Table 7.

Detailed class description for every class included in the dataset. The dataset is multi-tier labeled with 4 different layers (I) Coarse, (II) Locomotion, (III) Basketball, and (IV) In/Out. The coarse layer is not listed, since it is meant to indicate to which session an activity belongs. Relevant classes are classes 2–13. However, the classes in and out were not used in our validation.

All Layers
1. not_labeled	All samples in between sessions, or if it was not possible to recognize the activity in the video (e.g., due to occlusions).
In/Out
2. In	Indicates that the subject is currently actively participating in the game.	3. Out	Indicates that the subject is currently not actively partici- pating in the game. This class mostly included sitting or walking.
Locomotion		Basketball
4. sitting	Sitting on the floor or the reserve bench.	9. dribbling	Dribbling while performing one of the following locomotion activities: (3) standing, (4) walking, (5) running.
5. standing	Standing still.	10. shot	A basketball shot with and without a jump. Included are penalty shots, 2-point and 3-point shots.
6. walking	Walking at the average walking speed of a human (4–5 km/h).	11. layup	A layup is a complex class that contains: grabbing the ball, making 2 steps, jumping, and throwing the ball in the basket.
7. running	Running is a metaclass for all velocities of running. Therefore, it contains jogging (5–6 km/h), fast running (6 km/h < 10 km/h) and sprinting (>10 km/h).	12. pass	Passing the ball. Included are chest passes, bounce passes, overhead passes, one-handed push passes and so-called baseball passes.
8. jumping	A jump typically is part of a more complex activity, such as (10), (11), or (13).	13. rebound	The player jumps and catches the ball mid-air with one or two hands.