Bipartite Cores (IMAGE)

Carnegie Mellon University

Bipartite Cores

Caption

In this graph of online auction transactions, the darkened oval represents a known perpetrator of fraud, while the other two ovals in the top row are suspected fraudsters. The bottom row of this graph, called a bipartite core, shows apparent accomplices who artificially boosted the fraudsters' reputation scores.

Credit

Carnegie Mellon University

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