Figure 1

Examples of movement tracks during (a) the football match Ajax–Feyenoord, and (b) the Armin van Buuren dance event. (c, d) The same movement tracks as 1D time series of projections on the x-axis. Colors represent different individuals. Grey areas between dotted vertical lines indicate start and end times of (c) the football match, and (d) the DJ show. This figure is adopted from our previous work26.