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This report proposes a polyphonic sound event detection (SED) method for the DCASE 2021 Challenge Task 4. The proposed SED model consists of two stages: a mean-teacher model for providing target labels regarding weakly labeled or unlabeled…

Sound · Computer Science 2021-07-07 Nam Kyun Kim , Hong Kook Kim

Consistency regularization and pseudo-labeling have significantly advanced semi-supervised learning (SSL). Prior works have effectively employed Mixup for consistency regularization in SSL. However, our findings indicate that applying Mixup…

Machine Learning · Computer Science 2025-04-18 Haorong Han , Jidong Yuan , Chixuan Wei , Zhongyang Yu

Remote-sensing (RS) Change Detection (CD) aims to detect "changes of interest" from co-registered bi-temporal images. The performance of existing deep supervised CD methods is attributed to the large amounts of annotated data used to train…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Wele Gedara Chaminda Bandara , Vishal M. Patel

Semi-supervised learning (SSL) aims to improve performance by exploiting unlabeled data when labels are scarce. Conventional SSL studies typically assume close environments where important factors (e.g., label, feature, distribution)…

Machine Learning · Computer Science 2024-12-25 Lan-Zhe Guo , Lin-Han Jia , Jie-Jing Shao , Yu-Feng Li

State-of-the-art anomalous sound detection (ASD) systems are often trained by using an auxiliary classification task to learn an embedding space. Doing so enables the system to learn embeddings that are robust to noise and are ignoring…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-18 Kevin Wilkinghoff

This work explores domain generalization (DG) for sound event detection (SED), advancing adaptability to real-world scenarios. Our approach employs a mean-teacher framework with domain generalization named DG-SED to integrate heterogeneous…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-27 Yang Xiao , Han Yin , Jisheng Bai , Rohan Kumar Das

Semi-supervised learning (SSL) is a popular solution to alleviate the high annotation cost in medical image classification. As a main branch of SSL, consistency regularization engages in imposing consensus between the predictions of a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Zhang Qixiang , Yang Yuxiang , Zu Chen , Zhang Jianjia , Wu Xi , Zhou Jiliu , Wang Yan

Sound event detection (SED) has gained increasing attention with its wide application in surveillance, video indexing, etc. Existing models in SED mainly generate frame-level prediction, converting it into a sequence multi-label…

Sound · Computer Science 2021-11-15 Zhirong Ye , Xiangdong Wang , Hong Liu , Yueliang Qian , Rui Tao , Long Yan , Kazushige Ouchi

Self-Supervised Learning (SSL) is a reliable learning mechanism in which a robot uses an original, trusted sensor cue for training to recognize an additional, complementary sensor cue. We study for the first time in SSL how a robot's…

Robotics · Computer Science 2016-03-29 Kevin van Hecke , Guido de Croon , Laurens van der Maaten , Daniel Hennes , Dario Izzo

We propose a novel semi-supervised learning (SSL) method that adopts selective training with pseudo labels. In our method, we generate hard pseudo-labels and also estimate their confidence, which represents how likely each pseudo-label is…

Machine Learning · Computer Science 2021-03-16 Masato Ishii

In this paper, we propose a novel four-stage data augmentation approach to ResNet-Conformer based acoustic modeling for sound event localization and detection (SELD). First, we explore two spatial augmentation techniques, namely audio…

Sound · Computer Science 2023-03-08 Qing Wang , Jun Du , Hua-Xin Wu , Jia Pan , Feng Ma , Chin-Hui Lee

Sound event detection (SED) is an interesting but challenging task due to the scarcity of data and diverse sound events in real life. This paper presents a multi-grained based attention network (MGA-Net) for semi-supervised sound event…

Sound · Computer Science 2022-11-01 Ying Hu , Xiujuan Zhu , Yunlong Li , Hao Huang , Liang He

We propose an augmentation policy for Contrastive Self-Supervised Learning (SSL) in the form of an already established Salient Image Segmentation technique entitled Global Contrast based Salient Region Detection. This detection technique,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Veysel Kocaman , Ofer M. Shir , Thomas Bäck , Ahmed Nabil Belbachir

This paper describes the BUT submission to the ESDD 2026 Challenge, specifically focusing on Track 1: Environmental Sound Deepfake Detection with Unseen Generators. To address the critical challenge of generalizing to audio generated by…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-10 Junyi Peng , Lin Zhang , Jin Li , Oldrich Plchot , Jan Cernocky

Sound event detection (SED) methods typically rely on either strongly labelled data or weakly labelled data. As an alternative, sequentially labelled data (SLD) was proposed. In SLD, the events and the order of events in audio clips are…

Sound · Computer Science 2019-04-30 Yuanbo Hou , Qiuqiang Kong , Shengchen Li , Mark D. Plumbley

In this paper, we propose a novel formula-driven supervised learning (FDSL) framework for pre-training an environmental sound analysis model by leveraging acoustic signals parametrically synthesized through formula-driven methods.…

The problem of fully supervised classification is that it requires a tremendous amount of annotated data, however, in many datasets a large portion of data is unlabeled. To alleviate this problem semi-supervised learning (SSL) leverages the…

Machine Learning · Computer Science 2022-07-26 Ehsan Kazemi

Although increasingly training-expensive, most self-supervised learning (SSL) models have repeatedly been trained from scratch but not fully utilized, since only a few SOTAs are employed for downstream tasks. In this work, we explore a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Shanghua Gao , Pan Zhou , Ming-Ming Cheng , Shuicheng Yan

The lack of labeled data is a major obstacle in many music information retrieval tasks such as melody extraction, where labeling is extremely laborious or costly. Semi-supervised learning (SSL) provides a solution to alleviate the issue by…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-17 Sangeun Kum , Jing-Hua Lin , Li Su , Juhan Nam

Sound Event Detection (SED) is challenging in noisy environments where overlapping sounds obscure target events. Language-queried audio source separation (LASS) aims to isolate the target sound events from a noisy clip. However, this…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-14 Han Yin , Yang Xiao , Jisheng Bai , Rohan Kumar Das