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Technology Stocks : The *NEW* Frank Coluccio Technology Forum
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To: Frank A. Coluccio who wrote (18157)12/5/2006 8:30:05 PM
From: axial  Read Replies (1) of 46821
 
Computer scientists uncover online auction fraud

"...But an unnatural pattern becomes evident when the transactions are plotted as a graph, with each user represented as a node, or dot, and transactions between individual users represented by lines connecting the nodes.

In the resulting graph, transactions between accomplices and fraudsters create a pattern that sticks out like "a guiding light," Chau said. Graph theorists call this pattern a "bipartite core" — members of one group have lots of transactions with members of a second group, but don't have transactions with members of their own group. One group, the accomplices, also deals with honest eBay users, but most of the transactions are with fraudster groups..."

physorg.com
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