Which company pioneered the first widely successful product recommendation algorithm in retail, launching it in 1998 and setting the foundation for modern personalization technology?

The world of retail has been transformed by personalization algorithms that tailor shopping experiences to individual customers. These sophisticated systems analyze purchase history, browsing behavior, and demographic data to create recommendations that feel uniquely crafted for each shopper. But do you know when this retail revolution truly began? Test your knowledge about the origins of modern personalization technology that has fundamentally changed how we shop and how retailers understand their customers.

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Amazon with its item-to-item collaborative filtering system
Netflix with its Cinematch preference algorithm
eBay with its BiddingBuddy recommendation engine
Walmart with its CustomerConnect personalization system