Which scientific technique forms the foundation of most modern retail AI recommendation systems that personalize product suggestions?

Artificial intelligence is transforming how scientific retailers analyze consumer behavior and predict future trends. Advanced algorithms are increasingly being used to process massive datasets from multiple touchpoints. This poll tests your knowledge about the technical foundations of retail AI and how it leverages scientific principles to revolutionize shopping experiences and inventory management.

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Collaborative filtering using matrix factorization and singular value decomposition
Blockchain-based consensus algorithms with distributed ledger verification
Quantum computing using Grover's algorithm for database searching
Natural language processing with BERT models focused on sentiment analysis