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Alzheimer's disease (AD) constitutes a complex neurocognitive disease and is the main cause of dementia. Although many studies have been proposed targeting at diagnosing dementia through spontaneous speech, there are still limitations.…

Computation and Language · Computer Science 2023-08-24 Loukas Ilias , Dimitris Askounis

While Transformer networks benefit from a global receptive field, their quadratic cost relative to sequence length restricts their application to long sequences and high-resolution inputs. We introduce Fast Multipole Attention (FMA), a…

Computation and Language · Computer Science 2025-09-19 Yanming Kang , Giang Tran , Hans De Sterck

Dynamic Facial Expression Recognition (DFER) plays a critical role in affective computing and human-computer interaction. Although existing methods achieve comparable performance, they inevitably suffer from performance degradation under…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Feng-Qi Cui , Anyang Tong , Jinyang Huang , Jie Zhang , Dan Guo , Zhi Liu , Meng Wang

Audio-visual emotion recognition (AVER) methods typically fuse utterance-level features, and even frame-level attention models seldom address the frame-rate mismatch across modalities. In this paper, we propose a Transformer-based framework…

Multimedia · Computer Science 2026-03-13 Inyong Koo , yeeun Seong , Minseok Son , Jaehyuk Jang , Changick Kim

Human motion diffusion models can synthesize action sequences from text, but controlling motion intensity remains challenging. Existing approaches rely on effort-related adverbs, which are ambiguous and fail to capture quantitative aspects…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Joshua Siy , Huakun Liu , Yutaro Hirao , Monica Perusquia-Hernandez , Hideaki Uchiyama , Kiyoshi Kiyokawa

Learning from multi-variate time-series with heterogeneous channel configurations remains a fundamental challenge for deep neural networks, particularly in clinical domains such as intracranial electroencephalography (iEEG), where channel…

Machine Learning · Computer Science 2025-08-26 Francesco Carzaniga , Michael Hersche , Abu Sebastian , Kaspar Schindler , Abbas Rahimi

Although mask-based beamforming is a powerful speech enhancement approach, it often requires manual parameter tuning to handle moving speakers. Recently, this approach was augmented with an attention-based spatial covariance matrix…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-18 Marvin Tammen , Tsubasa Ochiai , Marc Delcroix , Tomohiro Nakatani , Shoko Araki , Simon Doclo

Active speaker detection requires a solid integration of multi-modal cues. While individual modalities can approximate a solution, accurate predictions can only be achieved by explicitly fusing the audio and visual features and modeling…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Juan León-Alcázar , Fabian Caba Heilbron , Ali Thabet , Bernard Ghanem

In this work, a parameter-efficient attention module is presented for emotion classification using a limited, or relatively small, number of electroencephalogram (EEG) signals. This module is called the Monotonicity Constrained Attention…

Signal Processing · Electrical Eng. & Systems 2022-10-14 Dongyang Kuang , Craig Michoski , Wenting Li , Rui Guo

The increasing number of microphone-equipped personal devices offers great flexibility and potential using them as ad-hoc microphone arrays in dynamic meeting environments. However, most existing approaches are designed for…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-23 Gene-Ping Yang , Sebastian Braun

The scarcity of annotated data, particularly for rare diseases, limits the variability of training data and the range of detectable lesions, presenting a significant challenge for supervised anomaly detection in medical imaging. To solve…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Yiming Huang , Guole Liu , Yaoru Luo , Ge Yang

In this work, we propose a Multi-Window Masked Autoencoder (MW-MAE) fitted with a novel Multi-Window Multi-Head Attention (MW-MHA) module that facilitates the modelling of local-global interactions in every decoder transformer block through…

Sound · Computer Science 2023-10-03 Sarthak Yadav , Sergios Theodoridis , Lars Kai Hansen , Zheng-Hua Tan

Multimodal time series (MTS) anomaly detection is crucial for maintaining the safety and stability of working devices (e.g., water treatment system and spacecraft), whose data are characterized by multivariate time series with diverse…

Machine Learning · Computer Science 2023-10-18 Chaoyue Ding , Shiliang Sun , Jing Zhao

Sound event localization and detection consists of two subtasks which are sound event detection and direction-of-arrival estimation. While sound event detection mainly relies on time-frequency patterns to distinguish different sound…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-07 Thi Ngoc Tho Nguyen , Karn Watcharasupat , Ngoc Khanh Nguyen , Douglas L. Jones , Woon Seng Gan

This paper presents our work of training acoustic event detection (AED) models using unlabeled dataset. Recent acoustic event detectors are based on large-scale neural networks, which are typically trained with huge amounts of labeled data.…

Audio and Speech Processing · Electrical Eng. & Systems 2019-05-01 Bowen Shi , Ming Sun , Chieh-Chi Kao , Viktor Rozgic , Spyros Matsoukas , Chao Wang

Acoustic event classification (AEC) and acoustic event detection (AED) refer to the task of detecting whether specific target events occur in audios. As long short-term memory (LSTM) leads to state-of-the-art results in various speech…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-18 Chieh-Chi Kao , Ming Sun , Weiran Wang , Chao Wang

Social media has a significant impact on people's lives. Hate speech on social media has emerged as one of society's most serious issues in recent years. Text and pictures are two forms of multimodal data that are distributed within…

Computation and Language · Computer Science 2024-09-18 Anusha Chhabra , Dinesh Kumar Vishwakarma

Clinical sleep analysis require manual analysis of sleep patterns for correct diagnosis of sleep disorders. However, several studies have shown significant variability in manual scoring of clinically relevant discrete sleep events, such as…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Alexander Neergaard Olesen , Poul Jennum , Emmanuel Mignot , Helge B. D. Sorensen

Joint sound event localization and detection (SELD) is an emerging audio signal processing task adding spatial dimensions to acoustic scene analysis and sound event detection. A popular approach to modeling SELD jointly is using…

Sound · Computer Science 2021-09-28 Parthasaarathy Sudarsanam , Archontis Politis , Konstantinos Drossos

Medical event prediction (MEP) is a fundamental task in the medical domain, which needs to predict medical events, including medications, diagnosis codes, laboratory tests, procedures, outcomes, and so on, according to historical medical…

Machine Learning · Computer Science 2022-05-02 Sicen Liu , Xiaolong Wang , Yang Xiang , Hui Xu , Hui Wang , Buzhou Tang