Which mathematical concept was pivotal in developing Amazon's recommendation algorithm that reportedly generates more than 35% of their revenue?

Advanced mathematics plays a crucial role in modern retail technology advancements. From predictive analytics to inventory optimization, retailers are increasingly relying on sophisticated mathematical algorithms to gain competitive advantages. This trivia question explores how a specific mathematical concept revolutionized a major retail technology application. Test your knowledge of the intersection between mathematics and retail innovation!

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Singular Value Decomposition (SVD)
Bayesian Networks
Markov Decision Processes
Fourier Transforms