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This question is from a uni module about machine learning. I'm a bit stuck as I can't relate it to the bias-variance trade-off, to me the question implies all models have something to do with the trade off but I can only think of B being overfitted on its training data implying a low bias and high variance. I don't know how to explain A having both a high error in testing and training, and C I'm lost.


1 Answer 1


It seems to me differently:

B. An example of small bias and variance.

A. A large bias (low quality at the training stage).

C. A large variance (losses for different data vary greatly).

But all this is said, assuming that the loss scale does not need to be taken literally. Otherwise, I also don't know how to interpret graphs A and C: absolutely the same losses on the test, which do not depend on the quality of training.

  • 2
    $\begingroup$ thanks :), I see where I was I wrong now, these graphs were confusing me for a while and I wasn't thinking about it properly $\endgroup$
    – pixel.t87
    Dec 7, 2023 at 13:17

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