1. Real-time gesture recognition with new-generation smart materials
- Proposed by: Tangi0 Ltd and University of Leicester, United Kingdom

- Coordinator: Ivan Tyukin, University of Leicester, UK
- Assistant: Carmen García-Miguel
- Exposition of the problem: Ivan Tyukin, UK
- Report: Problem 1
2. Federated Learning: Does everyone play fair?
- Proposed by: GMV, Spain

- Coordinators: Pablo González, Antón Makarov, Alexander Benítez Buenache, and Maider Fernández Egido, GMV
- Assistant: Alberto Almech
- Exposition of the problem: Pablo González, GMV
- Report: Problem 2
3. Machine learning models for sports prediction and betting
- Proposed by: University of Florence, Italy

- Coordinator: Lorenzo Amato, Italy
- Assistant: Mario Freire Torres
- Exposition of the problem: Lorenzo Amato, Italy
- Report: Problem 3
4. A data-driven approach to evaluate the impact of restrictive measures on the incidence of COVID-19 and economic indicators
- Proposed by: Komorebi AI, Spain

- Coordinator: Alberto Torres Barrán, Manuel Navarro García, Victor Gallego Alcalá, David Gordo Gómez, Komorebi AI, Spain; Daniel Precioso, David Gómez-Ullate, UCA, Spain
- Assistants: Kaian Fernandes and Alejandra Wyss
- Exposition of the problem: David Gordo, Komorebi AI
- Report: Problem 4