Effect of Different Batch Size Parameters on Predicting of COVID19 Cases
This research provides insights into hyperparameter tuning for medical image classification models, specifically for researchers and practitioners developing AI-assisted diagnostic tools for COVID-19, though the findings are incremental.
This study investigated the impact of various batch sizes (3, 10, 20, 30, 40, 50) on the performance of a pre-trained ResNet50 model for COVID-19 detection from X-ray images, classifying four categories: Viral Pneumonia, COVID-19, Normal, and Bacterial Pneumonia. The highest COVID-19 detection rate was 95.17% with a batch size of 3, and the overall accuracy reached 97.97% with a batch size of 20.
The new coronavirus 2019, also known as COVID19, is a very serious epidemic that has killed thousands or even millions of people since December 2019. It was defined as a pandemic by the world health organization in March 2020. It is stated that this virus is usually transmitted by droplets caused by sneezing or coughing, or by touching infected surfaces. The presence of the virus is detected by real-time reverse transcriptase polymerase chain reaction (rRT-PCR) tests with the help of a swab taken from the nose or throat. In addition, X-ray and CT imaging methods are also used to support this method. Since it is known that the accuracy sensitivity in rRT-PCR test is low, auxiliary diagnostic methods have a very important place. Computer-aided diagnosis and detection systems are developed especially with the help of X-ray and CT images. Studies on the detection of COVID19 in the literature are increasing day by day. In this study, the effect of different batch size (BH=3, 10, 20, 30, 40, and 50) parameter values on their performance in detecting COVID19 and other classes was investigated using data belonging to 4 different (Viral Pneumonia, COVID19, Normal, Bacterial Pneumonia) classes. The study was carried out using a pre-trained ResNet50 convolutional neural network. According to the obtained results, they performed closely on the training and test data. However, it was observed that the steady state in the test data was delayed as the batch size value increased. The highest COVID19 detection was 95.17% for BH = 3, while the overall accuracy value was 97.97% with BH = 20. According to the findings, it can be said that the batch size value does not affect the overall performance significantly, but the increase in the batch size value delays obtaining stable results.