Advances in computing : 15th Colombian Congress CCC 2021 Bogota Colombia November 22 26 2021 revised selected papers This book constitutes revised selected papers from the refereed proceedings of the 15th Colombian Congress on Advances in Computing CCC 2021 held in Bogotá Colombia during November 22 26 2021.The 8 full papers and 2 short papers included in this book were carefully reviewed and selected from 47 submissions. They were organized in topical sections as follows: Artificial intelligence; educational informatics; and information systems