get_viewed_item_ids

rectools.models.utils.get_viewed_item_ids(user_items: csr_matrix, user_id: int) → ndarray

Return indices of items that user has interacted with.

Parameters

• user_items (csr_matrix) – Matrix of interactions.

• user_id (int) – Internal user id.

Returns

Internal item indices that user has interacted with.

Return type

np.ndarray