Fig. 8.

Visualization of an event from the speed time series. The event comprises a sequence of consecutive actions in which a player transitions through various speed zones before returning to a resting state. In this example, the event commences in the 25th second of the game and ends at 60th. It is composed of 12 actions as illustrated by the broken lines, starting with a 'standing' action, then the player performs some actions at higher speeds, and ends when he gets back to a resting state (in this case 'walking').