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Micro-expression Action Unit (AU) detection identifies localized AUs from subtle facial muscle activations, providing a foundation for decoding affective cues. Previous methods face three key limitations: (1) heavy reliance on low-density…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Zhishu Liu , Kaishen Yuan , Bo Zhao , Hui Ma , Zitong Yu

Segmenting stroke lesions from T1-weighted MR images is of great value for large-scale stroke rehabilitation neuroimaging analyses. Nevertheless, there are great challenges with this task, such as large range of stroke lesion scales and the…

Image and Video Processing · Electrical Eng. & Systems 2021-02-17 Hao Yang , Weijian Huang , Kehan Qi , Cheng Li , Xinfeng Liu , Meiyun Wang , Hairong Zheng , Shanshan Wang

Blended emotion recognition is challenging because emotions are often expressed as mixtures of subtle and overlapping multimodal cues rather than a single dominant signal. We propose a rank-aware multi-encoder framework that selectively…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Junghyun Lee , Hyunseo Kim , Hanna Jang , Junhyug Noh

Functional magnetic resonance imaging (fMRI) is widely used for studying and diagnosing brain disorders, with functional connectivity (FC) matrices providing powerful representations of large-scale neural interactions. However, existing…

Tissues and Organs · Quantitative Biology 2026-04-17 Qianyu Chen , Shujian Yu

Sleep staging is a key method for assessing sleep quality and diagnosing sleep disorders. However, current deep learning methods face challenges: 1) postfusion techniques ignore the varying contributions of different modalities; 2)…

Machine Learning · Computer Science 2025-02-21 Chenjun Zhao , Xuesen Niu , Xinglin Yu , Long Chen , Na Lv , Huiyu Zhou , Aite Zhao

Deep learning and Convolutional Neural Networks (CNNs) have driven major transformations in diverse research areas. However, their limitations in handling low-frequency information present obstacles in certain tasks like interpreting global…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Fuzhi Wu , Jiasong Wu , Youyong Kong , Chunfeng Yang , Guanyu Yang , Huazhong Shu , Guy Carrault , Lotfi Senhadji

This paper explores the development of a multimodal sentiment analysis model that integrates text, audio, and visual data to enhance sentiment classification. The goal is to improve emotion detection by capturing the complex interactions…

Computation and Language · Computer Science 2025-01-15 Hui Lee , Singh Suniljit , Yong Siang Ong

In this study, we focus on heart murmur classification (HMC) and hypothesize that combining neural audio codec representations (NACRs) such as EnCodec with spectral features (SFs), such as MFCC, will yield superior performance. We believe…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-03 Orchid Chetia Phukan , Girish , Mohd Mujtaba Akhtar , Swarup Ranjan Behera , Priyabrata Mallick , Santanu Roy , Arun Balaji Buduru , Rajesh Sharma

The proliferation of deep neural networks has spawned the rapid development of acoustic echo cancellation and noise suppression, and plenty of prior arts have been proposed, which yield promising performance. Nevertheless, they rarely…

Sound · Computer Science 2025-01-27 Zhihang Sun , Andong Li , Rilin Chen , Hao Zhang , Meng Yu , Yi Zhou , Dong Yu

Language Identification, being an important aspect of Automatic Speaker Recognition has had many changes and new approaches to ameliorate performance over the last decade. We compare the performance of using audio spectrum in the log scale…

Computation and Language · Computer Science 2017-05-19 Vrishabh Ajay Lakhani , Rohan Mahadev

Electroencephalogram (EEG)-based emotion recognition is vital for affective computing but faces challenges in feature utilization and cross-domain generalization. This work introduces EmotionCLIP, which reformulates recognition as an…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Rui Yan , Yibo Li , Han Ding , Fei Wang

High-dimensional count data arise in applications such as single-cell RNA sequencing and neural spike trains, where mapping between distributions across successive batches or time points form critical components of data analysis. The recent…

Machine Learning · Statistics 2026-05-11 Ganchao Wei , John Pearson

With the increasing popularity of video sharing websites such as YouTube and Facebook, multimodal sentiment analysis has received increasing attention from the scientific community. Contrary to previous works in multimodal sentiment…

Machine Learning · Computer Science 2018-02-06 Minghai Chen , Sen Wang , Paul Pu Liang , Tadas Baltrušaitis , Amir Zadeh , Louis-Philippe Morency

Mining informative negative instances are of central importance to deep metric learning (DML), however this task is intrinsically limited by mini-batch training, where only a mini-batch of instances is accessible at each iteration. In this…

Machine Learning · Computer Science 2020-04-22 Xun Wang , Haozhi Zhang , Weilin Huang , Matthew R. Scott

Vision-Language Foundation Models (VLFMs) exhibit remarkable generalization, yet their direct application to medical ultrasound is severely hindered by a profound modality gap. The unique acoustic physics of ultrasound, characterized by…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Jingguo Qu , Xinyang Han , Jia Ai , Juan Wu , Tong Zhao , Tonghuan Xiao , Sheng Ning , Yuqi Yang , Jing Qin , Ann Dorothy King , Winnie Chiu-Wing Chu , Jing Cai , Michael Tin-Cheung Ying

Track one of CTI competition is on click-through rate (CTR) prediction. The dataset contains millions of records and each field-wise feature in a record consists of hashed integers for privacy. For this task, the keys of network-based…

Machine Learning · Computer Science 2023-10-17 Yujian Betterest Li , Kai Wu

High computation costs and latency of large language models such as GPT-4 have limited their deployment in clinical settings. Small language models (SLMs) offer a cost-effective alternative, but their limited capacity requires biomedical…

Continual learning (CL) is crucial for deploying large language models (LLMs) in dynamic real-world environments without costly retraining. While recent model ensemble and model merging methods guided by parameter importance have gained…

Machine Learning · Computer Science 2025-06-02 Yujie Feng , Xujia Wang , Zexin Lu , Shenghong Fu , Guangyuan Shi , Yongxin Xu , Yasha Wang , Philip S. Yu , Xu Chu , Xiao-Ming Wu

In this paper, we extensively present our solutions for the MuSe-Stress sub-challenge and the MuSe-Physio sub-challenge of Multimodal Sentiment Challenge (MuSe) 2021. The goal of MuSe-Stress sub-challenge is to predict the level of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Ziyu Ma , Fuyan Ma , Bin Sun , Shutao Li

Using deep learning methods to classify EEG signals can accurately identify people's emotions. However, existing studies have rarely considered the application of the information in another domain's representations to feature selection in…

Signal Processing · Electrical Eng. & Systems 2023-03-22 Kexin Zhu , Xulong Zhang , Jianzong Wang , Ning Cheng , Jing Xiao