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Some background...
Research At Netflix
But first… why?
1999 Started work on recommendations
(DVDs)
2006-2009 Launched Netflix Prize, 1M prize to
improve predicted ratings
2007-2011 Transitioned to streaming
2014 300+ people working on content discovery, $150m per year investment.
The value of research?● Business Value
● Consumer <-> Producer
How much is 0.1% worth? 83,000,000 members + modest growth$10 * 12 months---~5-100+ million a year
The value of research?● Business Value
● Consumer <-> Producer
Our approach
Freedom and Responsibility
If you want to build a ship, don't drum up people to collect wood and don't assign them tasks and work, but rather teach them to long for the endless immensity of the sea. Antoine de Saint-Exupéry, The Little Prince
Some examples of WIP:
1.Understanding tastes
Finding the right target audience for titles
Inform our content create/purchase decisions
R ≈ UM
R ≈ UM
Implicit data (e.g. count data)Non-negative constraintsDifferent matrix normsDifferent generative assumptionsFully bayesian treatment...
K
U
Pα θ φz r
β
Convex combination of topics proportions and movie proportions within topic
φ3φ2
φ1
User
2. Beyond Recommenders
WhichGenre
s
Ordering
Dedupe
Diversity
2 3 4 51 6 7 8
Worth more
3. Going Global
Jan 6th, 2016
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A B C
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B
4. Image Optimization
Pop Quiz !
CONTROL
14% ▲ 6% ▲
Anatomy of a boxart...
Scaling it UP
Visualization
Search
Testing
Stream Optimization
