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Computer vision applications predict on digital images acquired by a camera from physical scenes through light. However, conventional robustness benchmarks rely on perturbations in digitized images, diverging from distribution shifts…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Eunsu Baek , Keondo Park , Jiyoon Kim , Hyung-Sin Kim

Automatic facial emotion recognition is a challenging task that has gained significant scientific interest over the past few years, but the problem of emotion recognition for a group of people has been less extensively studied. However, it…

Computer Vision and Pattern Recognition · Computer Science 2019-05-06 Samanyou Garg

In this paper, we describe our algorithmic approach, which was used for submissions in the fifth Emotion Recognition in the Wild (EmotiW 2017) group-level emotion recognition sub-challenge. We extracted feature vectors of detected faces…

Computer Vision and Pattern Recognition · Computer Science 2017-11-07 Alexandr G. Rassadin , Alexey S. Gruzdev , Andrey V. Savchenko

Face detection is to search all the possible regions for faces in images and locate the faces if there are any. Many applications including face recognition, facial expression recognition, face tracking and head-pose estimation assume that…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Yuantao Feng , Shiqi Yu , Hanyang Peng , Yan-Ran Li , Jianguo Zhang

Deep learning has bolstered gaze estimation techniques, but real-world deployment has been impeded by inadequate training datasets. This problem is exacerbated by both hardware-induced variations in eye images and inherent biological…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Sean Anthony Byrne , Virmarie Maquiling , Marcus Nyström , Enkelejda Kasneci , Diederick C. Niehorster

Face detection is an important first step before face verification and recognition. In unconstrained settings it is still an open challenge because of the variation in pose, lighting, scale, background and location. However, for the…

Computer Vision and Pattern Recognition · Computer Science 2019-03-22 Mohammad Nayeem Teli , Bruce A. Draper , J. Ross Beveridge

Emotion recognition aims to interpret the emotional states of a person based on various inputs including audio, visual, and textual cues. This paper focuses on emotion recognition using visual features. To leverage the correlation between…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Akshita Mittel , Shashank Tripathi

Event detection (ED) is aimed to identify the key trigger words in unstructured text and predict the event types accordingly. Traditional ED models are too data-hungry to accommodate real applications with scarce labeled data. Besides,…

Computation and Language · Computer Science 2023-05-17 Siyuan Wang , Jianming Zheng , Xuejun Hu , Fei Cai , Chengyu Song , Xueshan Luo

This paper examines the use of computer vision algorithms to estimate aspects of the psychosocial work environment using CCTV footage. We present a proof of concept for a methodology that detects and tracks people in video footage and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Claus D. Hansen , Thuy Hai Le , David Campos

Emotion Recognition (ER) is the process of identifying human emotions from given data. Currently, the field heavily relies on facial expression recognition (FER) because facial expressions contain rich emotional cues. However, it is…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Yuanyuan Liu , Lin Wei , Kejun Liu , Yibing Zhan , Zijing Chen , Zhe Chen , Shiguang Shan

Accurately analyzing spontaneous, unconscious micro-expressions is crucial for revealing true human emotions, but this task remains challenging in wild scenarios, such as natural conversation. Existing research largely relies on datasets…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Yigui Feng , Qinglin Wang , Yang Liu , Ke Liu , Haotian Mo , Enhao Huang , Gencheng Liu , Mingzhe Liu , Jie Liu

With emerging online topics as a source for numerous new events, detecting unseen / rare event types presents an elusive challenge for existing event detection methods, where only limited data access is provided for training. To address the…

Computation and Language · Computer Science 2023-05-30 Zhenrui Yue , Huimin Zeng , Mengfei Lan , Heng Ji , Dong Wang

Slow emerging topic detection is a task between event detection, where we aggregate behaviors of different words on short period of time, and language evolution, where we monitor their long term evolution. In this work, we tackle the…

Computation and Language · Computer Science 2021-11-08 Clément Christophe , Julien Velcin , Jairo Cugliari , Manel Boumghar , Philippe Suignard

Shoplifting poses a significant challenge for retailers, resulting in billions of dollars in annual losses. Traditional security measures often fall short, highlighting the need for intelligent solutions capable of detecting shoplifting…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Narges Rashvand , Ghazal Alinezhad Noghre , Armin Danesh Pazho , Shanle Yao , Hamed Tabkhi

Modern face recognition models embed identities on a unit hypersphere, where identity variation forms tight clusters. Conversely, shared semantic attributes can often be effectively approximated as linear directions in the latent space.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Ignacio Serna

With the transition of facial expression recognition (FER) from laboratory-controlled to challenging in-the-wild conditions and the recent success of deep learning techniques in various fields, deep neural networks have increasingly been…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Shan Li , Weihong Deng

This report characterized the suitability of existing datasets for devising new Machine Learning models, decision making methods, and analysis algorithms to improve Collaborative Problem Solving and then enumerated requirements for future…

Machine Learning · Computer Science 2024-12-25 Gnaneswar Villuri , Alex Doboli

Condescending language use is caustic; it can bring dialogues to an end and bifurcate communities. Thus, systems for condescension detection could have a large positive impact. A challenge here is that condescension is often impossible to…

Computation and Language · Computer Science 2019-09-26 Zijian Wang , Christopher Potts

Change point detection is a crucial aspect of analyzing time series data, as the presence of a change point indicates an abrupt and significant change in the process generating the data. While many algorithms for the problem of change point…

Machine Learning · Computer Science 2023-05-23 Mario Krause

Imitation learning field requires expert data to train agents in a task. Most often, this learning approach suffers from the absence of available data, which results in techniques being tested on its dataset. Creating datasets is a…

Machine Learning · Computer Science 2024-03-04 Nathan Gavenski , Michael Luck , Odinaldo Rodrigues