The EconNet Research Group at CEU Data Stories 2022 exhibition

2022. május 25. 15:42

The CEU Data Stories is an exhibition of research visualizations on social and behavioural topics, coming from both academia and industry. The exhibition is open from 23th May.

We are very pleased to announce that the exhibition also featured the joint work by Erik Braun, András Gyimesi (EconNet Research Group, University of Pécs, Faculty of Business and Economics) and Eszter Kovács (University of Pécs, Faculty of Music and Visual Arts), entitled "Temporal Network of all UEFA Champion League matches", inspired by their previous research.

The visualization displays a multilayer temporal network of the UEFA Champions League (CL), where the nodes are the teams and the edges represent the number of CL matches between them. Data of the pairings were collected from The three temporal layers show three distinct eras: (1) the 90s when initially only champions could qualify, (2) the 2000s when the 32-team group stage format was introduced, and (3) the 2010s when the prize pool started to drastically increase and the Financial Fair Play regulations were introduced. The aim of this project is to capture the evolution of the core-periphery structure. For the international audience, the most well-known teams are those who play more often, so we treated the 20 largest-degree teams as core, while those who qualified only once as periphery teams. The network representation of the temporal dynamics reveals that the group of core teams evolving slowly, with only a few suddenly emerging teams like Manchester City and Paris Saint-Germain in the 2010s in favor of dropping teams like AC Milan. The strongest connections are between core teams that often got paired with each other after completing the group stage, which can lead to some emerging rivalries. Studying these core-core connections is important, as they contribute to the global attractiveness of the tournament. By visualizing the temporal dynamics we can track each team’s route to global fame or fade into obscurity.

Congratulations for the exhibition, we wish you further successful work!