Which NLP innovation significantly improved retail customer service by allowing systems to better understand customer intent rather than just keywords?

Natural Language Processing (NLP) has revolutionized how retailers interact with customers, particularly in automated customer service. This trivia question explores a significant innovation in linguistic technology that has transformed retail customer service experiences. Test your knowledge about the intersection of linguistic technology and retail customer service innovations!

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BERT (Bidirectional Encoder Representations from Transformers)
Basic Word2Vec Embeddings
Simple Rule-Based Grammar Systems
TF-IDF (Term Frequency-Inverse Document Frequency) Analysis