Which groundbreaking NLP model released in 2018 revolutionized language AI by introducing bidirectional training and became the foundation for most modern language assistants and tools?

Voice assistants have transformed how we interact with technology, but their development required breakthrough innovations in computational linguistics and natural language processing. Behind these seemingly simple interfaces lie complex systems that have evolved through decades of research. This poll tests your knowledge about a pivotal product innovation that changed how machines understand human language.

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BERT (Bidirectional Encoder Representations from Transformers)
Word2Vec
GloVe (Global Vectors for Word Representation)
ELMo (Embeddings from Language Models)