Figure 4. The variation of the PageRank for top-rank journals based on different resampling schemes.

In agreement with the result of single link-weight variance analysis, our analysis shows that core structures in article and multinomial resampling are much more similar to each other than in the Poisson resampling. The article resampling is the biggest perturbation, in which the 95% confidence interval for the PageRank is broader than in multinomial or article resampling. Multinomial and article resampling were second and third, respectively.