary data stream to continuously acquire new knowledge as well as retain the learnt one, under the constraints of having limited system size and computational…

Computer Vision and Pattern Recognition · Computer Science 2023-01-16 Sheng-Feng Yu , Wei-Chen Chiu

Online continual learning (OCL) methods adapt to changing environments without forgetting past knowledge. Similarly, online time series forecasting (OTSF) is a real-world problem where data evolve in time and success depends on both rapid…

Machine Learning · Computer Science 2026-01-21 Edoardo Urettini , Daniele Atzeni , Ioanna-Yvonni Tsaknaki , Antonio Carta

Continual Learning (CL) aims to develop agents emulating the human ability to sequentially learn new tasks while being able to retain knowledge obtained from past experiences. In this paper, we introduce the novel problem of…

Computer Vision and Pattern Recognition · Computer Science 2022-01-13 Enrico Fini , Stéphane Lathuilière , Enver Sangineto , Moin Nabi , Elisa Ricci

Graph continual learning (GCL) aims to learn from a continuous sequence of graph-based tasks. Regularization methods are vital for preventing catastrophic forgetting in GCL, particularly in the challenging replay-free, class-incremental…

Machine Learning · Computer Science 2025-09-17 Jie Yin , Ke Sun , Han Wu

Continual Learning (CL) aims to learn from a non-stationary data stream where the underlying distribution changes over time. While recent advances have produced efficient memory-free methods in the offline CL (offCL) setting, where tasks…

Machine Learning · Computer Science 2025-06-10 Nicolas Michel , Maorong Wang , Jiangpeng He , Toshihiko Yamasaki

Online Continual Learning (OCL) studies learning over a continuous data stream without observing any single example more than once, a setting that is closer to the experience of humans and systems that must learn "on-the-wild". Yet,…

Computation and Language · Computer Science 2021-02-02 Germán Kruszewski , Ionut-Teodor Sorodoc , Tomas Mikolov

In the realm of high-frequency data streams, achieving real-time learning within varying memory constraints is paramount. This paper presents Ferret, a comprehensive framework designed to enhance online accuracy of Online Continual Learning…

Machine Learning · Computer Science 2025-03-18 Yuhao Zhou , Yuxin Tian , Jindi Lv , Mingjia Shi , Yuanxi Li , Qing Ye , Shuhao Zhang , Jiancheng Lv

Online continual learning for image classification studies the problem of learning to classify images from an online stream of data and tasks, where tasks may include new classes (class incremental) or data nonstationarity (domain…

Machine Learning · Computer Science 2021-10-06 Zheda Mai , Ruiwen Li , Jihwan Jeong , David Quispe , Hyunwoo Kim , Scott Sanner

In Online Continual Learning (OCL), a neural network sequentially learns from a non-stationary data stream in a single-pass with access only to a limited memory replay buffer. This contrasts sharply with off-line continual learning where…

Machine Learning · Computer Science 2026-05-20 Ankita Awasthi , Marco Apolinario , Kaushik Roy

Continual learning aims to enable neural networks to acquire new knowledge on sequential tasks. However, the key challenge in such settings is to learn new tasks without catastrophically forgetting previously learned tasks. We propose the…

Machine Learning · Computer Science 2026-01-27 Ishir Garg , Neel Kolhe , Andy Peng , Rohan Gopalam

In Online Continual Learning (OCL) a learning system receives a stream of data and sequentially performs prediction and training steps. Important challenges in OCL are concerned with automatic adaptation to the particular non-stationary…

Machine Learning · Computer Science 2024-11-11 Michalis K. Titsias , Alexandre Galashov , Amal Rannen-Triki , Razvan Pascanu , Yee Whye Teh , Jorg Bornschein

Online Continual Learning (OCL) is a critical area in machine learning, focusing on enabling models to adapt to evolving data streams in real-time while addressing challenges such as catastrophic forgetting and the stability-plasticity…

Online continual learning aims to get closer to a live learning experience by learning directly on a stream of data with temporally shifting distribution and by storing a minimum amount of data from that stream. In this empirical…

One of the objectives of continual learning is to prevent catastrophic forgetting in learning multiple tasks sequentially, and the existing solutions have been driven by the conceptualization of the plasticity-stability dilemma. However,…

Machine Learning · Computer Science 2024-04-16 Seungyub Han , Yeongmo Kim , Taehyun Cho , Jungwoo Lee

Online continual learning requires the models to learn from constant, endless streams of data. While significant efforts have been made in this field, most were focused on mitigating the catastrophic forgetting issue to achieve better…

Machine Learning · Computer Science 2024-10-14 Xinrui Wang , Chuanxing Geng , Wenhai Wan , Shao-yuan Li , Songcan Chen

In autonomous driving, even a meticulously trained model can encounter failures when facing unfamiliar scenarios. One of these scenarios can be formulated as an online continual learning (OCL) problem. That is, data come in an online…

Machine Learning · Computer Science 2024-11-06 Huiping Zhuang , Di Fang , Kai Tong , Yuchen Liu , Ziqian Zeng , Xu Zhou , Cen Chen

Online continual learning (OCL) refers to the ability of a system to learn over time from a continuous stream of data without having to revisit previously encountered training samples. Learning continually in a single data pass is crucial…

Machine Learning · Computer Science 2020-03-23 German I. Parisi , Vincenzo Lomonaco
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