Which NLP innovation was first successfully implemented at scale in retail customer service, fundamentally changing how consumers interact with brands online?

Natural Language Processing (NLP) has revolutionized how customers interact with retail platforms. From voice assistants to chatbots, linguistic technology has transformed the shopping experience. But how well do you know the history and current state of linguistic technology in retail? Test your knowledge about the intersection of language technology and consumer behavior with this challenging trivia question!

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Rule-based chatbots with predefined responses (1990s)
BERT-powered semantic search for product discovery (2019)
Machine learning-based sentiment analysis for customer reviews (2010s)
GPT-based conversational shopping assistants (2022)