EZhouNet:A framework based on graph neural network and anchor interval for the respiratory sound event detection

• URL: http://arxiv.org/abs/2509.01153v2
• Date: Thu, 04 Sep 2025 01:07:56 GMT
• Title: EZhouNet:A framework based on graph neural network and anchor interval for the respiratory sound event detection
• Authors: Yun Chu, Qiuhao Wang, Enze Zhou, Qian Liu, Gang Zheng,
• Abstract summary: We propose a graph neural network-based framework with anchor intervals, capable of handling variable-length audio.<n>Our method improves both the flexibility and applicability of respiratory sound detection.
• Score: 7.29257171556766
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Auscultation is a key method for early diagnosis of respiratory and pulmonary diseases, relying on skilled healthcare professionals. However, the process is often subjective, with variability between experts. As a result, numerous deep learning-based automatic classification methods have emerged, most of which focus on respiratory sound classification. In contrast, research on respiratory sound event detection remains limited. Existing sound event detection methods typically rely on frame-level predictions followed by post-processing to generate event-level outputs, making interval boundaries challenging to learn directly. Furthermore, many approaches can only handle fixed-length audio, limiting their applicability to variable-length respiratory sounds. Additionally, the impact of respiratory sound location information on detection performance has not been extensively explored. To address these issues, we propose a graph neural network-based framework with anchor intervals, capable of handling variable-length audio and providing more precise temporal localization for abnormal respiratory sound events. Our method improves both the flexibility and applicability of respiratory sound detection. Experiments on the SPRSound 2024 and HF Lung V1 datasets demonstrate the effectiveness of the proposed approach, and incorporating respiratory position information enhances the discrimination between abnormal sounds. The reference implementation is available at https://github.com/chumingqian/EzhouNet.

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