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Recently I crossed this paper which represents the evaluation of various models' performances within a single dataset by Boxplot over $Absolute~Error~(AE)$ as follows:

img
Fig. 12: Boxplot of baseline methods for our method and previous studies for M1. ref

Normally we use $Mean~Absolute~Error~(MAE)$ or $Mean~Square~Error~(MSE)$, etc for different models comparison.

I have checked this post: Box Plot Explained with Examples but still there some considerations like:

My question:

  • How this representation can be interpreted? (knowing that the lower the error, the better model)
  • Does it mean that instead of using $mean$ or $average$ of error calculation e.g. $Mean~Absolute~Error~(MAE)$ by bar plot, one can just collect all error estimations during learning and plot box plot? then which extra information can translate that classical bar plot over MAE could not?

I can not figure it out what is the benefits and logic behind it.


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Mario
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