"No one is harder on a talented person than the person themselves" - Linda Wilkinson ; "Trust your guts and don't follow the herd" ; "Validate direction not destination" ;

January 17, 2022

Validation Loss vs Accuracy

 I see both of them a bit differently, Both represent different aspects. 

Loss

  • A loss function is used to optimize a machine learning algorithm. 
  • Validation loss is measure of how much our predictions differ from what they should be before we put them through the threshold.

Accuracy

  • An accuracy metric is used to measure the algorithm’s performance (accuracy) in an interpretable way.
  • Empirically, accuracy seems like quite a limited measure of quality of predictions. To predict whether an example belongs to some class, our model outputs a number (whatever we put through sigmoid or softmax) between 0 and 1.

Ref - Link

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