# Phonocardiogram Signal Denoising Based on Nonnegative Matrix Factorization and Adaptive Contour Representation Computation

> Research article (IEEE Signal Processing Letters, 2018) · cited 31× · AI/ML

**Wikidata**: [openalex:W2891129013](https://www.wikidata.org/wiki/openalex:W2891129013)  
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