1. Federated learning: Collaborative data
- Proposed by: GMV, Spain

- Coordinators: Pablo González, Antón Makarov, Alexander Benítez Buenache, and Maider Fernández Egido, GMV
- Assistants: Claudio J. Salaroli and Adán Rodríguez Martínez
- Exposition of the problem:Pablo González, GMV
- Report: Problem 1
2. Fighting the pandemic: Rapid detection of SarsCov-2
- Proposed by: University of Leicester, United Kingdom

- Coordinator: Ivan Tyukin, University of Leicester, UK
- Assistants: Pablo Eleazar Merino Alonso and Ismael Ahrazem Dfuf
- Exposition of the problem: Ivan Tyukin, UK
- Report: Problem 2
3. Identifying people from images of their faces
- Proposed by: Management Solutions, Spain

- Coordinator: Carlos Alonso, MS
- Assistants: Javier Rodríguez Cuadrado and Fabian Castiblanco
- Exposition of the problem: Manuel Angel Guzman Caba, MS
- Report: Problem 3
4. Noise-induced excitability and associative memory in neuron-astrocyte networks
- Proposed by: University College London, UK

- Coordinator: Alexey Zaikin, University Coolege London, UK; Susanna Gordleeva, Nizhny Novgorod University, Russia
- Assistant: Jorge Daniel Mello Román
- Exposition of the problem: Alexey Zaikin, UK
- Report: Problem 4