The original method assigns a high PageRank p(d) to a web page d if d is linked by many other web pages with a high PageRank.
this value corresponds to the probability that a web surfer, who either follows a link on a visited web page or randomly chooses a new page, enters d. based on the link graph induced by a set of web pages D, p(d) is computed recursively as: is the PageRank score of a web page d i ∈ D that links to d, and D i is the set of all web pages that d i links to.