Google Inc. appears to be doing reasonably well protecting advertisers from scam artists preying upon the Internet's largest marketing network, but it remains unclear how much the system is being bilked under a ruse known as click fraud, according to an independent report filed in court Friday.
Alexander Tuzhilin, a professor of information systems at New York University, compiled the 47-page analysis of Google's fraud-fighting defenses as part of a proposed $90 million class-action settlement that will be considered for final approval in a two-day hearing scheduled to begin Monday in an Arkansas state court............
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