Which NLP (Natural Language Processing) innovation first allowed retailers to accurately detect sarcasm in customer reviews?

In the evolving world of retail, language technologies have transformed how customers interact with brands. From multilingual customer service to sophisticated language processing in feedback analysis, linguistics plays a crucial role in modern retail strategy. This poll tests your knowledge about a groundbreaking linguistic innovation that changed how retailers understand customer sentiment.

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BERT (Bidirectional Encoder Representations from Transformers)
Word2Vec embedding models
RNN (Recurrent Neural Network) sequence labeling
GloVe (Global Vectors for Word Representation)