COVID-19 diagnosis using state-of-the-art CNN architecture features and Bayesian Optimization

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dc.contributor.authorAslan, Muhammet Fatih
dc.contributor.authorSabanci, Kadir
dc.contributor.authorDurdu, Akif
dc.contributor.authorUnlersen, Muhammed Fahri
dc.date.accessioned2024-02-23T14:02:36Z
dc.date.available2024-02-23T14:02:36Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractThe coronavirus outbreak 2019, called COVID-19, which originated in Wuhan, negatively affected the lives of millions of people and many people died from this infection. To prevent the spread of the disease, which is still in effect, various restriction decisions have been taken all over the world. In addition, the number of COVID-19 tests has been increased to quarantine infected people. However, due to the problems encountered in the supply of RTPCR tests and the ease of obtaining Computed Tomography and X-ray images, imaging-based methods have become very popular in the diagnosis of COVID-19. Therefore, studies using these images to classify COVID-19 have increased. This paper presents a classification method for computed tomography chest images in the COVID-19 Radiography Database using features extracted by popular Convolutional Neural Networks (CNN) models (AlexNet, ResNet18, ResNet50, Inceptionv3, Densenet201, Inceptionresnetv2, MobileNetv2, GoogleNet). The determination of hyperparameters of Machine Learning (ML) algorithms by Bayesian optimization, and ANN-based image segmentation are the two main contributions in this study. First of all, lung segmentation is performed automatically from the raw image with Artificial Neural Networks (ANNs). To ensure data diversity, data augmentation is applied to the COVID-19 classes, which are fewer than the other two classes. Then these images are applied as input to five different CNN models. The features extracted from each CNN model are given as input to four different ML algorithms, namely Support Vector Machine (SVM), k-Nearest Neighbors (k-NN), Naive Bayes (NB), and Decision Tree (DT) for classification. To achieve the most successful classification accuracy, the hyperparameters of each ML algorithm are determined using Bayesian optimization. With the classification made using these hyperparameters, the highest success is obtained as 96.29% with the DenseNet201 model and SVM algorithm. The Sensitivity, Precision, Specificity, MCC, and F1-Score metric values for this structure are 0.9642, 0.9642, 0.9812, 0.9641 and 0.9453, respectively. These results showed that ML methods with the most optimum hyperparameters can produce successful results.en_US
dc.identifier.doi10.1016/j.compbiomed.2022.105244
dc.identifier.issn0010-4825
dc.identifier.issn1879-0534
dc.identifier.pmid35077936en_US
dc.identifier.scopus2-s2.0-85123167294en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.compbiomed.2022.105244
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11754
dc.identifier.volume142en_US
dc.identifier.wosWOS:000747363200002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofComputers In Biology And Medicineen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBayesian Optimizationen_US
dc.subjectCovid-19 Pandemicen_US
dc.subjectConvolutional Neural Networksen_US
dc.subjectMachine Learningen_US
dc.titleCOVID-19 diagnosis using state-of-the-art CNN architecture features and Bayesian Optimizationen_US
dc.typeArticleen_US

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