theodp writes "Defending its decision to concoct recommendations to steer customers to buy items at Amazon's new Apparel Store, a spokeswoman said Amazon "felt it would be evident to people that since the store was so new, we wouldn't have the transaction history to create database similarities." But in this just-published patent applicaton, Amazon earlier told the USPTO it's able to use product viewing histories to determine the similarity or relatedness between products for which little or no purchase history data exists. So which claim should you believe?"
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