Papers › RCT: Random Consistency Training for Semi-supervised Sound Event Detection

RCT: Random Consistency Training for Semi-supervised Sound Event Detection

21 Oct 2021arXiv:2110.11144archive 2025-07-28

Nian Shao, Erfan Loweimi, Xiaofei Li

Sound event detection (SED), as a core module of acoustic environmental analysis, suffers from the problem of data deficiency. The integration of semi-supervised learning (SSL) largely mitigates such problem while bringing no extra annotation budget. This paper researches on several core modules of SSL, and introduces a random consistency training (RCT) strategy. First, a self-consistency loss is proposed to fuse with the teacher-student model to stabilize the training. Second, a hard mixup data augmentation is proposed to account for the additive property of sounds. Third, a random augmentation scheme is applied to flexibly combine different types of data augmentations. Experiments show that the proposed strategy outperform other widely-used strategies.

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