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We consider class incremental learning (CIL) problem, in which a learning agent continuously learns new classes from incrementally arriving training data batches and aims to predict well on all the classes learned so far. The main challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Hongjoon Ahn , Jihwan Kwak , Subin Lim , Hyeonsu Bang , Hyojun Kim , Taesup Moon

To tackle the issues of catastrophic forgetting and overfitting in few-shot class-incremental learning (FSCIL), previous work has primarily concentrated on preserving the memory of old knowledge during the incremental phase. The role of…

Machine Learning · Computer Science 2024-02-05 Wenhao Jiang , Duo Li , Menghan Hu , Guangtao Zhai , Xiaokang Yang , Xiao-Ping Zhang

Most existing federated learning methods assume that clients have fully labeled data to train on, while in reality, it is hard for the clients to get task-specific labels due to users' privacy concerns, high labeling costs, or lack of…

Machine Learning · Computer Science 2023-02-24 Nan Yang , Dong Yuan , Charles Z Liu , Yongkun Deng , Wei Bao

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

In class incremental learning (CIL) a model must learn new classes in a sequential manner without forgetting old ones. However, conventional CIL methods consider a balanced distribution for each new task, which ignores the prevalence of…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Xialei Liu , Yu-Song Hu , Xu-Sheng Cao , Andrew D. Bagdanov , Ke Li , Ming-Ming Cheng

Unsupervised video class incremental learning (uVCIL) represents an important learning paradigm for learning video information without forgetting, and without considering any data labels. Prior approaches have focused on supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Nattapong Kurpukdee , Adrian G. Bors

In today's connected world, the generation of massive streaming data across diverse domains has become commonplace. In the presence of concept drift, class imbalance, label scarcity, and new class emergence, they jointly degrade…

Machine Learning · Computer Science 2026-02-11 Jin Li , Kleanthis Malialis , Marios Polycarpou

Incremental Learning (IL) aims to accumulate knowledge from sequential input tasks while overcoming catastrophic forgetting. Existing IL methods typically assume that an incoming task has only increments of classes or domains, referred to…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Min-Yeong Park , Jae-Ho Lee , Gyeong-Moon Park

Federated Learning (FL) enables collaborative model training among participants while guaranteeing the privacy of raw data. Mainstream FL methodologies overlook the dynamic nature of real-world data, particularly its tendency to grow in…

Machine Learning · Computer Science 2024-04-18 Zhiyuan Wu , Tianliu He , Sheng Sun , Yuwei Wang , Min Liu , Bo Gao , Xuefeng Jiang

Class-incremental learning (CIL) under an exemplar-free constraint has presented a significant challenge. Existing methods adhering to this constraint are prone to catastrophic forgetting, far more so than replay-based techniques that…

Machine Learning · Computer Science 2024-03-27 Huiping Zhuang , Run He , Kai Tong , Ziqian Zeng , Cen Chen , Zhiping Lin

Continual learning aims to provide intelligent agents that are capable of learning continually a sequence of tasks, building on previously learned knowledge. A key challenge in this learning paradigm is catastrophically forgetting…

Machine Learning · Computer Science 2021-01-18 Ghada Sokar , Decebal Constantin Mocanu , Mykola Pechenizkiy

Federated Continual Learning (FCL) aims to enable sequentially privacy-preserving model training on streams of incoming data that vary in edge devices by preserving previous knowledge while adapting to new data. Current FCL literature…

Machine Learning · Computer Science 2025-10-15 Yichen Li , Yuying Wang , Jiahua Dong , Haozhao Wang , Yining Qi , Rui Zhang , Ruixuan Li

Multi-modal class-incremental learning (MMCIL) seeks to leverage multi-modal data, such as audio-visual and image-text pairs, thereby enabling models to learn continuously across a sequence of tasks while mitigating forgetting. While…

Machine Learning · Computer Science 2025-01-17 Xianghu Yue , Yiming Chen , Xueyi Zhang , Xiaoxue Gao , Mengling Feng , Mingrui Lao , Huiping Zhuang , Haizhou Li

Complementary-label learning (CLL) is widely used in weakly supervised classification, but it faces a significant challenge in real-world datasets when confronted with class-imbalanced training samples. In such scenarios, the number of…

Machine Learning · Computer Science 2024-03-21 Meng Wei , Yong Zhou , Zhongnian Li , Xinzheng Xu

Exemplar-Free Class Incremental Learning (efCIL) aims to continuously incorporate the knowledge from new classes while retaining previously learned information, without storing any old-class exemplars (i.e., samples). For this purpose,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Libo Huang , Zhulin An , Yan Zeng , Chuanguang Yang , Xinqiang Yu , Yongjun Xu

Supervised person re-identification (re-id) approaches require a large amount of pairwise manual labeled data, which is not applicable in most real-world scenarios for re-id deployment. On the other hand, unsupervised re-id methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Wenjing Gao , Minxian Li

Exemplar-free class incremental learning (EF-CIL) is a nontrivial task that requires continuously enriching model capability with new classes while maintaining previously learned knowledge without storing and replaying any old class…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Tianqi Wang , Jingcai Guo , Depeng Li , Zhi Chen

Continual learning (CL) is under-explored in the video domain. The few existing works contain splits with imbalanced class distributions over the tasks, or study the problem in unsuitable datasets. We introduce vCLIMB, a novel video…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Andrés Villa , Kumail Alhamoud , Juan León Alcázar , Fabian Caba Heilbron , Victor Escorcia , Bernard Ghanem

We present a new technique to enhance the robustness of imitation learning methods by generating corrective data to account for compounding errors and disturbances. While existing methods rely on interactive expert labeling, additional…

Robotics · Computer Science 2024-06-05 Liyiming Ke , Yunchu Zhang , Abhay Deshpande , Siddhartha Srinivasa , Abhishek Gupta

Class-incremental fault diagnosis requires a model to adapt to new fault classes while retaining previous knowledge. However, limited research exists for imbalanced and long-tailed data. Extracting discriminative features from few-shot…

Machine Learning · Computer Science 2025-01-22 Hanrong Zhang , Yifei Yao , Zixuan Wang , Jiayuan Su , Mengxuan Li , Peng Peng , Hongwei Wang