Which mathematical technique forms the foundation of Amazon's recommendation system that suggests products based on 'Customers who bought this also bought...'?

The retail industry increasingly relies on mathematical models to optimize operations and improve customer experiences. Advanced algorithms help predict customer behavior, optimize inventory, and personalize recommendations. This poll tests your knowledge about how a major retail innovation uses mathematics to enhance the shopping experience and drive business decisions.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Collaborative filtering using matrix factorization
Bayesian probability trees
Markov decision processes
Convolutional neural networks