Which machine learning application was FIRST widely adopted by major online retailers that revolutionized e-commerce?

Machine learning is transforming how retailers understand and serve their customers. From inventory management to personalized recommendations, AI technologies are becoming essential tools in the retail industry. This poll tests your knowledge about cutting-edge applications of machine learning in retail. Are you up-to-date with how data science is reshaping shopping experiences?

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Recommendation engines that suggest products based on browsing history
Facial recognition systems for in-store customer identification
Dynamic pricing algorithms that adjust prices in real-time
Computer vision systems for automated checkout experiences