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Action Prediction is aimed to determine what action is occurring in a video as early as possible, which is crucial to many online applications, such as predicting a traffic accident before it happens and detecting malicious actions in the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Dong Wang , Yuan Yuan , Qi Wang

I present IGAN (Inferent Generative Adversarial Networks), a neural architecture that learns both a generative and an inference model on a complex high dimensional data distribution, i.e. a bidirectional mapping between data samples and a…

Machine Learning · Computer Science 2024-09-04 Luc Vignaud

Generative adversarial networks (GANs) are a powerful approach to unsupervised learning. They have achieved state-of-the-art performance in the image domain. However, GANs are limited in two ways. They often learn distributions with low…

Machine Learning · Statistics 2019-10-11 Adji B. Dieng , Francisco J. R. Ruiz , David M. Blei , Michalis K. Titsias

Person-person mutual action recognition (also referred to as interaction recognition) is an important research branch of human activity analysis. Current solutions in the field -- mainly dominated by CNNs, GCNs and LSTMs -- often consist of…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Mauricio Perez , Jun Liu , Alex C. Kot

We consider the problem of modelling high-dimensional distributions and generating new examples of data with complex relational feature structure coherent with a graph skeleton. The model we propose tackles the problem of generating the…

Machine Learning · Computer Science 2022-12-02 Yoann Boget , Magda Gregorova , Alexandros Kalousis

Generative adversarial networks (GANs) has gained tremendous popularity lately due to an ability to reinforce quality of its predictive model with generated objects and the quality of the generative model with and supervised feedback. GANs…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Evgeny Zamyatin , Andrey Filchenkov

Human actions are based on the mental perception of the environment. Even when all the aspects of an environment are not visible, humans have an internal mental model that can generalize the partially visible scenes to fully constructed and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Usama Younus , Vinoj Jayasundara , Shivam Mishra , Suleyman Aslan

Sensor-based human activity recognition is a key technology for many human-centered intelligent applications. However, this research is still in its infancy and faces many unresolved challenges. To address these, we propose a comprehensive…

Signal Processing · Electrical Eng. & Systems 2025-04-08 Hanyu Liu , Ying Yu , Hang Xiao , Siyao Li , Xuze Li , Jiarui Li , Haotian Tang

We propose an approach to address two issues that commonly occur during training of unsupervised GANs. First, since GANs use only a continuous latent distribution to embed multiple classes or clusters of data, they often do not correctly…

Machine Learning · Computer Science 2018-03-13 Youngjin Kim , Minjung Kim , Gunhee Kim

This paper presents a novel deep learning framework for human trajectory prediction and detecting social group membership in crowds. We introduce a generative adversarial pipeline which preserves the spatio-temporal structure of the…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Tharindu Fernando , Simon Denman , Sridha Sridharan , Clinton Fookes

Skeleton data is of low dimension. However, there is a trend of using very deep and complicated feedforward neural networks to model the skeleton sequence without considering the complexity in recent year. In this paper, a simple yet…

Computer Vision and Pattern Recognition · Computer Science 2021-11-09 Pengfei Zhang , Cuiling Lan , Wenjun Zeng , Junliang Xing , Jianru Xue , Nanning Zheng

Recognizing interactive actions, including hand-to-hand interaction and human-to-human interaction, has attracted increasing attention for various applications in the field of video analysis and human-robot interaction. Considering the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Mengyuan Liu , Chen Chen , Songtao Wu , Fanyang Meng , Hong Liu

We propose a unified game-theoretical framework to perform classification and conditional image generation given limited supervision. It is formulated as a three-player minimax game consisting of a generator, a classifier and a…

Machine Learning · Computer Science 2020-09-15 Chongxuan Li , Kun Xu , Jiashuo Liu , Jun Zhu , Bo Zhang

Deep generative models, such as generative adversarial networks (GANs), have been employed for $de~novo$ molecular generation in drug discovery. Most prior studies have utilized reinforcement learning (RL) algorithms, particularly Monte…

Biomolecules · Quantitative Biology 2025-09-09 Huidong Tang , Chen Li , Sayaka Kamei , Yoshihiro Yamanishi , Yasuhiko Morimoto

Action recognition and detection in the context of long untrimmed video sequences has seen an increased attention from the research community. However, annotation of complex activities is usually time consuming and challenging in practice.…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Sirnam Swetha , Hilde Kuehne , Yogesh S Rawat , Mubarak Shah

Training deep networks with limited labeled data while achieving a strong generalization ability is key in the quest to reduce human annotation efforts. This is the goal of semi-supervised learning, which exploits more widely available…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Daiqing Li , Junlin Yang , Karsten Kreis , Antonio Torralba , Sanja Fidler

Generative modeling has recently shown great promise in computer vision, but it has mostly focused on synthesizing visually realistic images. In this paper, motivated by multi-task learning of shareable feature representations, we consider…

Computer Vision and Pattern Recognition · Computer Science 2021-06-28 Zhipeng Bao , Martial Hebert , Yu-Xiong Wang

Sensor-based human activity segmentation and recognition are two important and challenging problems in many real-world applications and they have drawn increasing attention from the deep learning community in recent years. Most of the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Furong Duan , Tao Zhu , Jinqiang Wang , Liming Chen , Huansheng Ning , Yaping Wan

Semi-supervised learning methods using Generative Adversarial Networks (GANs) have shown promising empirical success recently. Most of these methods use a shared discriminator/classifier which discriminates real examples from fake while…

Machine Learning · Computer Science 2018-06-13 Abhishek Kumar , Prasanna Sattigeri , P. Thomas Fletcher

Data generation is a data augmentation technique for enhancing the generalization ability for skeleton-based human action recognition. Most existing data generation methods face challenges to ensure the temporal consistency of the dynamic…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Long Liu , Xin Wang , Fangming Li , Jiayu Chen