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Graph Convolutional Networks (GCNs) have shown very powerful for graph data representation and learning tasks. Existing GCNs usually conduct feature aggregation on a fixed neighborhood graph in which each node computes its representation by…

Computer Vision and Pattern Recognition · Computer Science 2019-11-21 Bo Jiang , Beibei Wang , Jin Tang , Bin Luo

Spectral graph convolutional networks (GCNs) are particular deep models which aim at extending neural networks to arbitrary irregular domains. The principle of these networks consists in projecting graph signals using the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Hichem Sahbi

Graph Convolutional Networks (GCNs) and their variants have achieved significant performances on various recommendation tasks. However, many existing GCN models tend to perform recursive aggregations among all related nodes, which can arise…

Information Retrieval · Computer Science 2022-10-17 Yue Xu , Hao Chen , Zengde Deng , Yuanchen Bei , Feiran Huang

Graph-based reasoning over skeleton data has emerged as a promising approach for human action recognition. However, the application of prior graph-based methods, which predominantly employ whole temporal sequences as their input, to the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Lukas Hedegaard , Negar Heidari , Alexandros Iosifidis

Skeleton-based action recognition aims to project skeleton sequences to action categories, where skeleton sequences are derived from multiple forms of pre-detected points. Compared with earlier methods that focus on exploring single-form…

Computer Vision and Pattern Recognition · Computer Science 2022-07-01 Xuanhan Wang , Yan Dai , Lianli Gao , Jingkuan Song

Graph Convolutional Networks (GCNs) have received increasing attention in the machine learning community for effectively leveraging both the content features of nodes and the linkage patterns across graphs in various applications. As…

Machine Learning · Computer Science 2021-01-01 Donghan Yu , Ruohong Zhang , Zhengbao Jiang , Yuexin Wu , Yiming Yang

Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. In GCNs, graph topology dominates feature aggregation and therefore is the key to extracting representative…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Yuxin Chen , Ziqi Zhang , Chunfeng Yuan , Bing Li , Ying Deng , Weiming Hu

Action recognition with 3D skeleton sequences is becoming popular due to its speed and robustness. The recently proposed Convolutional Neural Networks (CNN) based methods have shown good performance in learning spatio-temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-04-12 Zhengyuan Yang , Yuncheng Li , Jianchao Yang , Jiebo Luo

Machine learning techniques for road networks hold the potential to facilitate many important transportation applications. Graph Convolutional Networks (GCNs) are neural networks that are capable of leveraging the structure of a road…

Machine Learning · Computer Science 2020-07-23 Tobias Skovgaard Jepsen , Christian S. Jensen , Thomas Dyhre Nielsen

Current methods for skeleton-based human action recognition usually work with complete skeletons. However, in real scenarios, it is inevitable to capture incomplete or noisy skeletons, which could significantly deteriorate the performance…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Yi-Fan Song , Zhang Zhang , Caifeng Shan , Liang Wang

Skeleton-based action recognition methods are limited by the semantic extraction of spatio-temporal skeletal maps. However, current methods have difficulty in effectively combining features from both temporal and spatial graph dimensions…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Shengqin Wang , Yongji Zhang , Minghao Zhao , Hong Qi , Kai Wang , Fenglin Wei , Yu Jiang

Skeleton-based action recognition has made significant advancements recently, with models like InfoGCN showcasing remarkable accuracy. However, these models exhibit a key limitation: they necessitate complete action observation prior to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Seunggeun Chi , Hyung-gun Chi , Qixing Huang , Karthik Ramani

Recently, the significant achievements have been made in skeleton-based human action recognition with the emergence of graph convolutional networks (GCNs). However, the state-of-the-art (SOTA) models used for this task focus on constructing…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Junyi Wang , Ziao Li , Bangli Liu , Haibin Cai , Mohamad Saada , Qinggang Meng

Modern recommender systems (RS) work by processing a number of signals that can be inferred from large sets of user-item interaction data. The main signal to analyze stems from the raw matrix that represents interactions. However, we can…

Information Retrieval · Computer Science 2021-03-08 Paula Gómez Duran , Alexandros Karatzoglou , Jordi Vitrià , Xin Xin , Ioannis Arapakis

Reorganizing implicit feedback of users as a user-item interaction graph facilitates the applications of graph convolutional networks (GCNs) in recommendation tasks. In the interaction graph, edges between user and item nodes function as…

Information Retrieval · Computer Science 2021-11-04 Wei Yinwei , Wang Xiang , Nie Liqiang , He Xiangnan , Chua Tat-Seng

Graph convolutional networks (GCNs) have emerged as dominant methods for skeleton-based action recognition. However, they still suffer from two problems, namely, neighborhood constraints and entangled spatiotemporal feature representations.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Ruwen Bai , Min Li , Bo Meng , Fengfa Li , Miao Jiang , Junxing Ren , Degang Sun

For pursuing accurate skeleton-based action recognition, most prior methods use the strategy of combining Graph Convolution Networks (GCNs) with attention-based methods in a serial way. However, they regard the human skeleton as a complete…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Chen Pang , Xuequan Lu , Lei Lyu

This paper investigates body bones from skeleton data for skeleton based action recognition. Body joints, as the direct result of mature pose estimation technologies, are always the key concerns of traditional action recognition methods.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-01 Xikun Zhang , Chang Xu , Xinmei Tian , Dacheng Tao

How humans understand and recognize the actions of others is a complex neuroscientific problem that involves a combination of cognitive mechanisms and neural networks. Research has shown that humans have brain areas that recognize actions…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Haojun Xu , Yan Gao , Zheng Hui , Jie Li , Xinbo Gao

With the advances in capturing 2D or 3D skeleton data, skeleton-based action recognition has received an increasing interest over the last years. As skeleton data is commonly represented by graphs, graph convolutional networks have been…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Shijie Li , Jinhui Yi , Yazan Abu Farha , Juergen Gall