7. The system of claim 1 , wherein the determining further comprises: iteratively selecting a set of nodes included in the graph; evaluating, for each iteration, a raw scoring function on the selected set; and updating an estimate of a raw score distribution for each set included in the plurality of sets using results of the evaluation to obtain a distribution of the raw scores.
7. The system of claim 1 , wherein the determining further comprises: iteratively selecting a set of nodes included in the graph; evaluating, for each iteration, a raw scoring function on the selected set; and updating an estimate of a raw score distribution for each set included in the plurality of sets using results of the evaluation to obtain a distribution of the raw scores. 8. The system of claim 7 , wherein the raw scoring function is linear, and wherein each selected set of nodes has a single node.