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Skeleton-based action recognition receives increasing attention because the skeleton representations reduce the amount of training data by eliminating visual information irrelevant to actions. To further improve the sample efficiency,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-22 Anqi Zhu , Qiuhong Ke , Mingming Gong , James Bailey

We present a module that extends the temporal graph of a graph convolutional network (GCN) for action recognition with a sequence of skeletons. Existing methods attempt to represent a more appropriate spatial graph on an intra-frame, but…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Yuya Obinata , Takuma Yamamoto

Graph convolutional network (GCN) is generalization of convolutional neural network (CNN) to work with arbitrarily structured graphs. A binary adjacency matrix is commonly used in training a GCN. Recently, the attention mechanism allows the…

Machine Learning · Statistics 2022-03-03 Chao Shang , Qinqing Liu , Ko-Shin Chen , Jiangwen Sun , Jin Lu , Jinfeng Yi , Jinbo Bi

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

Social recommender systems are expected to improve recommendation quality by incorporating social information when there is little user-item interaction data. However, recent reports from industry show that social recommender systems…

Information Retrieval · Computer Science 2020-10-26 Junliang Yu , Hongzhi Yin , Jundong Li , Min Gao , Zi Huang , Lizhen Cui

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

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

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

3D skeleton-based motion prediction and activity recognition are two interwoven tasks in human behaviour analysis. In this work, we propose a motion context modeling methodology that provides a new way to combine the advantages of both…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Dianhao Zhang , Ngo Anh Vien , Mien Van , Sean McLoone

Due to the compact and rich high-level representations offered, skeleton-based human action recognition has recently become a highly active research topic. Previous studies have demonstrated that investigating joint relationships in spatial…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Ali Farajzadeh Bavil , Hamed Damirchi , Hamid D. Taghirad

Skeleton-based human action recognition has attracted a lot of research attention during the past few years. Recent works attempted to utilize recurrent neural networks to model the temporal dependencies between the 3D positional…

Computer Vision and Pattern Recognition · Computer Science 2017-06-27 Jun Liu , Amir Shahroudy , Dong Xu , Alex C. Kot , Gang Wang

Skeleton-based action recognition has gained considerable traction thanks to its utilization of succinct and robust skeletal representations. Nonetheless, current methodologies often lean towards utilizing a solitary backbone to model…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Jinfu Liu , Baiqiao Yin , Jiaying Lin , Jiajun Wen , Yue Li , Mengyuan Liu

Graph Convolutional Networks (GCNs) are state-of-the-art graph based representation learning models by iteratively stacking multiple layers of convolution aggregation operations and non-linear activation operations. Recently, in…

Information Retrieval · Computer Science 2020-01-29 Lei Chen , Le Wu , Richang Hong , Kun Zhang , Meng Wang

Graph convolutional networks (GCNs) have emerged as a powerful tool for skeleton-based action and gesture recognition, thanks to their ability to model spatial and temporal dependencies in skeleton data. However, existing GCN-based methods…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Hu Cui , Renjing Huang , Ruoyu Zhang , Tessai Hayama

Traditional machine learning methods for movement recognition often struggle with limited model interpretability and a lack of insight into human movement dynamics. This study introduces a novel representation learning framework based on…

Machine Learning · Computer Science 2025-07-01 Xingrui Gu , Chuyi Jiang , Erte Wang , Qiang Cui , Leimin Tian , Lianlong Wu , Siyang Song , Chuang Yu

A skeleton representation of the human body has been proven to be effective for this task. The skeletons are presented in graphs form-like. However, the topology of a graph is not structured like Euclidean-based data. Therefore, a new set…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Motasem S. Alsawadi , Miguel Rio

Pedestrian trajectory prediction is an important technique of autonomous driving, which has become a research hot-spot in recent years. Previous methods mainly rely on the position relationship of pedestrians to model social interaction,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Pei Lv , Wentong Wang , Yunxin Wang , Yuzhen Zhang , Mingliang Xu , Changsheng Xu

The computer vision community is currently focusing on solving action recognition problems in real videos, which contain thousands of samples with many challenges. In this process, Deep Convolutional Neural Networks (D-CNNs) have played a…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Huy-Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

Action recognition has been heavily employed in many applications such as autonomous vehicles, surveillance, etc, where its robustness is a primary concern. In this paper, we examine the robustness of state-of-the-art action recognizers…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 He Wang , Feixiang He , Zhexi Peng , Tianjia Shao , Yong-Liang Yang , Kun Zhou , David Hogg

Human action recognition in 3D skeleton sequences has attracted a lot of research attention. Recently, Long Short-Term Memory (LSTM) networks have shown promising performance in this task due to their strengths in modeling the dependencies…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Jun Liu , Gang Wang , Ling-Yu Duan , Kamila Abdiyeva , Alex C. Kot
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