Which e-commerce giant pioneered the item-to-item collaborative filtering recommendation algorithm in the late 1990s that transformed online retail?

Before AI and machine learning dominated the retail landscape, recommendation systems were already shaping how we shop. These early systems laid the groundwork for the sophisticated recommendation engines we encounter daily. Test your knowledge about the pioneering company that revolutionized product recommendations and forever changed how online retailers suggest items to customers.

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Amazon
eBay
Alibaba
Netflix