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Leveraging Hierarchical Structures for Few-Shot Musical Instrument Recognition

2021-07-14 22:50:24
Hugo Flores Garcia, Aldo Aguilar, Ethan Manilow, Bryan Pardo
arXiv_SD
             
Abstract

Deep learning work on musical instrument recognition has generally focused on instrument classes for which we have abundant data. In this work, we exploit hierarchical relationships between instruments in a few-shot learning setup to enable classification of a wider set of musical instruments, given a few examples at inference. We apply a hierarchical loss function to the training of prototypical networks, combined with a method to aggregate prototypes hierarchically, mirroring the structure of a predefined musical instrument hierarchy. These extensions require no changes to the network architecture and new levels can be easily added or removed. Compared to a non-hierarchical few-shot baseline, our method leads to a significant increase in classification accuracy and significant decrease mistake severity on instrument classes unseen in training.

Abstract (translated)

URL

https://arxiv.org/abs/2107.07029

PDF

https://arxiv.org/pdf/2107.07029.pdf

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