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Practical Recommender Systems
Manning Publications

Practical Recommender Systems

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Practical Recommender Systems
Author(s): Kim Falk


Online recommender systems help users find movies, jobs, restaurants-even romance! There's an art in combining statistics, demographics, and query terms to achieve results that will delight them. Learn to build a recommender system the right way: it can make or break your application!

Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.

About the Technology

Recommender systems are everywhere, helping you find everything from movies to jobs, restaurants to hospitals, even romance. Using behavioral and demographic data, these systems make predictions about what users will be most interested in at a particular time, resulting in high-quality, ordered, personalized suggestions. Recommender systems are practically a necessity for keeping your site content current, useful, and interesting to your visitors.

About the Book

Practical Recommender Systems explains how recommender systems work and shows how to create and apply them for your site. After covering the basics, you'll see how to collect user data and produce personalized recommendations. You'll learn how to use the most popular recommendation algorithms and see examples of them in action on sites like Amazon and Netflix. Finally, the book covers scaling problems and other issues you'll encounter as your site grows.

What's inside

  • How to collect and understand user behavior
  • Collaborative and content-based filtering
  • Machine learning algorithms
  • Real-world examples in Python

About the Reader

Readers need intermediate programming and database skills.

About the Author

Kim Falk is an experienced data scientist who works daily with machine learning and recommender systems.

Table of Contents


  1. What is a recommender?
  2. User behavior and how to collect it
  3. Monitoring the system
  4. Ratings and how to calculate them
  5. Non-personalized recommendations
  6. The user (and content) who came in from the cold

  8. Finding similarities among users and among content
  9. Collaborative filtering in the neighborhood
  10. Evaluating and testing your recommender
  11. Content-based filtering
  12. Finding hidden genres with matrix factorization
  13. Taking the best of all algorithms: implementing hybrid recommenders
  14. Ranking and learning to rank
  15. Future of recommender systems


ISBN:  9781617292705