Which personalization technique revolutionized Netflix's recommendation system in 2006 when they offered a $1 million prize to improve it?

The battle for viewer attention on streaming platforms is fiercer than ever, with personalization algorithms playing a crucial role in content discovery. Major streaming services use sophisticated recommendation systems to keep viewers engaged and reduce churn. These algorithms analyze viewing habits, preferences, and even time of day to suggest content that will keep subscribers watching. How well do you understand the technology that shapes what millions of people watch every day?

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Collaborative Filtering
Content-Based Analysis
Neural Network Deep Learning
Contextual Bandits Algorithm