| 2025 | ICCSA | Multicriteria Analysis Based on GIS for the Potential Zoning of Artisanal Tilapia Aquaculture (Oreochromis sp). | Marcelo Fonseca, Marcelo Len, David Almeida, Franklin Rodriguez, Fabricio Echeverria |
| 2024 | WorldCIST | Language Policy in the Social Media - Efforts to Revitalize Indigenous Languages in Peru. | Frederick Schruba, Marcelo Len, Ren Faruk Garzozi-Pincay, Darlys Sares |
| 2023 | ICCSA | Assessing Management Effectiveness: Manglares El Salado Fauna Production Reserve Study Case. | Miriam Vanessa Hinojosa-Ramos, Marcelo Len, Paulina Len, Ricardo Arevalo, Carlos Redroban |
| 2023 | ICCSA | Endogenous vs. Exogenous Leadership in Teamwork: An Socio-Economic Experimental Study. | Carlos Eduardo Jijena Michel, Natalie Olmos Paredes, Marcelo Len, Paulina Tapia, Fernando Calle |
| 2022 | ICCSA | A Predictive Model for the Detection of Clients Suspicious Behavior. | Marcelo Len, Fidel Shagay, Claudia Rivas, Fabricio Echeverria |
| 2020 | ICCSA | Evolution and Progress of Women's Participation in the Ecuadorian Policy Period 2009-2019. | Marcelo Len, Wladimir Sosa, Anglica Guamn, Rodrigo Rivera, Mireya Serrano |
| 2019 | ICCSA | Machine Learning Approach for Reliability Assessment of Open Source Software. | Ranjan Kumar Behera, Santanu Kumar Rath, Sanjay Misra, Marcelo Len, Adewole Adewumi |
| 2019 | ICCSA | From de Geographic Model to Territorial Planning of Santa Elena, Ecuador. | Marcelo Len |
| 2018 | ICCSA | Characterisation of Intelligent Public Spaces and Technologies Applied for the Recreation of Ecuadorian Emigrants. | Yovany Salazar Estrada, Marcelo Len, Ldice Haz, Rosa Iniguez-Apolo, Jimmy Sornoza Moreira, Christian Roberto Antn-Cedeo |
| 2018 | ICCSA | Water Treatment Monitoring System at San Jose de Chaltura, Imbabura - Ecuador. | Marcelo Len, Maritza Ruiz, Ldice Haz, Robert Montalvan, Viviana Pinos Medrano, Silvia Medina Anchundia |
| 2018 | WorldCIST | Analysis of the Water Quality of the Monjas River: Monitoring and Control System. | Marcelo Len, Maritza Ruiz, Teresa Guarda, Robert Montalvan, Len Arguello, Ana Tapia |