Which mathematical technique, first applied to retail in 2004, revolutionized product recommendation systems and is now used by over 85% of major online retailers?

Modern retail has been transformed by mathematical models and algorithms. Advanced analytics now drive everything from inventory management to personalized marketing. This poll tests your knowledge about a groundbreaking mathematical innovation that revolutionized how retailers understand consumer behavior patterns and make data-driven decisions.

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Collaborative Filtering Matrix Factorization
Bayesian Probability Networks
Markov Decision Processes
Fourier Transform Analysis