Which retail analytics technology was first implemented by Amazon in its Amazon Go stores, allowing for a completely checkout-free shopping experience?

In today's competitive retail landscape, data analytics has become the backbone of successful customer experiences and business strategies. Major retailers now collect and analyze vast amounts of customer data to make strategic decisions about everything from product placement to personalized marketing. This trivia question tests your knowledge about an innovative retail analytics technology that transformed how stores understand customer behavior.

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Just Walk Out technology (computer vision and sensor fusion)
RFID smart shelves
Bluetooth beacon tracking
Facial recognition payment systems