PageRank algorithm and its variations: A Survey report

A Survey of various Web Page Ranking Algorithms

“…"To develop the enabling technologies for a single, integrated and universal digital library" was the goal of SDLP and was funded through the National Science Foundation among other federal agencies. [2] In search for a dissertation theme, Page considered among other things exploring the mathematical properties of the World Wide Web, understanding its link structure as a huge graph. Terry Winograd who was his supervisor encouraged him to pick this idea (which Page later recalled as "the best advice I ever got") and Page focused on the problem of finding out which web pages link to a given page, considering the number and nature of such backlinks to be valuable information about that page [http://en.wikipedia.org/wiki/Page Rank].…”

Google pagerank algorithm: using efficient damping factor

“…Finally, determining the twenty-five most popular pages. Much more of research on damping factor value d is motivated by the idea which calculates the value for webpages and most of researches that have done before on PageRank used the value d=0.85 because it is default value by Google's founder Sergey Brin and Larry Page [9].…”