Which pioneering machine learning technique revolutionized book recommendation systems by analyzing not just purchase history but also reading patterns and completion rates?

The publishing and bookselling industry has undergone massive transformation with the integration of AI and machine learning algorithms. These technologies now shape how readers discover new books and how bookstores and publishers market their titles. This poll tests your knowledge about how AI recommendation systems have specifically changed the landscape of literary retail and reader engagement in recent years.

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Collaborative filtering with reading velocity analysis
Sentiment-based text mining
Cover image recognition algorithms
Author writing style comparison metrics