Which mathematical technique revolutionized e-commerce recommendation systems in the early 2000s, enabling personalized product suggestions at scale?

The intersection of mathematics and retail analytics has transformed how businesses make decisions. Advanced mathematical models now drive everything from inventory management to customer segmentation. This poll tests your knowledge about a significant mathematical innovation that revolutionized e-commerce recommendation systems and continues to impact retail data analytics today. Understanding these mathematical foundations is crucial for modern retail professionals navigating the data-driven landscape.

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Singular Value Decomposition (SVD) matrix factorization
Bayesian Belief Networks
Convolutional Neural Networks
Monte Carlo Markov Chains