Which pioneering algorithm, introduced in the late 1990s, revolutionized retail personalization by using collaborative filtering to recommend products based on similar user preferences?

The evolution of retail personalization has transformed how brands connect with consumers. Behind today's sophisticated recommendation systems lies a fascinating history of innovation that changed shopping forever. This poll tests your knowledge about a pivotal moment in the development of retail personalization technology that set the foundation for how we experience online shopping today.

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Amazon's Item-to-Item Collaborative Filtering (1998)
Netflix's Cinematch System (2000)
Google's PageRank Algorithm (1996)
Facebook's EdgeRank Algorithm (2001)