Journal
JOURNAL OF EXPERIMENTAL & THEORETICAL ARTIFICIAL INTELLIGENCE
Volume 35, Issue 3, Pages 365-375Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/0952813X.2021.2021300
Keywords
ResNet101; COVID-19; CNN; deep forest; deep learning; testing
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In this paper, a method using deep transfer learning and deep forest model to diagnose COVID-19 infection is proposed. The ResNet101 model is used to extract features from chest X-ray images, and the deep forest model is employed to predict COVID-19 infected patients. Experimental results show that the proposed model effectively diagnoses COVID-19 infection with an accuracy of 99.4%.
Coronavirus disease-19 (COVID-19) has rapidly spread all over the world. It is found that the low sensitivity of reverse transcription-polymerase chain reaction (RT-PCR) examinations during the early stage of COVID-19 disease. Thus, efficient models are desirable for early-stage testing of COVID-19 infected patients. Chest X-ray (CXR) images of COVID-19 infected patients have shown some bilateral changes. In this paper, deep transfer learning and a deep forest-based model are proposed to diagnose COVID-19 infection from CXR images. Initially, features of X-ray images are extracted using the well-known deep transfer learning model (i.e., ResNet101), which does not require tuning many parameters compared to the deep convolutional neural network (CNN). After that, the deep forest model is utilised to predict COVID-19 infected patients. The deep forest is based upon ensemble learning and requires a small number of hyper-parameters. Additionally, the proposed model is trained on a multi-class dataset that contains four different classes as COVID-19 (+), pneumonia, tuberculosis, and healthy patients. The comparisons are drawn among the proposed deep transfer learning and deep forest-based models, the competitive models. The obtained results show that the proposed model effectively diagnoses COVID-19 infection with an accuracy of 99.4%.
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