Which e-commerce giant famously developed the 'item-to-item collaborative filtering' algorithm that revolutionized product recommendation systems using mathematical matrix operations?

The intersection of mathematics and marketing has created powerful tools for retail and e-commerce. From recommendation algorithms to logistics optimization, mathematical principles drive modern retail success. This trivia question explores how a major technology company leveraged mathematical innovation to revolutionize product recommendations and create a competitive advantage in the marketplace.

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Amazon
eBay
Alibaba
Walmart