In a TED speech on 8:40 the mathematician said that:
This algorithm uses the laws of mathematical randomness to determine automatically the most relevant web pages, in the same way as we used randomness in the Galton Board experiment.
I want to bridge the gap between these two kinds of randomness in my mind. Or how can I interpret TextRank or PageRank in a statistical way? Could anyone please help?
I have read this tutorial: TextRank: Bringing order into texts and have a basic understanding of the TextRank algorithm. So far as I know TextRank can be viewed as a Markov chain, but can we see what happens in Galton Board experiment also a Markov chain? Or how can we represent what happen in the Galton Board experiment and the experiment in the above picture in mathematical language?