US Patent 7792060 Information analysis apparatus and computer readable medium

An information analysis apparatus includes: a storage that stores data values while respectively correlating the data values with plural nodes; a first setting unit that, for the nodes, sets a first virtual link that is directed oppositely to a predetermined directed link; a second setting unit that adds a virtual nodes to the nodes, and that sets a second virtual link which is bidirectional between the added virtual node and each of the nodes; and a updating unit that updates data values respectively correlated with the nodes, on the basis of respective weights of predetermined links between the nodes, the first virtual link, and the second virtual link.