Which technological advancement revolutionized retail sentiment analysis by enabling detection of sarcasm and context-dependent emotions in customer reviews?

In the evolving landscape of retail analytics, sentiment analysis technology has transformed how brands understand customer emotions. These sophisticated AI systems can detect subtle cues in customer feedback that humans might miss. As retailers compete to understand shopper psychology better, which breakthrough technology marked a significant turning point in retail sentiment analysis capabilities? Test your knowledge of how retailers are using AI to read between the lines of customer emotions.

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Bidirectional Encoder Representations from Transformers (BERT)
Recurrent Neural Networks (RNN)
Naive Bayes Classification
Word2Vec Embedding