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Automated diagnosis of childhood pneumonia in chest radiographs using modified densely residual bottleneck-layer features

Lookup NU author(s): Dr Bo WeiORCiD, Dr Wai Lok Woo



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


© 2021 by the authors. Licensee MDPI, Basel, Switzerland.Pneumonia is a severe infection that affects the lungs due to viral or bacterial infections such as the novel COVID-19 virus resulting in mild to critical health conditions. One way to diagnose pneumonia is to screen prospective patient’s lungs using either a Computed Tomography (CT) scan or chest X-ray. To help radiologists in processing a large amount of data especially during pandemics, and to overcome some limitations in deep learning approaches, this paper introduces a new approach that utilizes a few light-weighted densely connected bottleneck residual block features to extract rich spatial information. Then, shrinking data batches into a single vector using four efficient methods. Next, an adaptive weight setup is proposed utilizing Adaboost ensemble learning which adaptively sets weight for each classifier depending on the scores generated to achieve the highest true positive rates while maintaining low negative rates. The proposed method is evaluated using the Kaggle chest X-ray public dataset and attained an accuracy of 99.6% showing superiority to other deep networks-based pneumonia diagnosis methods.

Publication metadata

Author(s): Alkassar S, Abdullah MAM, Jebur BA, Abdul-Majeed GH, Wei B, Woo WL

Publication type: Article

Publication status: Published

Journal: Applied Sciences

Year: 2021

Volume: 11

Issue: 23

Print publication date: 01/12/2021

Online publication date: 03/12/2021

Acceptance date: 30/11/2021

Date deposited: 19/05/2023

ISSN (electronic): 2076-3417

Publisher: MDPI


DOI: 10.3390/app112311461


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