Polynation (track)
by Andrew Bird
Year: 2012
From the album Break It Yourself (track #2)
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Polynation appears on the following album(s) by Andrew Bird:
- Break It Yourself (track #2) (this album) (2012)
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Polynation ratings
Average Rating = (n ÷ (n + m)) × av + (m ÷ (n + m)) × AVwhere:
av = trimmed mean average rating an item has currently received.
n = number of ratings an item has currently received.
m = minimum number of ratings required for an item to appear in a 'top-rated' chart (currently 10).
AV = the site mean average rating.
Showing latest 5 ratings for this track. | Show all 14 ratings for this track.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| ! | 07/12/2026 00:47 | Exist-en-ciel | 167,650 | 71/100 |
| ! | 09/19/2020 18:39 | brent13 | 11,318 | 85/100 |
| ! | 06/26/2020 14:04 | JAP12345 | 15,388 | 93/100 |
| ! | 09/28/2019 15:34 | 29,889 | 64/100 | |
| ! | 05/18/2018 15:08 | 3,747 | 85/100 |
Rating metrics:
Outliers can be removed when calculating a mean average to dampen the effects of ratings outside the normal distribution. This figure is provided as the trimmed mean. A high standard deviation can be legitimate, but can sometimes indicate 'gaming' is occurring. Consider a simplified example* of an item receiving ratings of 100, 50, & 0. The mean average rating would be 50. However, ratings of 55, 50 & 45 could also result in the same average. The second average might be more trusted because there is more consensus around a particular rating (a lower deviation).
(*In practice, some tracks can have several thousand ratings)
This track has a Bayesian average rating of 72.5/100, a mean average of 70.0/100, and a trimmed mean (excluding outliers) of 70.0/100. The standard deviation for this track is 17.3.
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