Which NLP innovation revolutionized sentiment analysis in 2018 by enabling more accurate detection of contextual emotional cues in multilingual customer feedback?

Natural Language Processing (NLP) has transformed how businesses understand and engage with customers through digital marketing and sentiment analysis. Modern linguistic AI tools can detect emotional tones, cultural nuances, and even sarcasm in customer feedback across multiple languages. This poll tests your knowledge of how advanced language technologies are being deployed in customer sentiment analysis across global markets.

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BERT (Bidirectional Encoder Representations from Transformers)
Word2Vec Emotional Mapping
RNN Sentiment Vectors
GPT-1 Emotional Intelligence Module