Back to the lesson libraryMECHANISM · 14 MIN
M08.7 CONNECT THE MECHANISM

Estimate what a person may find useful

In 2006 Netflix offered a million dollars for better movie predictions. Learn the idea that helped win it, giving every person and every item a short taste vector, and how to judge the lists it makes.

LESSON OVERVIEW14 min lesson

Lesson overview

In 2006 Netflix offered a million dollars for better movie predictions. Learn the idea that helped win it, giving every person and every item a short taste vector, and how to judge the lists it makes.

What you’ll explore

  • Collaborative filtering and ranking models use interaction patterns or item content; sparse observations, cold starts, and the chosen objective shape recommendations.
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