shapiq.tree.InterventionalGame¶

class shapiq.tree.InterventionalGame(model, reference_data, target_instance, class_index=None)[source]¶

Bases: Game

A cooperative game for interventional tree-based model explanations.

Initialize the InterventionalGame.

Parameters:

model (object) – The tree-based model to explain.
reference_data (ndarray) – Background dataset used as reference.
target_instance (ndarray) – The instance to explain.
class_index (int | None) – Class index for classification models. Defaults to None.

value_function(coalitions)[source]¶

Compute the value function for the given coalitions.

Parameters:: coalitions (ndarray) – Boolean array of shape (n_coalitions, n_players).
Return type:: ndarray
Returns:: Array of values for each coalition.