Which retail personalization algorithm holds the world record for processing the most customer data points simultaneously to deliver real-time recommendations?

The retail landscape has witnessed extraordinary innovations and achievements that have set world records. Beyond the Guinness World Records for the largest stores or longest shopping sprees, some retail technologies and strategies have made history in ways that transformed how we shop. Test your knowledge about groundbreaking retail technologies and strategies that have earned their place in the record books!

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Amazon's A9 algorithm (processing up to 2.5 billion data points per second)
Alibaba's Taobao Magic Mirror (processing up to 1.8 billion data points per second)
Walmart's Customer DNA system (processing up to 1.2 billion data points per second)
Target's Guest Insights Platform (processing up to 900 million data points per second)