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Open AccessArticle

A Novel Transfer Learning Based Approach for Pneumonia Detection in Chest X-ray Images

School of Computer Science and Engineering, Lovely Professional University, Punjab 144411, India
Maharaja Agrasen Institute of Technology, New Delhi 110034, India
Department of Information Engineering, University of Padova, 35131 Padova, Italy
School of Information Systems, Science and Engineering Faculty, Queensland University of Technology, Brisbane City 4000 QLD, Australia
Faculty of Applied Mathematics, Silesian University of Technology, 44-100 Gliwice, Poland
Graduate Program in Applied Informatics, University of Fortaleza, Fortaleza 60811-905, CE, Brazil
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(2), 559;
Received: 17 December 2019 / Revised: 6 January 2020 / Accepted: 9 January 2020 / Published: 12 January 2020
(This article belongs to the Special Issue Signal Processing and Machine Learning for Biomedical Data)
Pneumonia is among the top diseases which cause most of the deaths all over the world. Virus, bacteria and fungi can all cause pneumonia. However, it is difficult to judge the pneumonia just by looking at chest X-rays. The aim of this study is to simplify the pneumonia detection process for experts as well as for novices. We suggest a novel deep learning framework for the detection of pneumonia using the concept of transfer learning. In this approach, features from images are extracted using different neural network models pretrained on ImageNet, which then are fed into a classifier for prediction. We prepared five different models and analyzed their performance. Thereafter, we proposed an ensemble model that combines outputs from all pretrained models, which outperformed individual models, reaching the state-of-the-art performance in pneumonia recognition. Our ensemble model reached an accuracy of 96.4% with a recall of 99.62% on unseen data from the Guangzhou Women and Children’s Medical Center dataset. View Full-Text
Keywords: deep learning; transfer learning; medical image processing; computer-aided diagnosis deep learning; transfer learning; medical image processing; computer-aided diagnosis
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Chouhan, V.; Singh, S.K.; Khamparia, A.; Gupta, D.; Tiwari, P.; Moreira, C.; Damaševičius, R.; de Albuquerque, V.H.C. A Novel Transfer Learning Based Approach for Pneumonia Detection in Chest X-ray Images. Appl. Sci. 2020, 10, 559.

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