Which mathematical concept is primarily used by e-commerce giants to power their recommendation engines that suggest products based on previous shopping behavior?

In the rapidly evolving world of e-commerce, mathematical models and algorithms play a crucial role in retail big data analytics. From predictive purchasing patterns to inventory optimization, mathematics forms the foundation of modern retail success. This trivia question explores how a specific mathematical concept revolutionized online retail analytics and transformed customer behavior prediction.

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Collaborative Filtering Algorithms
Differential Calculus
Euclidean Geometry
Binomial Theorem