Applications of deep learning in disease diagnosis of chest radiographs: A survey on materials and methods

•Methods for diagnosis of lung diseases in chest radiography are systematically reviewed.•Detection of pneumonia-causing diseases is quite vital to attaining healthy lungs.•Detection, segmentation, and classification of lung nodules are essential to prevent lung cancer from manifesting.•Current trends and state of the art methods for exploring diseases in chest radiographs are included.•Descriptions of public databases have been included in the context.