Which mathematical technique, first widely adopted by Amazon in the early 2000s, revolutionized retail recommendation systems by identifying patterns in customer purchase history?

In the world of retail, advanced mathematics and analytics have transformed how businesses understand customer behavior and optimize operations. Complex algorithms now power recommendation systems, demand forecasting, and inventory management. This poll tests your knowledge about a significant mathematical innovation that revolutionized retail analytics and how major retailers implemented it to gain competitive advantages in the market.

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Collaborative filtering with matrix factorization
Bayesian inference networks
Support vector machines for market basket analysis
Monte Carlo simulations for customer path modeling