  The purpose of the research is to find a centrality measure that can be used
in place of PageRank and to find out the conditions where we can use it in
place of PageRank. After analysis and comparison of graphs with a large number
of nodes using Spearman's Rank Coefficient Correlation, the conclusion is
evident that Eigenvector can be safely used in place of PageRank in directed
networks to improve the performance in terms of the time complexity.
