Which innovative personalization algorithm technique first allowed major airlines to dynamically adjust in-flight entertainment offerings based on real-time passenger preferences?

In today's competitive transportation industry, personalization algorithms have become a game-changer for companies seeking to enhance customer experience and loyalty. From ride-sharing services to public transit and airlines, transportation providers are leveraging customer data to create tailored experiences. This trivia question explores a groundbreaking personalization innovation that significantly impacted customer satisfaction in the transportation sector.

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Collaborative Route Filtering (CRF), introduced by Delta Airlines in 2019
Preference Cascade Architecture (PCA), pioneered by Emirates in 2018
Neural Journey Mapping (NJM), developed by Lufthansa in 2020
Adaptive Experience Protocol (AEP), implemented by Singapore Airlines in 2017