Table A1 Action space for agents to... | Emerald Publishing

Table A1

Action space for agents to decide in the tree growth game and its simplified binary version

Action no.	Pruning type $K$	Range $M_{k}$	Meaning of the parameter	Range (in binary version) $M_{k}$	Meaning of the parameter (in the binary version)
0	Thinning	(float) [0, 0.05]	Branches with a distance to any other branch below this number in meters will be cut	(float) [0, 0.5)	The rate of solid voxels to be deleted
1	Raising	(float) [0, 10]	Branches within this height in meters from the crown start will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the bottom
2	Reduction east	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the east, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the east
3	Reduction south	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the south, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the south
4	Reduction west	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the west, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the west
5	Reduction north	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the north, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the north
6	Reduction top	(float) [0, 5]	Branches within this distance in meters below the crown’s top will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the top
7	Topping	(integer) [0, 5]	Cylinders that within this number from an end of a branch will be cut	(float) (0, 5]	Delete voxels whose distance from their center to the mean center of all solid voxels is among the furthest ones within this range in meters
8	No action (only with a generic growth)	–	Do not conduct any manual pruning	–	Do not conduct any manual pruning

Action no.	Pruning type $K$	Range $M_{k}$	Meaning of the parameter	Range (in binary version) $M_{k}$	Meaning of the parameter (in the binary version)
0	Thinning	(float) [0, 0.05]	Branches with a distance to any other branch below this number in meters will be cut	(float) [0, 0.5)	The rate of solid voxels to be deleted
1	Raising	(float) [0, 10]	Branches within this height in meters from the crown start will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the bottom
2	Reduction east	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the east, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the east
3	Reduction south	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the south, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the south
4	Reduction west	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the west, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the west
5	Reduction north	(float) [0, 10]	Branches within this distance, meters from the crown’s outreach from the north, will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the north
6	Reduction top	(float) [0, 5]	Branches within this distance in meters below the crown’s top will be cut	(Integer) [1, 10]	The number of solid voxel layers to be deleted from the top
7	Topping	(integer) [0, 5]	Cylinders that within this number from an end of a branch will be cut	(float) (0, 5]	Delete voxels whose distance from their center to the mean center of all solid voxels is among the furthest ones within this range in meters
8	No action (only with a generic growth)	–	Do not conduct any manual pruning	–	Do not conduct any manual pruning

Note(s): The parameters have different meanings in the binary version of the game

Source(s): Authors’ own work