Which e-commerce platform was the first to implement the 'matrix factorization' technique for their recommendation system, leading to a documented 10% increase in sales through more accurate product suggestions?

In the intersection of mathematics and retail, certain e-commerce platforms have revolutionized how mathematical algorithms drive business success. These platforms have employed complex mathematical models for everything from inventory optimization to personalized recommendations. This trivia tests your knowledge about a groundbreaking mathematical approach that transformed online retail analytics and became an industry standard.

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Amazon with their A9 algorithm
Alibaba's Graph Neural Network system
eBay's Cassini search architecture
Shopify's Recommendation Engine 2.0