Which e-commerce platform was the first to implement a patented 'collaborative filtering' recommendation algorithm that revolutionized personalized product suggestions in scientific retail?

The intersection of science and retail has transformed how we shop online. E-commerce platforms have evolved dramatically over the decades, incorporating advanced algorithms, machine learning, and data science to create personalized shopping experiences. Test your knowledge about the scientific innovations behind major e-commerce platforms that changed the retail landscape forever.

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Amazon with its ItemCF algorithm (1998)
eBay with its BidMatcher system (1997)
Alibaba with its TasteGraph technology (2000)
Rakuten with its CustomerDNA framework (1999)