5. The method of claim 1 , comprising: updating the pre-aggregated dataset using data newly added to the dataset; determining an amount of resources required for storing and maintaining the pre-aggregated dataset based on resources used for updating the pre-aggregated dataset and storing the updated pre-aggregated dataset; and decreasing the benefit score for the pre-aggregated dataset based on the amount of resources required for storing and maintaining the pre-aggregated dataset.
6. The method of claim 5 , comprising: determining that the decreased benefit score is below the threshold value; and discarding the pre-aggregated dataset in response to determining that the decreased benefit score is below the threshold value.