Fig. 4

Inconsistencies between network topology and data. A species, gene, or protein, is represented as a node. The nodes’ colours represent the node’s sign when comparing two conditions. They are: blue, “0”, or no-change; red, “−”, or decrease; and green, “+”, or increase. The octagonal nodes represent the artificial influences added by MajS to restore conistency. For a an artificial influence, noted Art1 is added on node B with the sign “+” to balance with the sign of B’s successor node A. For b, two artificial influences, Art1 and Art2, are added to respect the majoritarian sign-consistency rule. Same logic for c