| 2016 | CLEI | A neuroevolutive approach to the normal/abnormal classification in digital MR brain images. | C. Roxana E. Limache, Christian E. Portugal-Zambrano |
| 2016 | CLEI | Computer vision grading system for physical quality evaluation of green coffee beans. | Christian E. Portugal-Zambrano, Juan C. Gutirrez-Cceres, Juan Ramirez-Ticona, Csar Beltrn Castan |
| 2016 | CLEI | Cell-phone based model for the automatic classification of coffee beans defects using white patch. | Juan Ramirez-Ticona, Juan C. Gutirrez-Cceres, Christian E. Portugal-Zambrano |
| 2014 | CBMS | Computer Aided Medical Diagnosis Tool to Detect Normal/Abnormal Studies in Digital MR Brain Images. | Juan C. Gutirrez-Cceres, Christian E. Portugal-Zambrano, Csar Beltrn Castan |
| 2014 | CLEI | An approach for improve the recognition of defects in coffee beans using retinex algorithms. | Rel Guzman Apaza, Christian E. Portugal-Zambrano, Juan C. Gutirrez-Cceres, Csar Beltrn Castan |
| 2014 | CLEI | Automatic classification of physical defects in green coffee beans using CGLCM and SVM. | Rayner H. Montes Condori, Juan H. Chuctaya Humari, Christian E. Portugal-Zambrano, Juan C. Gutirrez-Cceres, Csar Beltrn Castan |
| 2012 | CLEI | Automatic classification of agro-industrial products through dynamic membership functions in Fuzzy logic systems: An approach to Scallops. | Roy Perez-Pinto, Christian E. Portugal-Zambrano, Dennis Barrios-Aranibar |