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Human action video recognition has recently attracted more attention in applications such as video security and sports posture correction. Popular solutions, including graph convolutional networks (GCNs) that model the human skeleton as a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Zhendong Liu , Haifeng Xia , Tong Guo , Libo Sun , Ming Shao , Siyu Xia

Recently, Zero-Shot Node Classification (ZNC) has been an emerging and crucial task in graph data analysis. This task aims to predict nodes from unseen classes which are unobserved in the training process. Existing work mainly utilizes…

Machine Learning · Computer Science 2023-12-12 Likang Wu , Junji Jiang , Hongke Zhao , Hao Wang , Defu Lian , Mengdi Zhang , Enhong Chen

Skeleton-based human action recognition has achieved remarkable progress in recent years. However, most existing GCN-based methods rely on short-range motion topologies, which not only struggle to capture long-range joint dependencies and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Ruosi Wang , Fangwei Zuo , Lei Li , Zhaoqiang Xia

Zero-Shot Classification (ZSC) equips the learned model with the ability to recognize the visual instances from the novel classes via constructing the interactions between the visual and the semantic modalities. In contrast to the…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Zhong Ji , Xuejie Yu , Yunlong Yu , Yanwei Pang , Zhongfei Zhang

Skeleton-based human action recognition has attracted great interest thanks to the easy accessibility of the human skeleton data. Recently, there is a trend of using very deep feedforward neural networks to model the 3D coordinates of…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Pengfei Zhang , Cuiling Lan , Wenjun Zeng , Junliang Xing , Jianru Xue , Nanning Zheng

Human action recognition and motion generation are two active research problems in human-centric computer vision, both aiming to align motion with textual semantics. However, most existing works study these two problems separately, without…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Jidong Kuang , Hongsong Wang , Jie Gui

We present a generative framework for zero-shot action recognition where some of the possible action classes do not occur in the training data. Our approach is based on modeling each action class using a probability distribution whose…

Computer Vision and Pattern Recognition · Computer Science 2018-01-30 Ashish Mishra , Vinay Kumar Verma , M Shiva Krishna Reddy , Arulkumar S , Piyush Rai , Anurag Mittal

Zero-Shot Learning (ZSL) is a classification task where we do not have even a single training labeled example from a set of unseen classes. Instead, we only have prior information (or description) about seen and unseen classes, often in the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Shabnam Daghaghi , Tharun Medini , Anshumali Shrivastava

We present MaskFusion, a real-time, object-aware, semantic and dynamic RGB-D SLAM system that goes beyond traditional systems which output a purely geometric map of a static scene. MaskFusion recognizes, segments and assigns semantic class…

Computer Vision and Pattern Recognition · Computer Science 2018-10-23 Martin Rünz , Maud Buffier , Lourdes Agapito

Zero-Shot Learning (ZSL) is an emerging research that aims to solve the classification problems with very few training data. The present works on ZSL mainly focus on the mapping of learning semantic space to visual space. It encounters many…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Zeng Ting , Xiang Hongxin , Xie Cheng , Yang Yun , Liu Qing

This paper introduces a novel framework for zero-shot learning (ZSL), i.e., to recognize new categories that are unseen during training, by using a multi-model and multi-alignment integration method. Specifically, we propose three…

Computer Vision and Pattern Recognition · Computer Science 2024-05-06 Siqi Yin , Lifan Jiang

Self-supervised learning (SSL), which aims to learn meaningful prior representations from unlabeled data, has been proven effective for skeleton-based action understanding. Different from the image domain, skeleton data possesses sparser…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Jiahang Zhang , Lilang Lin , Shuai Yang , Jiaying Liu

We introduce SynSE, a novel syntactically guided generative approach for Zero-Shot Learning (ZSL). Our end-to-end approach learns progressively refined generative embedding spaces constrained within and across the involved modalities…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Pranay Gupta , Divyanshu Sharma , Ravi Kiran Sarvadevabhatla

Effective and efficient task planning is essential for mobile robots, especially in applications like warehouse retrieval and environmental monitoring. These tasks often involve selecting one location from each of several target clusters,…

Artificial Intelligence · Computer Science 2026-03-23 Jiaqi Cheng , Mingfeng Fan , Xuefeng Zhang , Jingsong Liang , Yuhong Cao , Guohua Wu , Guillaume Adrien Sartoretti

Few-shot segmentation (FSS) is a dense prediction task that aims to infer the pixel-wise labels of unseen classes using only a limited number of annotated images. The key challenge in FSS is to classify the labels of query pixels using…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Wenbo Xu , Huaxi Huang , Ming Cheng , Litao Yu , Qiang Wu , Jian Zhang

Action recognition from multi-modal and multi-view observations holds significant potential for applications in surveillance, robotics, and smart environments. However, existing methods often fall short of addressing real-world challenges…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Trung Thanh Nguyen , Yasutomo Kawanishi , Vijay John , Takahiro Komamizu , Ichiro Ide

Generalized Zero-Shot Learning (GZSL) aims to recognize both seen and unseen classes by training only the seen classes, in which the instances of unseen classes tend to be biased towards the seen class. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Yi Gao , Chenwei Tang , Jiancheng Lv

Compositional Zero-Shot Learning (CZSL) aims to recognize novel concepts formed by known states and objects during training. Existing methods either learn the combined state-object representation, challenging the generalization of unseen…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Xiaocheng Lu , Ziming Liu , Song Guo , Jingcai Guo

In this paper, we examine the use of data from multiple sensing modes, i.e., accelerometry and global navigation satellite system (GNSS), for classifying animal behavior. We extract three new features from the GNSS data, namely, distance…

Machine Learning · Computer Science 2022-10-27 Reza Arablouei , Ziwei Wang , Greg J. Bishop-Hurley , Jiajun Liu

Graph convolutional networks (GCNs) are widely adopted in skeleton-based action recognition due to their powerful ability to model data topology. We argue that the performance of recent proposed skeleton-based action recognition methods is…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Liyu Wu , Can Zhang , Yuexian Zou