Which company pioneered the first widely successful AI-powered recommendation engine in e-commerce that fundamentally changed how retailers approach personalization?

The integration of artificial intelligence in retail has transformed how businesses understand customer behavior and optimize operations. From inventory management to personalized recommendations, AI has become a cornerstone of modern retail strategy. But do you know which company first successfully implemented AI-powered recommendation engines at scale, revolutionizing the e-commerce landscape and setting the standard for personalized shopping experiences worldwide?

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Amazon with its item-to-item collaborative filtering algorithm (1998)
Walmart with its customer purchase pattern recognition system (1995)
eBay with its BiddingBuddy AI assistant (2001)
Netflix with its Cinematch algorithm (2000)