Link Analysis PageRank Simple flow"model The web in 1839 y/2 Yahoo y=y/2+a/2 a=y 2+m a/2 y m=a/2 m Amazon Soft a/2 a mLink Analysis 6 Simple “flow” model The web in 1839 Yahoo Amazon M’soft y a m y/2 y/2 a/2 a/2 m y = y /2 + a /2 a = y /2 + m m = a /2 PageRank