Which mathematical innovation revolutionized online product recommendations and was first implemented at scale by Amazon in the late 1990s?

Mathematics plays a crucial role in modern retail technology. From optimization algorithms that determine product placement to predictive analytics that forecast consumer behavior, mathematical principles drive innovation in e-commerce. This poll tests your knowledge about a groundbreaking retail technology that fundamentally changed how mathematical algorithms are used in online shopping experiences.

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Collaborative filtering algorithms that identify patterns between user preferences and product characteristics
Bayesian probability analysis for inventory management
Monte Carlo simulations for price optimization
Neural networks for visual product search