Which AI-powered retail innovation was first adopted by major performing arts venues to create personalized recommendation systems for patrons?

The performing arts industry is rapidly evolving with technological innovations enhancing everything from ticket sales to audience engagement. Artificial intelligence is transforming how theaters, concert venues, and production companies understand their audiences and create personalized experiences. This trivia question explores a groundbreaking AI implementation that's changing how performing arts venues connect with their patrons.

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Spotify's Collaborative Filtering algorithm, adapted for theater productions and performances
The Broadway Recommendation Engine (BRE), developed exclusively for performing arts ticket sales
Amazon's recommendation system, modified for performing arts subscriptions and ticket packages
Google's DeepMind Audience Predictor, designed to forecast performing arts attendance patterns