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Recently, some contrastive learning methods have been proposed to simultaneously learn representations and clustering assignments, achieving significant improvements. However, these methods do not take the category information and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Huasong Zhong , Jianlong Wu , Chong Chen , Jianqiang Huang , Minghua Deng , Liqiang Nie , Zhouchen Lin , Xian-Sheng Hua

Continual learning refers to the ability to acquire and transfer knowledge without catastrophically forgetting what was previously learned. In this work, we consider \emph{few-shot} continual learning in classification tasks, and we propose…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Mengmi Zhang , Tao Wang , Joo Hwee Lim , Gabriel Kreiman , Jiashi Feng

Continual Learning (CL) aims at incrementally learning new tasks without forgetting the knowledge acquired from old ones. Experience Replay (ER) is a simple and effective rehearsal-based strategy, which optimizes the model with current…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Tao Zhuo , Zhiyong Cheng , Zan Gao , Hehe Fan , Mohan Kankanhalli

Approximate machine unlearning (AMU) enables models to `forget' specific training data through specialized fine-tuning on a retained (and forget) subset of training set. However, processing this large retained subset still dominates…

Machine Learning · Computer Science 2025-08-06 Junaid Iqbal Khan

In the online continual learning paradigm, agents must learn from a changing distribution while respecting memory and compute constraints. Experience Replay (ER), where a small subset of past data is stored and replayed alongside new data,…

Machine Learning · Computer Science 2022-04-26 Lucas Caccia , Rahaf Aljundi , Nader Asadi , Tinne Tuytelaars , Joelle Pineau , Eugene Belilovsky

Foundation Models (FMs) have become the hallmark of modern AI, however, these models are trained on massive data, leading to financially expensive training. Updating FMs as new data becomes available is important, however, can lead to…

Machine Learning · Computer Science 2024-04-22 James Seale Smith , Lazar Valkov , Shaunak Halbe , Vyshnavi Gutta , Rogerio Feris , Zsolt Kira , Leonid Karlinsky

Offline-to-Online Reinforcement Learning (O2O RL) faces a critical dilemma in balancing the use of a fixed offline dataset with newly collected online experiences. Standard methods, often relying on a fixed data-mixing ratio, struggle to…

Machine Learning · Computer Science 2026-04-09 Chihyeon Song , Jaewoo Lee , Jinkyoo Park

We study the common continual learning setup where an overparameterized model is sequentially fitted to a set of jointly realizable tasks. We analyze forgetting, defined as the loss on previously seen tasks, after $k$ iterations. For…

Machine Learning · Computer Science 2026-01-05 Itay Evron , Ran Levinstein , Matan Schliserman , Uri Sherman , Tomer Koren , Daniel Soudry , Nathan Srebro

Variational regularization has remained one of the most successful approaches for reconstruction in imaging inverse problems for several decades. With the emergence and astonishing success of deep learning in recent years, a considerable…

Machine Learning · Computer Science 2021-10-26 Subhadip Mukherjee , Carola-Bibiane Schönlieb , Martin Burger

Adversarial continual learning is effective for continual learning problems because of the presence of feature alignment process generating task-invariant features having low susceptibility to the catastrophic forgetting problem.…

Machine Learning · Computer Science 2022-09-07 Tanmoy Dam , Mahardhika Pratama , MD Meftahul Ferdaus , Sreenatha Anavatti , Hussein Abbas

Continual learning has emerged as a pivotal area of research, primarily due to its advantageous characteristic that allows models to persistently acquire and retain information. However, catastrophic forgetting can severely impair model…

Machine Learning · Computer Science 2026-01-28 KaiHui Huang , RunQing Wu , JinHui Sheng , HanYi Zhang , Ling Ge , JinYu Guo , Fei Ye

Distance-based anomaly detection methods rely on compact in-distribution (ID) embeddings that are well separated from anomalies. However, conventional contrastive learning strategies often struggle to achieve this balance, either promoting…

Machine Learning · Computer Science 2026-02-02 Willian T. Lunardi , Abdulrahman Banabila , Dania Herzalla , Martin Andreoni

Video object detection is a challenging task because videos often suffer from image deterioration such as motion blur, occlusion, and deformable shapes, making it significantly more difficult than detecting objects in still images. Prior…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Lucas Rakotoarivony

Human beings are able to master a variety of knowledge and skills with ongoing learning. By contrast, dramatic performance degradation is observed when new tasks are added to an existing neural network model. This phenomenon, termed as…

Machine Learning · Computer Science 2019-10-25 Xin Yao , Tianchi Huang , Chenglei Wu , Rui-Xiao Zhang , Lifeng Sun

Anomaly detection in time-series data is crucial for identifying faults, failures, threats, and outliers across a range of applications. Recently, deep learning techniques have been applied to this topic, but they often struggle in…

Machine Learning · Computer Science 2024-01-23 Lixu Wang , Shichao Xu , Xinyu Du , Qi Zhu

To cope with real-world dynamics, an intelligent system needs to incrementally acquire, update, and exploit knowledge throughout its lifetime. This ability, known as Continual learning, provides a foundation for AI systems to develop…

Machine Learning · Computer Science 2025-12-19 Hesham G. Moussa , Aroosa Hameed , Arashmid Akhavain

Continual learning (CL) refers to a machine learning paradigm that learns continuously without forgetting previously acquired knowledge. Thereby, major difficulty in CL is catastrophic forgetting of preceding tasks, caused by shifts in data…

Machine Learning · Computer Science 2023-03-08 Stella Ho , Ming Liu , Lan Du , Longxiang Gao , Yong Xiang

Unsupervised anomaly detection (UAD) learns one-class classifiers exclusively with normal (i.e., healthy) images to detect any abnormal (i.e., unhealthy) samples that do not conform to the expected normal patterns. UAD has two main…

Computer Vision and Pattern Recognition · Computer Science 2021-07-01 Yu Tian , Guansong Pang , Fengbei Liu , Yuanhong chen , Seon Ho Shin , Johan W. Verjans , Rajvinder Singh , Gustavo Carneiro

In out-of-distribution (OOD) detection, one is asked to classify whether a test sample comes from a known inlier distribution or not. We focus on the case where the inlier distribution is defined by a training dataset and there exists no…

Machine Learning · Computer Science 2025-01-22 Edward T. Reehorst , Philip Schniter

In this paper, we consider the problem of fine-grained image retrieval in an incremental setting, when new categories are added over time. On the one hand, repeatedly training the representation on the extended dataset is time-consuming. On…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Wei Chen , Yu Liu , Weiping Wang , Tinne Tuytelaars , Erwin M. Bakker , Michael Lew