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Catastrophic forgetting (CF) happens whenever a neural network overwrites past knowledge while being trained on new tasks. Common techniques to handle CF include regularization of the weights (using, e.g., their importance on past tasks),…

Machine Learning · Computer Science 2022-12-29 Jary Pomponi , Simone Scardapane , Aurelio Uncini

In continual learning, the learner faces a stream of data whose distribution changes over time. Modern neural networks are known to suffer under this setting, as they quickly forget previously acquired knowledge. To address such…

Machine Learning · Computer Science 2021-03-03 Arslan Chaudhry , Albert Gordo , Puneet K. Dokania , Philip Torr , David Lopez-Paz

The notion of neural collapse refers to several emergent phenomena that have been empirically observed across various canonical classification problems. During the terminal phase of training a deep neural network, the feature embedding of…

Machine Learning · Computer Science 2023-04-05 Duc Anh Nguyen , Ron Levie , Julian Lienen , Gitta Kutyniok , Eyke Hüllermeier

Continual Learning (CL) is the research field addressing learning without forgetting when the data distribution is not static. This paper studies spurious features' influence on continual learning algorithms. We show that continual learning…

Machine Learning · Computer Science 2022-05-27 Timothée Lesort

With the capacity of continual learning, humans can continuously acquire knowledge throughout their lifespan. However, computational systems are not, in general, capable of learning tasks sequentially. This long-standing challenge for deep…

Machine Learning · Computer Science 2022-08-05 Qihan Yang , Fan Feng , Rosa Chan

Learning user representations is a vital technique toward effective user modeling and personalized recommender systems. Existing approaches often derive an individual set of model parameters for each task by training on separate data.…

Information Retrieval · Computer Science 2021-05-11 Fajie Yuan , Guoxiao Zhang , Alexandros Karatzoglou , Joemon Jose , Beibei Kong , Yudong Li

Despite significant advances, continual learning models still suffer from catastrophic forgetting when exposed to incrementally available data from non-stationary distributions. Rehearsal approaches alleviate the problem by maintaining and…

Machine Learning · Statistics 2021-03-02 Binh Tang , David S. Matteson

Catastrophic forgetting is a problem faced by many machine learning models and algorithms. When trained on one task, then trained on a second task, many machine learning models "forget" how to perform the first task. This is widely believed…

Machine Learning · Statistics 2015-03-05 Ian J. Goodfellow , Mehdi Mirza , Da Xiao , Aaron Courville , Yoshua Bengio

Catastrophic forgetting is a critical challenge in training deep neural networks. Although continual learning has been investigated as a countermeasure to the problem, it often suffers from the requirements of additional network components…

Machine Learning · Computer Science 2019-10-23 Dongmin Park , Seokil Hong , Bohyung Han , Kyoung Mu Lee

Humans are capable of learning new tasks without forgetting previous ones, while neural networks fail due to catastrophic forgetting between new and previously-learned tasks. We consider a class-incremental setting which means that the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Xialei Liu , Chenshen Wu , Mikel Menta , Luis Herranz , Bogdan Raducanu , Andrew D. Bagdanov , Shangling Jui , Joost van de Weijer

In many real-world scenarios, data to train machine learning models becomes available over time. Unfortunately, these models struggle to continually learn new concepts without forgetting what has been learnt in the past. This phenomenon is…

Computation and Language · Computer Science 2023-01-16 Beyza Ermis , Giovanni Zappella , Martin Wistuba , Aditya Rawal , Cedric Archambeau

Continual learning empowers models to learn from a continuous stream of data while preserving previously acquired knowledge, effectively addressing the challenge of catastrophic forgetting. In this study, we propose a new approach that…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Mohamed Abbas Hedjazi , Oussama Hadjerci , Adel Hafiane

Deep neural networks have shown promise in several domains, and the learned data (task) specific information is implicitly stored in the network parameters. Extraction and utilization of encoded knowledge representations are vital when data…

In the present era of deep learning, continual learning research is mainly focused on mitigating forgetting when training a neural network with stochastic gradient descent on a non-stationary stream of data. On the other hand, in the more…

Machine Learning · Computer Science 2024-05-30 Soochan Lee , Hyeonseong Jeon , Jaehyeon Son , Gunhee Kim

Continual learning is the ability to acquire new knowledge without forgetting the previously learned one, assuming no further access to past training data. Neural network approximators trained with gradient descent are known to fail in this…

Machine Learning · Computer Science 2021-11-05 Rodrigue Siry

Catastrophic forgetting in continual learning is a common destructive phenomenon in gradient-based neural networks that learn sequential tasks, and it is much different from forgetting in humans, who can learn and accumulate knowledge…

Machine Learning · Computer Science 2020-11-17 Guannan Hu , Wu Zhang , Hu Ding , Wenhao Zhu

In this work, we investigate how a model's tendency to broadly integrate its parametric knowledge evolves throughout pretraining, and how this behavior affects overall performance, particularly in terms of knowledge acquisition and…

Computation and Language · Computer Science 2025-03-13 Jiyeon Kim , Hyunji Lee , Hyowon Cho , Joel Jang , Hyeonbin Hwang , Seungpil Won , Youbin Ahn , Dohaeng Lee , Minjoon Seo

Continual learning seeks to enable machine learning systems to solve an increasing corpus of tasks sequentially. A critical challenge for continual learning is forgetting, where the performance on previously learned tasks decreases as new…

Machine Learning · Computer Science 2025-06-06 Yasaman Mahdaviyeh , James Lucas , Mengye Ren , Andreas S. Tolias , Richard Zemel , Toniann Pitassi

In this paper, we propose a novel training procedure for the continual representation learning problem in which a neural network model is sequentially learned to alleviate catastrophic forgetting in visual search tasks. Our method, called…

Computer Vision and Pattern Recognition · Computer Science 2022-06-13 Tommaso Barletti , Niccolo' Biondi , Federico Pernici , Matteo Bruni , Alberto Del Bimbo

Catastrophic forgetting (CF) poses a significant challenge in machine learning, where a model forgets previously learned information upon learning new tasks. Despite the advanced capabilities of Large Language Models (LLMs), they continue…

Machine Learning · Computer Science 2025-04-17 Gangwei Jiang , Caigao Jiang , Zhaoyi Li , Siqiao Xue , Jun Zhou , Linqi Song , Defu Lian , Ying Wei