Which machine learning application revolutionized grocery shopping by enabling Amazon's 'Just Walk Out' technology in Amazon Fresh stores?

The food industry is rapidly evolving with technology transforming how consumers discover, purchase, and experience culinary products. Machine learning algorithms are now being deployed by major food retailers to personalize shopping experiences and predict consumer preferences. This trivia question tests your knowledge about how AI and machine learning are reshaping the landscape of food retail and changing the way we interact with food products.

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Computer vision and deep learning algorithms that automatically detect when products are taken from or returned to shelves
Natural language processing systems that respond to verbal shopping lists provided by customers
Recommendation engines that suggest recipes based on items already in a customer's cart
Predictive analytics that forecast when customers will run out of staple ingredients at home