Which linguistic technology first enabled major retailers to analyze customer sentiment at scale, fundamentally changing their approach to consumer psychology?

The intersection of linguistics and retail has created fascinating innovations in consumer psychology and shopping behavior. Language processing technologies have transformed how retailers understand and respond to customer needs. This trivia question explores a breakthrough linguistic technology that revolutionized retail customer service and dramatically impacted consumer psychology and brand perception.

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Natural Language Processing (NLP) sentiment analysis algorithms
Automated translation software for multilingual product descriptions
Voice recognition systems for inventory management
Linguistic demographic mapping tools