13. The system of claim 9 , where, when assigning the ranking score, the one or more processors are further to iteratively assign the ranking score until convergence.
9. A system comprising: one or more processors to: identify a plurality of documents, a first document, of the identified plurality of documents, being linked to by a second document, of the identified plurality of documents, the second document and a third document, of the identified plurality of documents, being in a set of affiliated documents; calculate a first value for each document in the set of affiliated documents, calculating the first value for each document in the set of affiliated documents being based on: a ranking score of the document, and a number of outbound links from the document; determine that the first value calculated for the third document is a maximum of the first values calculated for each document in the set of affiliated documents; assign a ranking score to the first document based the first value calculated for the third document; and store the ranking score.