Crackle Detection In Lung Sounds Using Transfer Learning And Multi-Input Convolitional Neural Networks

• URL: http://arxiv.org/abs/2104.14921v1
• Date: Fri, 30 Apr 2021 11:32:42 GMT
• Title: Crackle Detection In Lung Sounds Using Transfer Learning And Multi-Input Convolitional Neural Networks
• Authors: Truc Nguyen and Franz Pernkopf
• Abstract summary: We use transfer learning to tackle the mismatch of the recording setup for crackle detection in lung sounds. A single input convolutional neural network (CNN) model is pre-trained on a source domain using ICBHI 2017, the largest publicly available database of lung sounds. The multi-input model is then fine-tuned on the target domain of our self-collected lung sound database for classifying crackles and normal lung sounds.
• Score: 26.399917342840265
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large annotated lung sound databases are publicly available and might be used to train algorithms for diagnosis systems. However, it might be a challenge to develop a well-performing algorithm for small non-public data, which have only a few subjects and show differences in recording devices and setup. In this paper, we use transfer learning to tackle the mismatch of the recording setup. This allows us to transfer knowledge from one dataset to another dataset for crackle detection in lung sounds. In particular, a single input convolutional neural network (CNN) model is pre-trained on a source domain using ICBHI 2017, the largest publicly available database of lung sounds. We use log-mel spectrogram features of respiratory cycles of lung sounds. The pre-trained network is used to build a multi-input CNN model, which shares the same network architecture for respiratory cycles and their corresponding respiratory phases. The multi-input model is then fine-tuned on the target domain of our self-collected lung sound database for classifying crackles and normal lung sounds. Our experimental results show significant performance improvements of 9.84% (absolute) in F-score on the target domain using the multi-input CNN model based on transfer learning for crackle detection in adventitious lung sound classification task.

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