Sergio Cabrero Barros is the head of the Interactive Media Technology research line at Vicomtech, an applied research organization in the Basque Country. His work focuses on advancing technologies in extended reality (XR), artificial intelligence, and interactive media to create human-centric, immersive, and intelligent experiences. He has contributed to projects spanning diverse sectors — from music and gastronomy to automotive and security — applying research outcomes to real-world industrial and creative domains. Before joining Vicomtech, Sergio worked as a researcher at IBM Research, CWI, and as lecturer the University of Oviedo, where he earned a degree in Telecommunications Engineering and a PhD in Computer Science.

Tanja Kojić is a Senior Research Scientist at the Quality and Usability Lab at Technische Universität Berlin, Germany. She received her doctoral degree in computer science (Dr.-Ing., summa cum laude) for her dissertation on user experience in virtual reality serious games. Her research lies at the intersection of human-computer interaction and user experience, with a focus on immersive media, particularly virtual and augmented reality, and multimodal interaction. She investigates how interaction design, system characteristics, and individual user factors shape perceived quality and user experience. Her work combines controlled user studies with standardised subjective assessment methods. She is also an author of ITU-T Recommendation P.812 on the subjective evaluation of interactive virtual reality. Her overarching aim is to derive empirically grounded principles for the design and evaluation of human-centred interactive systems.