Which linguistic innovation first allowed retail chatbots to understand contextual references across multiple customer messages?

The field of retail chatbots has evolved dramatically in recent years, with language processing capabilities becoming increasingly sophisticated. This poll tests your knowledge about a significant milestone in chatbot linguistic technology that revolutionized retail customer service. Understanding these developments helps product managers and developers appreciate how far natural language processing has come and where it might be heading in retail applications.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Transformer-based architecture with attention mechanisms
Basic Named Entity Recognition (NER)
Simple keyword matching algorithms
Rule-based grammar systems