PageRank in the Past
As mentioned above, during their university research project, Brin and Page tried to invent a system to estimate the authority of web pages. They decided to build this system on links, which act as votes of confidence in a page. According to the logic of the mechanism, the more external resources link to a page, the more valuable its information is for users. PageRank (a score from 0 to 10 calculated based on the number and quality of incoming links) shows the relative authority of pages on the Internet.
Let's take a look at how PageRank works.
Each link from one page (A) to another page (B) casts what is called spain mobile database a vote, the weight of which depends on the collective weight of all the pages that link to page A. We cannot know their weights before calculating them, so the process is cyclical.
It takes into account the citations (links) of the page, the dampening factor, and normalizes the number of links on the page.
Here is the formula from their first research paper:
The original PageRank mathematical formula
Where A, B, C , and D are certain pages , L is the number of links each page sends out , and N is the total number of pages in the collection (i.e., on the Internet).