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A hybrid deep convolutional neural network model for improved diagnosis of pneumonia

Published: 16 November 2023 Publication History

Abstract

Pneumonia is an infection that inflames the air sacs in lungs and is one of the prime causes of deaths under the age of five, all over the world. Moreover, sometimes it became quite difficult to detect and diagnose pneumonia by just looking at the chest plain X-ray images. Therefore, we propose a hybrid deep convolutional neural network model (HDCNN) for improved diagnosis of pneumonia, to simplify the detection for medical practitioners and specialists. In this proposed model, image preprocessing is performed using Student's t distribution, a compact probability density function (cPDF), for better sampling and segregation between the healthy and infected part of lungs, to improve the predictions. Further, a hybrid deep convolutional neural network model is built to extract image features by fine-tuning the pretrained models, viz. Resnet-50, EfficientNet, VGG-16, MobileNetV2 and DenseNet to achieve better results of diagnosis. The proposed hybrid model is analyzed using Grad-CAM visualization, which produces a course localization map, highlighting the infected region in the image used for prediction. The proposed hybrid model is evaluated based on governing parameters, viz. precision, recall, F1-score and accuracy. The results show our proposed model achieves precision of 97.47%, recall 98.09%, F1-score of 97.77% and overall accuracy of 97.69% as compared to other existing models.

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        cover image Neural Computing and Applications
        Neural Computing and Applications  Volume 36, Issue 4
        Feb 2024
        593 pages

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        Springer-Verlag

        Berlin, Heidelberg

        Publication History

        Published: 16 November 2023
        Accepted: 17 October 2023
        Received: 02 March 2023

        Author Tags

        1. Deep convolutional neural network
        2. Student's t distribution
        3. Pneumonia

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