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Few-shot class-incremental learning (FSCIL) presents a core challenge in continual learning, requiring models to rapidly adapt to new classes with very limited samples while mitigating catastrophic forgetting. Recent prompt-based methods,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Shuai Huang , Xuhan Lin , Yuwu Lu

Instance-incremental learning (IIL) focuses on learning continually with data of the same classes. Compared to class-incremental learning (CIL), the IIL is seldom explored because IIL suffers less from catastrophic forgetting (CF). However,…

Machine Learning · Computer Science 2024-06-06 Qiang Nie , Weifu Fu , Yuhuan Lin , Jialin Li , Yifeng Zhou , Yong Liu , Lei Zhu , Chengjie Wang

2D images and 3D point clouds are foundational data types for multimedia applications, including real-time video analysis, augmented reality (AR), and 3D scene understanding. Class-incremental semantic segmentation (CSS) requires…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jiaxu Li , Rui Li , Jianyu Qi , Songning Lai , Linpu Lv , Kejia Fan , Jianheng Tang , Yutao Yue , Dongzhan Zhou , Yuanhuai Liu , Huiping Zhuang

Semantic segmentation of indoor point clouds has found various applications in the creation of digital twins for robotics, navigation and building information modeling (BIM). However, most existing datasets of labeled indoor point clouds…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Maxime Mérizette , Nicolas Audebert , Pierre Kervella , Jérôme Verdun

Concept Bottleneck Models (CBMs) enhance the interpretability of AI systems, particularly by bridging visual input with human-understandable concepts, effectively acting as a form of multimodal interpretability model. However, existing CBMs…

Machine Learning · Computer Science 2025-08-06 Songning Lai , Mingqian Liao , Zhangyi Hu , Jiayu Yang , Wenshuo Chen , Hongru Xiao , Jianheng Tang , Haicheng Liao , Yutao Yue

Unsupervised 3D representation learning reduces the burden of labeling multimodal 3D data for fusion perception tasks. Among different pre-training paradigms, differentiable-rendering-based methods have shown most promise. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Runjian Chen , Hang Zhang , Avinash Ravichandran , Hyoungseob Park , Wenqi Shao , Alex Wong , Ping Luo

Current methods for 3D semantic segmentation propose training models with limited annotations to address the difficulty of annotating large, irregular, and unordered 3D point cloud data. They usually focus on the 3D domain only, without…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Lechun You , Zhonghua Wu , Weide Liu , Xulei Yang , Jun Cheng , Wei Zhou , Bharadwaj Veeravalli , Guosheng Lin

Point cloud segmentation is a fundamental visual understanding task in 3D vision. A fully supervised point cloud segmentation network often requires a large amount of data with point-wise annotations, which is expensive to obtain. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Xiaoyu Chen , Chi Zhang , Guosheng Lin , Jing Han

Exemplar-free class-incremental learning (CIL) poses several challenges since it prohibits the rehearsal of data from previous tasks and thus suffers from catastrophic forgetting. Recent approaches to incrementally learning the classifier…

Computer Vision and Pattern Recognition · Computer Science 2024-01-15 Dipam Goswami , Yuyang Liu , Bartłomiej Twardowski , Joost van de Weijer

The field of Continual Learning (CL) has inspired numerous researchers over the years, leading to increasingly advanced countermeasures to the issue of catastrophic forgetting. Most studies have focused on the single-class scenario, where…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Martin Menabue , Emanuele Frascaroli , Matteo Boschini , Lorenzo Bonicelli , Angelo Porrello , Simone Calderara

Due to the limitations of inadequate Whole-Slide Image (WSI) samples with weak labels, pseudo-bag-based multiple instance learning (MIL) appears as a vibrant prospect in WSI classification. However, the pseudo-bag dividing scheme, often…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Rui Yang , Pei Liu , Luping Ji

Fine-tuning vision-language models (VLMs) like CLIP to downstream tasks is often necessary to optimize their performance. However, a major obstacle is the limited availability of labeled data. We study the use of pseudolabels, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Cristina Menghini , Andrew Delworth , Stephen H. Bach

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

We present a novel active learning framework for 3D point cloud semantic segmentation that, for the first time, integrates large language models (LLMs) to construct hierarchical label structures and guide uncertainty-based sample selection.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Chenxi Li , Nuo Chen , Fengyun Tan , Yantong Chen , Bochun Yuan , Tianrui Li , Chongshou Li

Class-incremental learning (CIL) enables models to continuously learn new categories from sequential tasks without forgetting previously acquired knowledge. While recent advances in vision-language models such as CLIP have demonstrated…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Haoran Chen , Houze Xu , Micah Goldblum , Daoguo Dong , Zuxuan Wu

Traditional machine learning systems are typically designed for static data distributions, which suffer from catastrophic forgetting when learning from evolving data streams. Class-Incremental Learning (CIL) addresses this challenge by…

Machine Learning · Computer Science 2026-01-29 Hao Sun , Da-Wei Zhou

Class-Incremental Learning (CIL) aims to sequentially learn new classes while mitigating catastrophic forgetting of previously learned knowledge. Conventional CIL approaches implicitly assume that classes are morphologically static,…

Machine Learning · Computer Science 2026-02-03 Zheng Zhang , Tao Hu , Xueheng Li , Yang Wang , Rui Li , Jie Zhang , Chengjun Xie

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

The rise of large-scale models has catalyzed in-context learning as a powerful approach for multitasking, particularly in natural language and image processing. However, its application to 3D point cloud tasks has been largely unexplored.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Mengyuan Liu , Zhongbin Fang , Xia Li , Joachim M. Buhmann , Deheng Ye , Xiangtai Li , Chen Change Loy

Point-cloud semantic segmentation underpins a wide range of critical applications. Although recent deep architectures and large-scale datasets have driven impressive closed-set performance, these models struggle to recognize or properly…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Wang Fang , Shirin Rahimi , Olivia Bennett , Sophie Carter , Mitra Hassani , Xu Lan , Omid Javadi , Lucas Mitchell