I think you may be interested in the "h-index" and related metrics.
http://www.cs.ucla.edu/~palsberg/h-number.html
http://www.cs.ucla.edu/~palsberg/h-number.html
PageRank is recursive metric in graph. In above case, if above 10 professors don't have any other links pointing to them, they don't get ranked higher. PageRank was designed to eliminate scenarios like above.
It's amusing that Google Scholar doesn't use PageRank prominently instead of these weaker metrics.
"Manipulating Google Scholar Citations and Google Scholar Metrics: simple, easy and tempting" by Delgado Lopez-Cozar, et al.
http://arxiv.org/abs/1212.0638
[edit: grammar]
https://gist.github.com/shazeline/d9881d06be31a59a93d3
It's a BFS for Google Scholar seeded with Herbert Simon.