Which NLP innovation first enabled e-commerce platforms to effectively analyze customer sentiment in product reviews at scale?

Natural Language Processing (NLP) has transformed how e-commerce platforms understand and respond to customer queries and preferences. From intelligent search functions to sentiment analysis and personalization, NLP sits at the intersection of linguistics and retail technology. This poll tests your knowledge about a pivotal innovation in e-commerce language processing that revolutionized how online stores communicate with customers.

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BERT (Bidirectional Encoder Representations from Transformers)
Word2Vec embedding models
Long Short-Term Memory (LSTM) networks
Recurrent Neural Networks (RNN)