O'Reilly logo

R Data Analysis Cookbook - Second Edition by Kuntal Ganguly

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Building collaborative filtering systems

The basic idea of collaborative filtering is that if user A and user B shared the same interests in the past (have a similar purchase history or they liked the same book/movie), then they will also have similar tastes in the future, such as a recently viewed movie by user A that user B has not yet seen which could be proposed to user B. Netflix movie recommendations are one good example of this type of recommender system.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required