17. The computer of claim 16 , wherein the program further includes instructions for, prior to solving a first iteration of the reputation function: excluding from the reputation function nodes having no outlinks; and excluding from the reputation function nodes having no positively valued outlinks.
17. The computer of claim 16 , wherein the program further includes instructions for, prior to solving a first iteration of the reputation function: excluding from the reputation function nodes having no outlinks; and excluding from the reputation function nodes having no positively valued outlinks. 18. The computer of claim 17 , wherein the program further includes instructions for, prior to solving the first iteration of the reputation function but subsequent to excluding from the reputation function nodes having no outlinks and excluding from the reputation function nodes having no positively valued outlinks: normalizing respective outlinks for a node to sum to a predefined value.