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Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Mach+Vis+Appl 2021 ; 32 (1): 14 Nephropedia Template TP
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A five-layer deep convolutional neural network with stochastic pooling for chest CT-based COVID-19 diagnosis #MMPMID33169050
Zhang YD; Satapathy SC; Liu S; Li GR
Mach Vis Appl 2021[]; 32 (1): 14 PMID33169050show ga
Till August 17, 2020, COVID-19 has caused 21.59 million confirmed cases in more than 227 countries and territories, and 26 naval ships. Chest CT is an effective way to detect COVID-19. This study proposed a novel deep learning model that can diagnose COVID-19 on chest CT more accurately and swiftly. Based on traditional deep convolutional neural network (DCNN) model, we proposed three improvements: (i) We introduced stochastic pooling to replace average pooling and max pooling; (ii) We combined conv layer with batch normalization layer and obtained the conv block (CB); (iii) We combined dropout layer with fully connected layer and obtained the fully connected block (FCB). Our algorithm achieved a sensitivity of 93.28% +/- 1.50%, a specificity of 94.00% +/- 1.56%, and an accuracy of 93.64% +/- 1.42%, in identifying COVID-19 from normal subjects. We proved using stochastic pooling yields better performance than average pooling and max pooling. We compared different structure configurations and proved our 3CB + 2FCB yields the best performance. The proposed model is effective in detecting COVID-19 based on chest CT images.