Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
skip to main content
research-article
Open access

The Netflix Recommender System: Algorithms, Business Value, and Innovation

Published: 28 December 2015 Publication History

Abstract

This article discusses the various algorithms that make up the Netflix recommender system, and describes its business purpose. We also describe the role of search and related algorithms, which for us turns into a recommendations problem as well. We explain the motivations behind and review the approach that we use to improve the recommendation algorithms, combining A/B testing focused on improving member retention and medium term engagement, as well as offline experimentation using historical member engagement data. We discuss some of the issues in designing and interpreting A/B tests. Finally, we describe some current areas of focused innovation, which include making our recommender system global and language aware.

References

[1]
Chris Alvino and Justin Basilico. 2015. Learning a Personalized Homepage. Retrieved December 6, 2015 from http://techblog.netflix.com/2015/04/learning-personalized-homepage.html.
[2]
Xavier Amatriain and Justin Basilico. 2012. Netflix Recommendations: Beyond the 5 stars (Part 2). Retrieved December 6, 2015 from http://techblog.netflix.com/2012/06/netflix-recommendations-beyond-5-stars.html
[3]
David M Blei, Andrew Y. Ng, and Michael I. Jordan. 2003. Latent Dirichlet allocation. The Journal of Machine Learning Research 3, 993--1022.
[4]
Olivier Chapelle, Thorsten Joachims, Filip Radlinski, and Yisong Yue. 2012. Large-scale validation and analysis of interleaved search evaluation. ACM Transactions on Information Systems 30, 1.
[5]
Alex Deng, Ya Xu, Ron Kohavi, and Toby Walker. 2013. Improving the sensitivity of online controlled experiments by utilizing pre-experiment data. In WSDM.
[6]
Trevor Hastie, Robert Tibshirani, and Jerome Friedman. 2011. The Elements of Statistical Learning: Data Mining, Inference, and Prediction (2nd. ed.). Springer.
[7]
Yehuda Koren. 2008. Factorization meets the neighborhood: A multifaceted collaborative filtering model. In 14th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (New York, NY).
[8]
Yehuda Koren, Robert Bell, and Chris Volinsky. 2009. Matrix factorization techniques for recommender systems. Computer 8, 30--37.
[9]
Andriy Mnih and Ruslan Salakhutdinov. 2007. Probabilistic matrix factorization. In Advances in Neural Information Processing Systems. 1257--1264.
[10]
Kevin P. Murphy. 2012. Machine Learning: A Probabilistic Perspective. MIT Press, Cambridge MA.
[11]
Prasanna Padmanabhan, Kedar Sadekar, and Gopal Krishnan. 2015. What’s trending on Netflix. Retrieved December 6, 2015 from http://techblog.netflix.com/2015/02/whats-trending-on-netflix.html.
[12]
Arkadiusz Paterek. 2007. Improving regularized singular value decomposition for collaborative filtering. In Proceedings of KDD Cup and Workshop. 5--8.
[13]
Leo Pekelis, David Walsh, and Ramesh Johari. 2015. The New Stats Engine. Internet. Retrieved December 6, 2015 from http://pages.optimizely.com/rs/optimizely/images/stats_engine_technical_paper.pdf.
[14]
Netflix Prize. 2009. The Netflix Prize. Retrieved December 6, 2015 from http://www.netflixprize.com/.
[15]
Steffen Rendle. 2010. Factorization machines. In 2010 IEEE 10th International Conference on Data Mining (ICDM). IEEE, 995--1000.
[16]
Joseph L. Schafer. 1997. Analysis of Incomplete Multivariate Data. CRC Press, Boca Raton, FL.
[17]
Barry Schwartz. 2015. The Paradox of Choice: Why More Is Less. Harper Perennial, New York, NY.
[18]
Bryan Gumm. 2013. Appendix 2: Metrics and the Statistics Behind A/B Testing. In A/B Testing: The Most Powerful Way to Turn Clicks into Customers, Dan Siroker and Pete Koomen (Eds.). Wiley, Hoboken, NJ.
[19]
Yee Whye Teh, Michael I. Jordan, Matthew J. Beal, and David M. Blei. 2006. Hierarchical Dirichlet processes. Journal of the American Statistical Association 101, 476.

Cited By

View all
  • (2024)Au-delà de Netflix : penser la diversité des pratiques et plateformes de télévision en ligneKinephanos10.7202/1113447ar10:1(1-14)Online publication date: 12-Sep-2024
  • (2024)HABERE ÇEVRİM İÇİ ERİŞİMDE YENİ DÖNEM: KİŞİSELLEŞTİRİLMİŞ HABER UYGULAMALARIKritik İletişim Çalışmaları Dergisi10.53281/kritik.14383066:1(99-130)Online publication date: 2-Jul-2024
  • (2024)An Improved Intelligent Machine Learning Approach to Music Recommendation Based on Big Data Techniques and DSO AlgorithmsICST Transactions on Scalable Information Systems10.4108/eetsis.517611:5Online publication date: 8-Apr-2024
  • Show More Cited By

Index Terms

  1. The Netflix Recommender System: Algorithms, Business Value, and Innovation

    Recommendations

    Comments

    Information & Contributors

    Information

    Published In

    cover image ACM Transactions on Management Information Systems
    ACM Transactions on Management Information Systems  Volume 6, Issue 4
    January 2016
    73 pages
    ISSN:2158-656X
    EISSN:2158-6578
    DOI:10.1145/2869770
    Issue’s Table of Contents
    Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.

    Publisher

    Association for Computing Machinery

    New York, NY, United States

    Publication History

    Published: 28 December 2015
    Accepted: 01 November 2015
    Revised: 01 September 2015
    Received: 01 July 2015
    Published in TMIS Volume 6, Issue 4

    Check for updates

    Author Tag

    1. Recommender systems

    Qualifiers

    • Research-article
    • Research
    • Refereed

    Contributors

    Other Metrics

    Bibliometrics & Citations

    Bibliometrics

    Article Metrics

    • Downloads (Last 12 months)20,599
    • Downloads (Last 6 weeks)3,541
    Reflects downloads up to 12 Nov 2024

    Other Metrics

    Citations

    Cited By

    View all
    • (2024)Au-delà de Netflix : penser la diversité des pratiques et plateformes de télévision en ligneKinephanos10.7202/1113447ar10:1(1-14)Online publication date: 12-Sep-2024
    • (2024)HABERE ÇEVRİM İÇİ ERİŞİMDE YENİ DÖNEM: KİŞİSELLEŞTİRİLMİŞ HABER UYGULAMALARIKritik İletişim Çalışmaları Dergisi10.53281/kritik.14383066:1(99-130)Online publication date: 2-Jul-2024
    • (2024)An Improved Intelligent Machine Learning Approach to Music Recommendation Based on Big Data Techniques and DSO AlgorithmsICST Transactions on Scalable Information Systems10.4108/eetsis.517611:5Online publication date: 8-Apr-2024
    • (2024)Generative AIEnhancing Communication and Decision-Making With AI10.4018/979-8-3693-9246-1.ch001(1-36)Online publication date: 27-Sep-2024
    • (2024)Harnessing Emotional Engagement for SuccessNeurosensory and Neuromarketing Impacts on Consumer Behavior10.4018/979-8-3693-8222-6.ch004(83-104)Online publication date: 4-Oct-2024
    • (2024)Unlocking AI's Potential in Customer Service MarketingAI Innovations in Service and Tourism Marketing10.4018/979-8-3693-7909-7.ch005(80-103)Online publication date: 26-Jul-2024
    • (2024)Roadmap to Talent ManagementBuilding Organizational Capacity and Strategic Management in Academia10.4018/979-8-3693-6967-8.ch017(463-492)Online publication date: 22-Nov-2024
    • (2024)Exploring the Synergy of Artificial Intelligence and Big Data Analytics in Enhancing Customer Engagement StrategiesImproving Service Quality and Customer Engagement With Marketing Intelligence10.4018/979-8-3693-6813-8.ch008(196-210)Online publication date: 30-Jun-2024
    • (2024)The Evolution of Personalization From Traditional Marketing to AI ComputingAI for Large Scale Communication Networks10.4018/979-8-3693-6552-6.ch019(415-444)Online publication date: 25-Oct-2024
    • (2024)Recommendation Systems and Content PersonalizationAI for Large Scale Communication Networks10.4018/979-8-3693-6552-6.ch015(323-348)Online publication date: 25-Oct-2024
    • Show More Cited By

    View Options

    View options

    PDF

    View or Download as a PDF file.

    PDF

    eReader

    View online with eReader.

    eReader

    Get Access

    Login options

    Full Access

    Media

    Figures

    Other

    Tables

    Share

    Share

    Share this Publication link

    Share on social media