Which retailer was the first to implement AI-powered product recommendations at scale, revolutionizing personalized shopping experiences?

Test your knowledge about cutting-edge AI applications in retail customer engagement! Many retailers are revolutionizing how they interact with customers through machine learning and AI technologies. Some innovations have dramatically changed the retail landscape, creating new standards for personalization and customer experience. Can you identify which pioneering implementation came first and set the stage for others to follow?

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Amazon with its item-to-item collaborative filtering algorithm
Netflix with its content recommendation engine
Walmart with its customer behavior prediction system
Alibaba with its AI fashion assistant