39. The method of claim 38 , further comprising determining label weights for a portion of the nodes, the determination comprising, for each node of the portion, adding the node's label weight to a label weight of a neighboring node's label, for each neighboring node.
39. The method of claim 38 , further comprising determining label weights for a portion of the nodes, the determination comprising, for each node of the portion, adding the node's label weight to a label weight of a neighboring node's label, for each neighboring node. 40. The method of claim 39 , wherein the label weight of the neighboring node's label is at least partially based on the relationship relating the node to the node's neighbors.