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webmachine-learningpagerankunsupervised-learning

The Google PageRank Algorithm

I am going through the PageRank algorithm. In the book Elements of Statistical Learning in chapter Unsupervised Learning the follwing statement is given:

The PageRank algorithm considers a webpage to be important if many other webpages point to it.

I understand the algorithm very well. But I don't understand how does a webpage points to another webpage?

For example:

Suppose I created a blog A (www.iam.com) and you created a blog B (www.youare.com) then how does blog A points to blog B or vice versa?

Solution

  • With hyperlinks. The C coefficient measures the probability of a user clicking a link instead of writing an URL, so if in a page A the user can click a link to page B, page B gets a little more “important” in the algorithm.