Which mathematical technique revolutionized Amazon's recommendation engine in 2016, reportedly increasing their cross-selling revenue by 35%?

In the world of retail, mathematics plays a crucial role in optimizing operations and driving growth. From inventory management algorithms to predictive analytics, mathematical models power modern retail strategies. This trivia question focuses on how major retailers leverage mathematical concepts to gain competitive advantages in the marketplace. Test your knowledge of the intersection between mathematical modeling and retail big data applications!

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Tensor factorization algorithms for multi-dimensional preference modeling
Monte Carlo simulations for purchase probability mapping
Bayesian network analysis for customer journey prediction
Markov chain models for sequential purchasing behavior