Skip to main content
Message Font: Serif | Sans-Serif
 
No. of Recommendations: 2
I have intimate experience with this via the Netflix Prize (remember that?)

You would be surprised by how little information is required to get almost all of the value out of a recommendation system. By the time you get to about ~50 ratings you are close to as accurate as you are gonna get for an individual. Rounding 1,2 to 1 and 3,4,5 to 5 did little to impact this. And Netflix is also completely correct that ratings and actual 'propensity to watch' are shockingly different.

Netflix knows what they are doing.
Print the post  

Announcements

What was Your Dumbest Investment?
Share it with us -- and learn from others' stories of flubs.
When Life Gives You Lemons
We all have had hardships and made poor decisions. The important thing is how we respond and grow. Read the story of a Fool who started from nothing, and looks to gain everything.
Contact Us
Contact Customer Service and other Fool departments here.
Work for Fools?
Winner of the Washingtonian great places to work, and Glassdoor #1 Company to Work For 2015! Have access to all of TMF's online and email products for FREE, and be paid for your contributions to TMF! Click the link and start your Fool career.