Which mathematical technique did Amazon pioneer in retail that revolutionized product recommendations and is estimated to drive 35% of their revenue?

Ever wonder how mathematics powers the world's largest retailers? Advanced algorithms and statistical models drive everything from inventory management to customer recommendations. This poll explores how one major retail giant leverages mathematical modeling to optimize its business operations in a way that revolutionized the industry.

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Collaborative filtering algorithms using matrix factorization
Bayesian probability networks for inventory forecasting
Linear programming for supply chain optimization
Monte Carlo simulations for pricing strategy