Applications of computational intelligence : 6th IEEE Colombian conference ColCACI 2023 Bogota Colombia July 26 28 2023 : revised selected papers This book constitutes the refereed proceedings of the 6th IEEE Colombian Conference on Applications of Computational Intelligence ColCACI 2023 held in Bogota Colombia during July 2023. A total of 11 full papers were carefully reviewed and selected from 42 submissions. They were organized in topical sections as follows: Biomedical Applications Biological Applications Engineering Applications