Which mathematical approach has revolutionized product recommendation systems in mathematics-focused retail stores like specialized bookstores and educational supply shops?

The retail industry is increasingly leveraging advanced mathematics and algorithms to transform customer experiences and optimize operations. From inventory management to personalized recommendations, mathematical models are driving retail innovation. This poll tests your knowledge about how mathematical concepts are being applied in modern retail digital transformation.

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Singular Value Decomposition (SVD) for collaborative filtering
Simple averaging of customer ratings
Euclidean distance formulas for product similarity
Random Forest algorithms for demographic matching