Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Automatic classification between COVID-19 pneumonia, non-COVID-19
  pneumonia, and the healthy on chest X-ray image: combination of data
  augmentation methods   Purpose: This study aimed to develop and validate computer-aided diagnosis
(CXDx) system for classification between COVID-19 pneumonia, non-COVID-19
pneumonia, and the healthy on chest X-ray (CXR) images.
  Materials and Methods: From two public datasets, 1248 CXR images were
obtained, which included 215, 533, and 500 CXR images of COVID-19 pneumonia
patients, non-COVID-19 pneumonia patients, and the healthy samples. The
proposed CADx system utilized VGG16 as a pre-trained model and combination of
conventional method and mixup as data augmentation methods. Other types of
pre-trained models were compared with the VGG16-based model. Single type or no
data augmentation methods were also evaluated. Splitting of
training/validation/test sets was used when building and evaluating the CADx
system. Three-category accuracy was evaluated for test set with 125 CXR images.
  Results: The three-category accuracy of the CAD system was 83.6% between
COVID-19 pneumonia, non-COVID-19 pneumonia, and the healthy. Sensitivity for
COVID-19 pneumonia was more than 90%. The combination of conventional method
and mixup was more useful than single type or no data augmentation method.
  Conclusion: This study was able to create an accurate CADx system for the
3-category classification. Source code of our CADx system is available as open
source for COVID-19 research.

21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph