Table 4. Kendall’s tau between ranking scores provided by different methods and the real spreading abilities.
Network | CR | LR | PR | DR |
DeliciousTop-20 | 0.4632 | 0.1263 | 0.0737 | −0.0632 |
DeliciousTop-50 | 0.2784 | 0.0482 | −0.0596 | −0.1004 |
SM Top-20 | 0.2474 | 0.2368 | 0.2263 | 0.1421 |
SM Top-50 | 0.2620 | 0.2922 | 0.2253 | −0.0580 |
Here we focus on the ranks of the top- ( = 20 and 50) nodes with maximal out-degrees. We abbreviate ClusterRank, LeaderRank, PageRank and Out-degree centrality by CR, LR, PR and DR, respectively.