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Username: DomeBase
Date/Time: Tue, September 4, 2001 at 11:24 PM GMT
Browser: Microsoft Internet Explorer V6.0 using Windows NT 5.0
Subject: Percentage of Problem Registrations


        "Though InternetChallenge has 1900 suspicous names listed there are about 50,000 Sunrise registrations. So the Afilias estimate of less than 10% fraud does appear to be right"

The InternetChallenge is useful for identifying bogus names, but it less useful for estimating the overall percentage of bogus names.  People found those names by stumblinhg across them through entering names in the WHOIS.  In order to view the number of names on the InternetChallenge as a percentage of the total 50,000... you would need a huge number people typing in millions (billions?) of possible letter combinations... and reporting the bogus names they find.

If you want to estimate the percentage of observations within a population with some characteristic, a better approach is to sample the population randomly (or close to randomly), and then calculating the percentage of observations with that characteristic.  I did this and found roughly 50% registrations with apparent inconsistencies with the Sunrise rules.  I then conducted a manual review and reduced this to 15-25% by giving plausible registrations the benefit of the doubt.



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