Figure 9From: Link creation and information spreading over social and communication ties in an interest-based online social networkEvolution of the average similarity of user profiles. Similarity, as measured by the numbers of common books or groups, and by the cosine similarity, is shown for links created between t and t+1, for t=2 (black circles), 3 (red squares), 4 (green diamonds), 5 (blue triangles), normalized by the average similarity in the first snapshot. Values are quite stationary before t 0 , and clear jumps are observed between t and t+1.Back to article page