Which linguistic advancement was a key breakthrough that allowed retail chatbots to move beyond simple keyword recognition to understanding customer intent?

Retail chatbots have revolutionized customer service in e-commerce by providing instant linguistic assistance across multiple platforms. These AI-powered language tools have evolved dramatically in recent years, incorporating sophisticated natural language processing to better understand customer queries. Test your knowledge about the intersection of linguistics and retail chatbot technology with this trivia question!

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Natural Language Processing (NLP) with transformer architecture
Basic Part-of-Speech (POS) tagging
Simple keyword matching algorithms
Phonetic spelling correction