The International Journal of Pattern Recognition and Artificial Intelligence (IJPRAI) welcomes both theory-oriented and innovative applications articles on new developments and is of interest to both researchers in academia and industry. The current scope of this journal includes: • Pattern Recognition • Machine Learning • Deep Learning • Document Analysis • Image Processing • Signal Processing • Computer Vision • Biometrics • Biomedical Image Analysis • Artificial Intelligence In addition to regular papers describing original research work, survey articles on timely and important research topics are highly welcome. Special issues with focused topics within the scope of this journal are also published.