Title: Reputation systems II

                       Yury Liftshits
   Center for the Mathematics of Information
      California Institute of Technology

ABSTRACT: Reputation systems II

In the second lecture we study three
recent research topics in reputation systems:
 - Sybill attack: how resistant are trust ranking
   to malicious groups of peers that are supporting
   each other? Both positive and negative results
   will be presented.
 - Reputations for websites and mail senders that
   help for spam protection.
 - Ranking in social media: blog ranks, news ranks.

The lecture will be concluded by a list of
open problems and directions for further research.

Slides and other materials: http://yury.name/reputation.html