Post-to-Post Network Graph

Mar 26, 2014 at 2:00 AM
In a post-to-post graph of a facebook fan page, vertices are represented by posts and an edge exists between a pair of posts if a user likes or comments on both of them. (i.e. If User 1 likes PostA and PostB, then PostA and PostB will have an edge between them. ) If this is the case, is this an undirected network?
Apr 2, 2014 at 8:49 AM

in this case this is an undirected network.