Transfer Learning and Data Augmentation Techniques to the COVID-19 Identification Tasks in ComParE 2021

Author(s)

Casanova, Edresson ; Candido Jr, Arnaldo ; Fernandes Jr, Ricardo Corso ; Finger, Marcelo ; Stefanel Gris, Lucas Rafael ; Ponti, Moacir A. ; Pinto da Silva, Daniel Peixoto ; Int Speech Commun Assoc

• Document type: Journal article
• Source: INTERSPEECH 2021; v. N/A, p. 5-pg., 2021-01-01.

Abstract

In this work, we propose several techniques to address data scarceness in ComParE 2021 COVID-19 identification tasks for the application of deep models such as Convolutional Neural Networks. Data is initially preprocessed into spectrogram or MFCC-gram formats. After preprocessing, we combine three different data augmentation techniques to be applied in model training. Then we employ transfer learning techniques from pretrained audio neural networks. Those techniques are applied to several distinct neural architectures. For COVID-19 identification in speech segments, we obtained competitive results. On the other hand, in the identification task based on cough data, we succeeded in producing a noticeable improvement on existing baselines, reaching 75.9% unweighted average recall (UAR). (AU)

• FAPESP's process: 20/06443-5 - Spira: system for early-detection of respiratory insufficiency by voice audio analysis
• Grantee: Marcelo Finger
• Support Opportunities: Regular Research Grants
• FAPESP's process: 14/12236-1 - AnImaLS: Annotation of Images in Large Scale: what can machines and specialists learn from interaction?
• Grantee: Alexandre Xavier Falcão
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 19/07665-4 - Center for Artificial Intelligence
• Grantee: Fabio Gagliardi Cozman
• Support Opportunities: Research Grants - Research Program in eScience and Data Science - Research Centers in Engineering Program