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Article type: Research Article
Authors: Mujahid, Muhammada | Rustam, Furqanb | Chakrabarti, Prasunc | Mallampati, Bhargavd | de la Torre Diez, Isabele | Gali, Pradeepd | Chunduri, Venkatad | Ashraf, Imranf; *
Affiliations: [a] Artificial Intelligence & Data Analytics Lab, CCIS, Prince Sultan University, Riyadh 11586, Saudi Arabia | [b] School of Systems and Technology, University of Management and Technology, Lahore, Pakistan | [c] ITM SLS Baroda University, Vadodara, Gujarat, India | [d] University of North Texas, North Texas, Denton, TX, USA | [e] Department of Signal Theory and Communications and Telematic Engineering, Unviersity of Valladolid, Paseo de Belén, Spain | [f] Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si, Korea
Correspondence: [*] Corresponding author: Imran Ashraf, Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si, Korea. E-mail: [email protected].
Abstract: Pneumonia is a dangerous disease that kills millions of children and elderly patients worldwide every year. The detection of pneumonia from a chest x-ray is perpetrated by expert radiologists. The chest x-ray is cheaper and is most often used to diagnose pneumonia. However, chest x-ray-based diagnosis requires expert radiologists which is time-consuming and laborious. Moreover, COVID-19 and pneumonia have similar symptoms which leads to false positives. Machine learning-based solutions have been proposed for the automatic prediction of pneumonia from chest X-rays, however, such approaches lack robustness and high accuracy due to data imbalance and generalization errors. This study focuses on elevating the performance of machine learning models by dealing with data imbalanced problems using data augmentation. Contrary to traditional machine learning models that required hand-crafted features, this study uses transfer learning for automatic feature extraction using Xception and VGG-16 to train classifiers like support vector machine, logistic regression, K nearest neighbor, stochastic gradient descent, extra tree classifier, and gradient boosting machine. Experiments involve the use of hand-crafted features, as well as, transfer learning-based feature extraction for pneumonia detection. Performance comparison using Xception and VGG-16 features suggest that transfer learning-based features tend to show better performance than hand-crafted features and an accuracy of 99.23% can be obtained for pneumonia using chest X-rays.
Keywords: Pneumonia prediction, COVID-19, transfer learning, automatic feature extraction, chest radiographs
DOI: 10.3233/THC-230313
Journal: Technology and Health Care, vol. 32, no. 6, pp. 3847-3870, 2024
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