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Self-Training for Sound Event Detection in Audio Mixtures
Conference proceeding

Self-Training for Sound Event Detection in Audio Mixtures

Sangwook Park, Ashwin Bellur, David K. Han, Mounya Elhilali and IEEE
ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), v 2021-, pp 341-345
06 Jun 2021

Abstract

DCASE2020 Event detection pseudo label reliability Semi-supervised learning Signal processing algorithms sound event detection Supervised learning Tagging Training Training data Visual analytics
Sound event detection (SED) takes on the task of identifying presence of specific sound events in a complex audio recording. SED has tremendous implications in video analytics, smart speaker algorithms and audio tagging. Recent advances in deep learning have afforded remarkable advances in performance of SED systems; albeit at the cost of extensive labeling efforts to train supervised methods using fully described sound class labels and timestamps. In order to address limitations in availability of training data, this work proposes a self-training technique to leverage unlabeled datasets in supervised learning using pseudo label estimation. This approach proposes a dual-term objective function: a classification loss for the original labels and expectation loss for pseudo labels. The proposed self training technique is applied to sound event detection in the context of the DCASE 2020 challenge, and reports a notable improvement over the baseline system for this task. The self-training approach is particularly effective in extending the labeled database with concurrent sound events.

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11 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Acoustics
Computer Science, Artificial Intelligence
Computer Science, Software Engineering
Engineering, Electrical & Electronic
Imaging Science & Photographic Technology
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