
| 10.1016/j.imu.2020.100360
http://scihub22266oqcxt.onion/10.1016/j.imu.2020.100360
 32501424!7255267!32501424
free
free
free
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Inform+Med+Unlocked 2020 ; 19 (�): 100360 Nephropedia Template TP
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A modified deep convolutional neural network for detecting COVID-19 and pneumonia from chest X-ray images based on the concatenation of Xception and ResNet50V2 #MMPMID32501424Rahimzadeh M; Attar AInform Med Unlocked 2020[]; 19 (�): 100360 PMID32501424show ga
In this paper, we have trained several deep convolutional networks with introduced training techniques for classifying X-ray images into three classes: normal, pneumonia, and COVID-19, based on two open-source datasets. Our data contains 180 X-ray images that belong to persons infected with COVID-19, and we attempted to apply methods to achieve the best possible results. In this research, we introduce some training techniques that help the network learn better when we have an unbalanced dataset (fewer cases of COVID-19 along with more cases from other classes). We also propose a neural network that is a concatenation of the Xception and ResNet50V2 networks. This network achieved the best accuracy by utilizing multiple features extracted by two robust networks. For evaluating our network, we have tested it on 11302 images to report the actual accuracy achievable in real circumstances. The average accuracy of the proposed network for detecting COVID-19 cases is 99.50%, and the overall average accuracy for all classes is 91.4%.�
  
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