Which linguistic technology innovation was FIRST adopted by major online retailers to dramatically improve their product search algorithms?

Natural Language Processing (NLP) has transformed how retailers interact with customers, from chatbots to voice shopping assistants. But how much do you know about the cutting-edge linguistic technologies powering today's retail experiences? Test your knowledge about the intersection of language technology and retail innovation in this challenging trivia question!

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BERT (Bidirectional Encoder Representations from Transformers) semantic search
Rule-based grammar parsing systems
GPT (Generative Pre-trained Transformer) autocompletion
Multilingual sentiment analysis