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In this paper, we explore the spatial redundancy in video recognition with the aim to improve the computational efficiency. It is observed that the most informative region in each frame of a video is usually a small image patch, which…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Yulin Wang , Zhaoxi Chen , Haojun Jiang , Shiji Song , Yizeng Han , Gao Huang

We propose AdapTok, an adaptive temporal causal video tokenizer that can flexibly allocate tokens for different frames based on video content. AdapTok is equipped with a block-wise masking strategy that randomly drops tail tokens of each…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Yan Li , Changyao Tian , Renqiu Xia , Ning Liao , Weiwei Guo , Junchi Yan , Hongsheng Li , Jifeng Dai , Hao Li , Xue Yang

Federated learning (FL) is a novel machine learning setting that enables on-device intelligence via decentralized training and federated optimization. Deep neural networks' rapid development facilitates the learning techniques for modeling…

Machine Learning · Computer Science 2021-09-27 Shaoxiong Ji , Wenqi Jiang , Anwar Walid , Xue Li

Masked Autoencoders (MAEs) learn generalizable representations for image, text, audio, video, etc., by reconstructing masked input data from tokens of the visible data. Current MAE approaches for videos rely on random patch, tube, or…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Wele Gedara Chaminda Bandara , Naman Patel , Ali Gholami , Mehdi Nikkhah , Motilal Agrawal , Vishal M. Patel

The recent research of facial expression recognition has made a lot of progress due to the development of deep learning technologies, but some typical challenging problems such as the variety of rich facial expressions and poses are still…

Computer Vision and Pattern Recognition · Computer Science 2019-07-26 Wenxuan Wang , Qiang Sun , Tao Chen , Chenjie Cao , Ziqi Zheng , Guoqiang Xu , Han Qiu , Yanwei Fu

Highly distributed training of Deep Neural Networks (DNNs) on future compute platforms (offering 100 of TeraOps/s of computational capacity) is expected to be severely communication constrained. To overcome this limitation, new gradient…

Machine Learning · Computer Science 2017-12-08 Chia-Yu Chen , Jungwook Choi , Daniel Brand , Ankur Agrawal , Wei Zhang , Kailash Gopalakrishnan

Recently, deep learning based facial expression recognition (FER) methods have attracted considerable attention and they usually require large-scale labelled training data. Nonetheless, the publicly available facial expression databases…

Computer Vision and Pattern Recognition · Computer Science 2020-02-07 Yan Yan , Ying Huang , Si Chen , Chunhua Shen , Hanzi Wang

Automated systems that detect the social behavior of deception can enhance human well-being across medical, social work, and legal domains. Labeled datasets to train supervised deception detection models can rarely be collected for…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Leena Mathur , Maja J Matarić

Deepfake technology has rapidly advanced and poses significant threats to information integrity and trust in online multimedia. While significant progress has been made in detecting deepfakes, the simultaneous manipulation of audio and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Christos Koutlis , Symeon Papadopoulos

Only parts of unlabeled data are selected to train models for most semi-supervised learning methods, whose confidence scores are usually higher than the pre-defined threshold (i.e., the confidence margin). We argue that the recognition…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Hangyu Li , Nannan Wang , Xi Yang , Xiaoyu Wang , Xinbo Gao

This paper proposes a feature-based domain adaptation technique for identifying emotions in generic images, encompassing both facial and non-facial objects, as well as non-human components. This approach addresses the challenge of the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Puneet Kumar , Balasubramanian Raman

Affective Computing has recently attracted the attention of the research community, due to its numerous applications in diverse areas. In this context, the emergence of video-based data allows to enrich the widely used spatial features with…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Decky Aspandi , Federico Sukno , Björn Schuller , Xavier Binefa

Speech emotion recognition (SER) is the task of recognising human's emotional states from speech. SER is extremely prevalent in helping dialogue systems to truly understand our emotions and become a trustworthy human conversational partner.…

Sound · Computer Science 2022-10-27 Zhao Ren , Thanh Tam Nguyen , Yi Chang , Björn W. Schuller

Speech deepfake detection (SDD) systems perform well on standard benchmarks datasets but often fail to generalize to expressive and emotional spoofing attacks. Many methods rely on spoof-heavy training data, learning dataset-specific…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-16 Aurosweta Mahapatra , Ismail Rasim Ulgen , Kong Aik Lee , Nicholas Andrews , Berrak Sisman

Multimodal speech emotion recognition (SER) has emerged as pivotal for improving human-machine interaction. Researchers are increasingly leveraging both speech and textual information obtained through automatic speech recognition (ASR) to…

Human-Computer Interaction · Computer Science 2025-09-24 Jiajun He , Xiaohan Shi , Cheng-Hung Hu , Jinyi Mi , Xingfeng Li , Tomoki Toda

Diffusion Language Models (DLMs) enable parallel decoding via iterative denoising, where remasking strategies play a critical role in balancing inference speed and output quality. Existing methods predominantly rely on static confidence…

Computation and Language · Computer Science 2026-02-24 Xinhao Sun , Huaijin Zhao , Maoliang Li , Zihao Zheng , Jiayu Chen , Yun Liang , Xiang Chen

Facial Expression Recognition (FER) plays a crucial role in human affective analysis and has been widely applied in computer vision tasks such as human-computer interaction and psychological assessment. The 8th Affective Behavior Analysis…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 JunGyu Lee , Kunyoung Lee , Haesol Park , Ig-Jae Kim , Gi Pyo Nam

Automatic speech recognition in reverberant conditions is a challenging task as the long-term envelopes of the reverberant speech are temporally smeared. In this paper, we propose a neural model for enhancement of sub-band temporal…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-11 Anurenjan Purushothaman , Anirudh Sreeram , Rohit Kumar , Sriram Ganapathy

Deep learning based facial expression recognition (FER) has received a lot of attention in the past few years. Most of the existing deep learning based FER methods do not consider domain knowledge well, which thereby fail to extract…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Yuedong Chen , Jianfeng Wang , Shikai Chen , Zhongchao Shi , Jianfei Cai

With the increasing practicality of deep learning applications, practitioners are inevitably faced with datasets corrupted by noise from various sources such as measurement errors, mislabeling, and estimated surrogate inputs/outputs that…

Machine Learning · Computer Science 2023-08-30 Wendyam Eric Lionel Ilboudo , Taisuke Kobayashi , Takamitsu Matsubara