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"IMDb" MVP -- How?

by teekayy

For titles that don't have enough votes to show a meaningful rating, IMDb simply does not show its rating. But when you're starting off such a site from scratch with no initial voting data:

  1. What exactly do you show as the rating for each title? (I'm reluctant to simply show "not enough voting data" for all the titles)
  2. How would you incentivize more people to sign up and rate titles?

Also, got any ideas for an algorithm to calculate a weighted average title rating from user votes?

teekayy's avatarteekayy
on April 11, 2021
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  1. 3
    1. When you don't have any rating, you can simply ask user to rate it in that position.

    rating

    1. You can have pop-up that will show after a some period "Do you watch this movie? Rate it now"

    Here is a good read for rating system: https://uxdesign.cc/the-ux-of-rating-systems-bc4f9d424b90

    markojotic's avatar markojotic
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    5 years ago
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    1. 1

      cool!

      8bit's avatar 8bit
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      5 years ago
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    2. 1

      That's a great article, thanks :)

      teekayy's avatar teekayy
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      5 years ago
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  2. 2

    IMDB uses this famous formula:

    weighted rank (WR) = (v ÷ (v+m)) × R + (m ÷ (v+m)) × C

    where:
    R = average for the movie (mean) = (Rating)
    v = number of votes for the movie = (votes)
    m = minimum votes required to be listed in the Top 250 (currently 1250)
    C = the mean vote across the whole report (currently 6.8)

    — http://answers.google.com/answers/threadview/id/507508.html

    SteveL's avatar SteveL
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    5 years ago
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