This book constitutes revised and extended selected papers of the 4th IEEE Colombian Conference, ColCACI 2021, which was held virtually in Colombia at the end of May 2021. The 7 full papers presented in the volume were carefully reviewed and selected from 22 submissions. The papers are organized in topical sections on biomedical applications and alternative proposals and its applications.

This book constitutes revised and extended selected papers of the Third IEEE Colombian Conference, ColCACI 2020, held in Cali, Colombia, August 2020. Due to the COVID-19 pandemic the conference was held online. The12 full papers presented were carefully reviewed and selected from 65 submissions. The papers are organized in topical sections on earth sciences applications; biomedical and power applications; alternative proposals and its applications.

This book constitutes the thoroughly refereed proceedings of the Second IEEE Colombian Conference, ColCACI 2019, held in Barranquilla, Colombia, in June 2019. The 21 full papers presented were carefully reviewed and selected from 59 submissions. The papers cover such topics as video processing; biomedical systems; image processing, etc.

This book constitutes the thoroughly refereed proceedings of the First IEEE Colombian Conference, ColCACI 2018, held in Medellin, Colombia, in May 2018. The 17 full papers presented were carefully reviewed and selected from 60 submissions. The papers are organized in topical sections on artificial neural networks; computational intelligence; computer science.