Which recommendation algorithm innovation, introduced by Amazon in 1998, revolutionized e-commerce by analyzing purchase patterns between customers rather than just product similarities?

In the ever-evolving world of retail, recommendation systems have transformed how businesses connect products with consumers. These sophisticated algorithms analyze customer behavior, purchase history, and browsing patterns to suggest products that customers are likely to want. How well do you understand the technological evolution behind today's personalized shopping experiences? Test your knowledge about a pivotal moment in recommendation system history!

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Collaborative Filtering
Neural Network Personalization
Contextual Bandit Learning
Demographic Segmentation Analysis