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license: mit
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---
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---
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license: mit
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---
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<div align="center">
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<h1>CoughPhase-CLR</h1>
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<p><em>An acoustics-informed foundation model for coughing sound classification</em></p>
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</div>
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CoughPhase-CLR is a self-supervised foundation model for coughing sound classification. Unlike generic contrastive frameworks that build positive pairs through random cropping, it constructs positive pairs from the distinct **physiological phases of a single cough** (explosive phase vs. intermediate + voiced phases). Built on OPERA-CE (an EfficientNet-B0 encoder trained with a contrastive objective), it is pretrained on ~40 hours of public cough audio and evaluated on five downstream tasks spanning COVID-19 detection, COPD-state classification, gender, and smoker-status prediction. Phase-aware pretraining consistently outperforms standard random cropping on coughs and is more data-efficient.
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<div align="center">
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<img width=80% src="https://cdn-uploads.huggingface.co/production/uploads/68643b761bd37a5e3db83c0f/PxzBkJxuW6JXQbZXiy2aw.png">
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</div>
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The code is available at: https://github.com/your-repo/CoughPhase-CLR
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## Citation
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Kindly cite our work if you find it useful.
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```
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@misc{moldovan2025coughphaseclr,
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title={CoughPhase-CLR: Designing an acoustics-informed foundation model for coughing sound classification},
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author={Marius Moldovan and Anton Batliner and Thomas M. Berghaus and Bj\"orn W. Schuller and Andreas Triantafyllopoulos},
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year={2026},
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}
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```
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