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The objective of this work is to evaluate multi-agent artificial intelligence methods when deployed on teams of unmanned surface vehicles (USV) in an adversarial environment. Autonomous agents were evaluated in real-world scenarios using…

Detecting action units (AUs) on human faces is challenging because various AUs make subtle facial appearance change over various regions at different scales. Current works have attempted to recognize AUs by emphasizing important regions.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Chen Ma , Li Chen , Junhai Yong

Facial action units (AUs) play an indispensable role in human emotion analysis. We observe that although AU-based high-level emotion analysis is urgently needed by real-world applications, frame-level AU results provided by previous works…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Yingjie Chen , Jiarui Zhang , Tao Wang , Yun Liang

In this project, we created a database with two types of annotations used in the emotion recognition domain : Action Units and Valence Arousal to try to achieve better results than with only one model. The originality of the approach is…

Machine Learning · Computer Science 2019-12-17 Valentin Richer , Dimitrios Kollias

Deep learning models have achieved state-of-the- art performance in recognizing human activities, but often rely on utilizing background cues present in typical computer vision datasets that predominantly have a stationary camera. If these…

Robotics · Computer Science 2017-09-20 Fahimeh Rezazadegan , Sareh Shirazi , Ben Upcroft , Michael Milford

Adversarial machine learning attacks on video action recognition models is a growing research area and many effective attacks were introduced in recent years. These attacks show that action recognition models can be breached in many ways.…

Cryptography and Security · Computer Science 2024-04-18 Furkan Mumcu , Yasin Yilmaz

Autism spectrum disorder (ASD) represents a neurodevelopmental condition characterized by difficulties in expressing emotions and communication, particularly during early childhood. Understanding the affective state of children at an early…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Aura Loredana Dan

Modern AI benchmarks operate at a complexity that outpaces traditional verification methods. Tasks authored by domain experts often contain implicit assumptions, incomplete environment specifications, and brittle evaluation logic that human…

Computation and Language · Computer Science 2026-05-27 Junlin Wang , Federico Bianchi , Shang Zhu , Fan Nie , Yongchan Kwon , Bhuwan Dhingra , James Zou

Facial Action Units (AUs) detection is a cornerstone of objective facial expression analysis and a critical focus in affective computing. Despite its importance, AU detection faces significant challenges, such as the high cost of AU…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Bohao Xing , Kaishen Yuan , Zitong Yu , Xin Liu , Heikki Kälviäinen

Bias in machine learning models can lead to unfair decision making, and while it has been well-studied in the image and text domains, it remains underexplored in action recognition. Action recognition models often suffer from background…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Joseph Fioresi , Ishan Rajendrakumar Dave , Mubarak Shah

In this paper, we introduce an end-to-end machine learning-based system for classifying autism spectrum disorder (ASD) using facial attributes such as expressions, action units, arousal, and valence. Our system classifies ASD using…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Beibin Li , Sachin Mehta , Deepali Aneja , Claire Foster , Pamela Ventola , Frederick Shic , Linda Shapiro

Expressions and facial action units (AUs) are two levels of facial behavior descriptors. Expression auxiliary information has been widely used to improve the AU detection performance. However, most existing expression representations can…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Rudong An , Wei Zhang , Hao Zeng , Wei Chen , Zhigang Deng , Yu Ding

Despite unprecedented growth in biodiversity data, a persistent gap remains between what is known and what is acted upon. Existing frameworks such as the FAIR and CLEAR Principles have improved data accessibility and interpretability but do…

Databases · Computer Science 2026-05-05 Lars Vogt

Agentic Artificial Intelligence (AI) represents a paradigm shift from reactive systems to proactive, autonomous decision making frameworks. Existing AI-based educational systems remain fragmented and lack multi-level integration across…

Multiagent Systems · Computer Science 2026-04-21 Arya Mary K J , Deepthy K Bhaskar , Sinu T S , Binu V P

Recently how to introduce large amounts of unlabeled facial images in the wild into supervised Facial Action Unit (AU) detection frameworks has become a challenging problem. In this paper, we propose a new AU detection framework where…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Ziqiao Shang , Li Yu

Recognition in planning seeks to find agent intentions, goals or activities given a set of observations and a knowledge library (e.g. goal states, plans or domain theories). In this work we introduce the problem of Online Action…

Artificial Intelligence · Computer Science 2021-08-04 Alejandro Suárez-Hernández , Javier Segovia-Aguas , Carme Torras , Guillem Alenyà

In this work we tackle the task of video-based audio-visual emotion recognition, within the premises of the 2nd Workshop and Competition on Affective Behavior Analysis in-the-wild (ABAW2). Poor illumination conditions, head/body orientation…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Panagiotis Antoniadis , Ioannis Pikoulis , Panagiotis P. Filntisis , Petros Maragos

Human action recognition in computer vision has been widely studied in recent years. However, most algorithms consider only certain action specially with even high computational cost. That is not suitable for practical applications with…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Zezhou Chen , Yajie Cui , Kaikai Zhao , Zhaoxiang Liu , Shiguo Lian

Fine-grained classification is a challenging problem, due to subtle differences among highly-confused categories. Most approaches address this difficulty by learning discriminative representation of individual input image. On the other…

Computer Vision and Pattern Recognition · Computer Science 2020-02-25 Peiqin Zhuang , Yali Wang , Yu Qiao

When observing the actions of others, humans make inferences about why they acted as they did, and what this implies about the world; humans also use the fact that their actions will be interpreted in this manner, allowing them to act…