From June 2 to 6, 2025, the University of Library Studies and Information Technologies (ULSIT) in Sofia hosted the ExcellCity Summer School 2025 on the theme “Intelligent Cloud Continuum.” The event was organized within the framework of the ExcellCity project (BG-RRP-2.005-0003), funded by the National Recovery and Resilience Plan, and gathered leading researchers, lecturers, and young scientists from Bulgaria, Spain, and Italy.

The summer school focused on innovative concepts of continuous computing environments, combining cloud technologies, edge computing, and artificial intelligence. The program included lectures and hands-on sessions on topics such as:

  • Digital Twins in Action using Eclipse Ditto and smart campus applications;

  • Cloud-to-Edge Architectures for scalable and adaptive data processing;

  • IoT Agents with a Mission for event-driven smart infrastructures;

  • FogFlow for dynamic cloud-edge computation orchestration;

  • FIWARE solutions for smart cities and industries;

  • Big Data and Microservices with Docker and Hadoop.

Distinguished speakers included experts from the University of Murcia (Spain) – Prof. Antonio Skarmeta, Prof. Miguel Zamora, Assoc. Prof. Juan Sánchez, and Assoc. Prof. Juan Martinez – and from the University of Messina (Italy) – Prof. Massimo Villari, Assoc. Prof. Maria Fazio, and Assoc. Prof. Antonio Celesti.

The program also fostered valuable discussions and networking opportunities, paving the way for future research collaborations. The event contributed to strengthening international cooperation in the field of intelligent cloud and edge technologies.