QTI Submission to DCASE 2021: residual normalization for device-imbalanced acoustic scene classification with efficient design. (arXiv:2206.13909v1 [cs.SD])

This technical report describes the details of our TASK1A submission of the
DCASE2021 challenge. The goal of the task is to design an audio scene
classification system for device-imbalanced datasets under the constraints of
model complexity. This report introduces four methods to achieve the goal.
First, we propose Residual Normalization, a novel feature normalization method
that uses instance normalization with a shortcut path to discard unnecessary
device-specific information without losing useful information for
classification. Second, we design an efficient architecture, …

arxiv classification design normalization