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Acoustic scene classification (ASC) predominantly relies on supervised approaches. However, acquiring labeled data for training ASC models is often costly and time-consuming. Recently, self-supervised learning (SSL) has emerged as a…

Sound · Computer Science 2024-08-28 Yiqiang Cai , Shengchen Li , Xi Shao

In this paper, we propose a sub-utterance unit selection framework to remove acoustic segments in audio recordings that carry little information for acoustic scene classification (ASC). Our approach is built upon a universal set of acoustic…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-04 Hu Hu , Sabato Marco Siniscalchi , Yannan Wang , Xue Bai , Jun Du , Chin-Hui Lee

Machine anomalous sound detection (ASD) is a valuable technique across various applications. However, its generalization performance is often limited due to challenges in data collection and the complexity of acoustic environments. Inspired…

Sound · Computer Science 2025-08-19 Bing Han , Anbai Jiang , Xinhu Zheng , Wei-Qiang Zhang , Jia Liu , Pingyi Fan , Yanmin Qian

Pre-training methods have achieved significant performance improvements in sound event localization and detection (SELD) tasks, but existing Transformer-based models suffer from high computational complexity. In this work, we propose a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-17 Wenmiao Gao , Yang Xiao

Semantic segmentation of remote sensing imagery is a fundamental task in computer vision, supporting a wide range of applications such as land use classification, urban planning, and environmental monitoring. However, this task is often…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Qinfeng Zhu , Han Li , Liang He , Lei Fan

Advanced speech synthesis technologies have enabled highly realistic speech generation, posing security risks that motivate research into audio deepfake detection (ADD). While state space models (SSMs) offer linear complexity, pure causal…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-20 Kwok-Ho Ng , Tingting Song , Yongdong Wu , Zhihua Xia

Efficient extraction of spectral sequences and geospatial information has always been a hot topic in hyperspectral image classification. In terms of spectral sequence feature capture, RNN and Transformer have become mainstream…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Aitao Yang , Min Li , Yao Ding , Leyuan Fang , Yaoming Cai , Yujie He

Arbitrary scale super-resolution (ASSR) aims to super-resolve low-resolution images to high-resolution images at any scale using a single model, addressing the limitations of traditional super-resolution methods that are restricted to…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Peizhe Xia , Long Peng , Xin Di , Renjing Pei , Yang Wang , Yang Cao , Zheng-Jun Zha

Time series classification (TSC) is crucial in numerous real-world applications, such as environmental monitoring, medical diagnosis, and posture recognition. TSC tasks require models to effectively capture discriminative information for…

Machine Learning · Computer Science 2025-12-10 Da Zhang , Bingyu Li , Zhiyuan Zhao , Yanhan Zhang , Junyu Gao , Feiping Nie , Xuelong Li

Mamba, a selective state-space model (SSM), has emerged as an efficient alternative to Transformers for speech modeling, enabling long-sequence processing with linear complexity. While effective in speech separation, existing approaches,…

Sound · Computer Science 2026-01-26 Ke Xue , Chang Sun , Rongfei Fan , Jing Wang , Han Hu

Speech classification tasks often require powerful language understanding models to grasp useful features, which becomes problematic when limited training data is available. To attain superior classification performance, we propose to…

Computation and Language · Computer Science 2024-07-26 Nicolae-Catalin Ristea , Andrei Anghel , Radu Tudor Ionescu

Audio scene classification, the problem of predicting class labels of audio scenes, has drawn lots of attention during the last several years. However, it remains challenging and falls short of accuracy and efficiency. Recently,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-21 Kele Xu , Dawei Feng , Haibo Mi , Boqing Zhu , Dezhi Wang , Lilun Zhang , Hengxing Cai , Shuwen Liu

In this paper, we present deep learning frameworks for audio-visual scene classification (SC) and indicate how individual visual and audio features as well as their combination affect SC performance. Our extensive experiments, which are…

Sound · Computer Science 2021-06-17 Lam Pham , Alexander Schindler , Mina Schütz , Jasmin Lampert , Sven Schlarb , Ross King

Respiratory diseases remain major global health challenges, and traditional auscultation is often limited by subjectivity, environmental noise, and inter-clinician variability. This study presents an explainable multimodal deep learning…

Sound · Computer Science 2025-12-02 S M Asiful Islam Saky , Md Rashidul Islam , Md Saiful Arefin , Shahaba Alam

Recently, deep learning models have achieved excellent performance in hyperspectral image (HSI) classification. Among the many deep models, Transformer has gradually attracted interest for its excellence in modeling the long-range…

Computer Vision and Pattern Recognition · Computer Science 2024-08-02 Lingbo Huang , Yushi Chen , Xin He

Classifying hyperspectral images is a difficult task in remote sensing, due to their complex high-dimensional data. To address this challenge, we propose HSIMamba, a novel framework that uses bidirectional reversed convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Judy X Yang , Jun Zhou , Jing Wang , Hui Tian , Alan Wee Chung Liew

In recent speech enhancement (SE) research, transformer and its variants have emerged as the predominant methodologies. However, the quadratic complexity of the self-attention mechanism imposes certain limitations on practical deployment.…

Sound · Computer Science 2025-01-03 Junyu Wang , Zizhen Lin , Tianrui Wang , Meng Ge , Longbiao Wang , Jianwu Dang

Deep learning-based single-channel speaker separation has improved significantly in recent years largely due to the introduction of the transformer-based attention mechanism. However, these improvements come at the expense of intense…

In this paper, we propose a method for incremental learning of two distinct tasks over time: acoustic scene classification (ASC) and audio tagging (AT). We use a simple convolutional neural network (CNN) model as an incremental learner to…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-25 Manjunath Mulimani , Annamaria Mesaros

The large integration of microphones into devices increases the opportunities for Acoustic Side-Channel Attacks (ASCAs), as these can be used to capture keystrokes' audio signals that might reveal sensitive information. However, the current…

Cryptography and Security · Computer Science 2025-04-17 Seyyed Ali Ayati , Jin Hyun Park , Yichen Cai , Marcus Botacin