Which linguistic technique revolutionized retail chatbots by allowing them to better understand customer intent rather than just keywords?

Natural Language Processing (NLP) has transformed how retailers interact with customers through chatbots. These AI assistants need to understand linguistic nuances, regional dialects, and customer intent to provide effective service. The evolution of retail chatbots represents a fascinating intersection between computational linguistics and customer service innovation. Test your knowledge about this linguistic-driven retail technology!

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Sentiment analysis
Transformer-based neural networks with attention mechanisms
Simple part-of-speech tagging
Syntactic parsing trees