Which pioneering recommendation algorithm, developed in the 1990s, became the foundation for Amazon's product recommendation system and revolutionized online retail?

The invention of sophisticated recommendation algorithms revolutionized how we shop online. These systems analyze our browsing history, purchases, and preferences to suggest products we might like. Behind this technology are brilliant minds who pioneered algorithms that now power billions of dollars in retail sales. Test your knowledge about the origins of this transformative retail technology that changed how we discover products forever.

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Item-to-Item Collaborative Filtering
Neural Network Preference Prediction
Bayesian Customer Clustering
Markov Decision Process Recommendations