ECG Abnormalities Recognition Using Convolutional Network With Global Skip Connections and Custom Loss Function
| Autor: | Marina Ronzhina, Tomas Vicar, Oto Janousek, Petra Novotna, Jakub Hejc |
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| Rok vydání: | 2020 |
| Předmět: |
Computer science
business.industry Generalization Reliability (computer networking) Deep learning Bayesian probability Pattern recognition 02 engineering and technology 010501 environmental sciences 01 natural sciences Convolutional neural network Ranking 020204 information systems Test score 0202 electrical engineering electronic engineering information engineering Preprocessor Artificial intelligence business 0105 earth and related environmental sciences |
| Zdroj: | CinC |
| ISSN: | 2325-887X |
| Popis: | The latest trends in clinical care and telemedicine suggest a demand for a reliable automated electrocardiogram (ECG) signal classification methods. In this paper, we present customized deep learning model for ECG classification as a part of the Physionet/CinC Challenge 2020. The method is based on modified ResNet type convolutional neural network and is capable to automatically recognize 24 cardiac abnormalities using 12-lead ECG. We have adopted several preprocessing and learning techniques including custom tailored loss function, dedicated classification layer and Bayesian threshold optimization which have major positive impact on the model performance. At the official phase of the Challenge, our team - BUTTeam - reached a challenge validation score of 0.696, and the full test score of 0.202, placing us 21 out of 40 in the official ranking. This implies that our method performed well on data from the same source (reached first place with validation score), however, it has very poor generalization to data from different sources. |
| Databáze: | OpenAIRE |
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