Genaral Track 5: Information Systems and Technologies.- International Workshop on Automatic landform classification: spatial methods and applications (ALCSMA 2021).- International Workshop on Application of Numerical Analysis to Imaging Science (ANAIS 2021).- International Workshop on Advances in information Systems and Technologies for Emergency management, risk assessment and mitigationbased on the Resilience concepts (ASTER 2021).- International Workshop on Advances in Web Based Learning (AWBL 2021).