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"New concerns about the trustworthiness of online ratings."
There is an interesting, short article by Michael Moyer in the July issue of Scientific American magazine (pg 26).
In the article Mr. Moyer notes that:
According to Eric C. Clemons, a Professor of Operations and Systems Management at the Wharton School of the University of Pennsylvania, online ranking systems that use the so-called crowdsourcing strategy, used by many online retailing outlets like Amazon.com (and hundreds of others), suffer from a number of inherent biases.
Again looking specifically at Amazon, Vassilis Kostakos, a computer scientist at the University of Madiera, found that a small percentage of users accounted for a huge majority of the reviews. (95% of Amazon reviewers have reviewed less than 8 products.)
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It looks like making product purchase decisions based on online product reviews might not be a good methodology.
As always Caveat Emptor. (Buyer Beware) :study:
There is an interesting, short article by Michael Moyer in the July issue of Scientific American magazine (pg 26).
In the article Mr. Moyer notes that:
According to Eric C. Clemons, a Professor of Operations and Systems Management at the Wharton School of the University of Pennsylvania, online ranking systems that use the so-called crowdsourcing strategy, used by many online retailing outlets like Amazon.com (and hundreds of others), suffer from a number of inherent biases.
Again looking specifically at Amazon, Vassilis Kostakos, a computer scientist at the University of Madiera, found that a small percentage of users accounted for a huge majority of the reviews. (95% of Amazon reviewers have reviewed less than 8 products.)
-----------------------------------------------------------------------
It looks like making product purchase decisions based on online product reviews might not be a good methodology.
As always Caveat Emptor. (Buyer Beware) :study:
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