2. The method of claim 1 , further comprising assigning weights to “me” edges, wherein a weight assigned to a “me” edge from a first node to a second node is determined from a reputation value assigned to the first node and a measure of textual similarity between a user name associated with the identity represented by the first node and a user name associated with the identity represented by the second node.
4. The method of claim 2 , wherein the measure of textual similarity is computed by applying a comparison function.