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The ability of artificial agents to increment their capabilities when confronted with new data is an open challenge in artificial intelligence. The main challenge faced in such cases is catastrophic forgetting, i.e., the tendency of neural…

Machine Learning · Computer Science 2020-12-16 Eden Belouadah , Adrian Popescu , Ioannis Kanellos

We introduce a novel continual learning problem: how to sequentially update the weights of a personalized 2D and 3D generative face model as new batches of photos in different appearances, styles, poses, and lighting are captured regularly.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Annie N. Wang , Luchao Qi , Roni Sengupta

Facial expressions are widely used in the behavioral interpretation of emotions, cognitive science, and social interactions. In this paper, we present a novel method for fully automatic facial expression recognition in facial image…

Computer Vision and Pattern Recognition · Computer Science 2016-04-13 Deepak Ghimire , Joonwhoan Lee

The pre-trained foundation models (PFMs) have become essential for facilitating large-scale multimodal learning. Researchers have effectively employed the ``pre-train, prompt, and predict'' paradigm through prompt learning to induce…

Computation and Language · Computer Science 2025-12-24 Xiang Chen , Yixin Ou , Quan Feng , Lei Li , Piji Li , Haibo Ye , Sheng-Jun Huang , Shuofei Qiao , Shumin Deng , Huajun Chen , Ningyu Zhang

The incorporation of advanced sensors and machine learning techniques has enabled modern manufacturing enterprises to perform data-driven classification-based anomaly detection based on the sensor data collected in manufacturing processes.…

Machine Learning · Computer Science 2024-11-19 Yuxuan Li , Tianxin Xie , Chenang Liu , Zhangyue Shi

Natural interaction with virtual objects in AR/VR environments makes for a smooth user experience. Gestures are a natural extension from real world to augmented space to achieve these interactions. Finding discriminating spatio-temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-08-17 Tejo Chalasani , Jan Ondrej , Aljosa Smolic

Graph class-incremental learning (GCIL) allows graph neural networks (GNNs) to adapt to evolving graph analytical tasks by incrementally learning new class knowledge while retaining knowledge of old classes. Existing GCIL methods primarily…

Machine Learning · Computer Science 2025-07-24 Jiazhen Chen , Zheng Ma , Sichao Fu , Mingbin Feng , Tony S. Wirjanto , Weihua Ou

In the context of continual learning, acquiring new knowledge while maintaining previous knowledge presents a significant challenge. Existing methods often use experience replay techniques that store a small portion of previous task data…

Machine Learning · Computer Science 2025-12-24 Minsu Kim , Seong-Hyeon Hwang , Steven Euijong Whang

In this paper, we focus on unsupervised representation learning for skeleton-based action recognition. Existing approaches usually learn action representations by sequential prediction but they suffer from the inability to fully learn…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Shihao Xu , Haocong Rao , Xiping Hu , Bin Hu

Deep learning systems are prone to catastrophic forgetting when learning from a sequence of tasks, as old data from previous tasks is unavailable when learning a new task. To address this, some methods propose replaying data from previous…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Chenyang Wang , Junjun Jiang , Xingyu Hu , Xianming Liu , Xiangyang Ji

Few-shot Class-Incremental Learning (FSCIL) aims to continuously learn new classes based on very limited training data without forgetting the old ones encountered. Existing studies solely relied on pure visual networks, while in this paper…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Zitong Huang , Ze Chen , Zhixing Chen , Erjin Zhou , Xinxing Xu , Rick Siow Mong Goh , Yong Liu , Wangmeng Zuo , Chunmei Feng

Continual learning techniques employ simple replay sample selection processes and use them during subsequent tasks. Typically, they rely on labeled data. In this paper, we depart from this by automatically selecting prototypes stored…

Machine Learning · Computer Science 2025-04-11 Agil Aghasanli , Yi Li , Plamen Angelov

Online and Early detection of gestures is crucial for building touchless gesture based interfaces. These interfaces should operate on a stream of video frames instead of the complete video and detect the presence of gestures at an earlier…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Vikram Gupta , Sai Kumar Dwivedi , Rishabh Dabral , Arjun Jain

This paper proposes two novel knowledge transfer techniques for class-incremental learning (CIL). First, we propose data-free generative replay (DF-GR) to mitigate catastrophic forgetting in CIL by using synthetic samples from a generative…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Yoojin Choi , Mostafa El-Khamy , Jungwon Lee

Incrementally training deep neural networks to recognize new classes is a challenging problem. Most existing class-incremental learning methods store data or use generative replay, both of which have drawbacks, while 'rehearsal-free'…

Machine Learning · Computer Science 2023-11-10 Gido M. van de Ven , Zhe Li , Andreas S. Tolias

In this paper, we introduce a new benchmark dataset named IPN Hand with sufficient size, variety, and real-world elements able to train and evaluate deep neural networks. This dataset contains more than 4,000 gesture samples and 800,000 RGB…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Gibran Benitez-Garcia , Jesus Olivares-Mercado , Gabriel Sanchez-Perez , Keiji Yanai

Zero-shot learning is a new paradigm to classify objects from classes that are not available at training time. Zero-shot learning (ZSL) methods have attracted considerable attention in recent years because of their ability to classify…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Chandan Gautam , Sethupathy Parameswaran , Ashish Mishra , Suresh Sundaram

Continual learning endeavors to equip the model with the capability to integrate current task knowledge while mitigating the forgetting of past task knowledge. Inspired by prompt tuning, prompt-based methods maintain a frozen backbone and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Yukun Zuo , Hantao Yao , Lu Yu , Liansheng Zhuang , Changsheng Xu

This paper presents ProFi-Net, a novel few-shot learning framework for WiFi-based gesture recognition that overcomes the challenges of limited training data and sparse feature representations. ProFi-Net employs a prototype-based metric…

Machine Learning · Computer Science 2025-04-30 Zhe Cui , Shuxian Zhang , Kangzhi Lou , Le-Nam Tran

Pseudo-rehearsal allows neural networks to learn a sequence of tasks without forgetting how to perform in earlier tasks. Preventing forgetting is achieved by introducing a generative network which can produce data from previously seen tasks…

Machine Learning · Computer Science 2019-11-28 Craig Atkinson , Brendan McCane , Lech Szymanski , Anthony Robins