Which AI language model architecture revolutionized NLP in retail chatbots and customer service systems by introducing the 'attention mechanism' that allows better understanding of context?

In the rapidly evolving field of Natural Language Processing (NLP) for retail applications, breakthrough technologies have transformed how brands communicate with customers. Machine learning models specialized for language have revolutionized chatbots, customer service, and content creation for retailers. Test your knowledge about a pivotal innovation that has changed the linguistic technology landscape in retail and beyond.

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Transformer architecture (introduced in 'Attention Is All You Need' paper)
Recurrent Neural Networks (RNN)
Convolutional Neural Networks (CNN)
Long Short-Term Memory Networks (LSTM)