Larry and Sergey's CS349 (1998)
infolab.stanford.edu
infolab.stanford.edu
edit: I should've just, ahem, Googled her first. https://www.linkedin.com/in/diane-tang-2a2477
B: a profile with 6 also viewed google employee
P(A|B) = P(B|A) * P(A) / P(B)
http://www.vldb.org/conf/1998/p594.pdf
edit: and The Anatomy of a Large-Scale Hypertextual Web Search Engine