Comments (3)
Hi @dtchang, I had another look at the notebook and I think the fit is actually pretty good. In this PR, I updated the notebook so that it plots the mean and variance of y
instead of f
. In the figure below, you can see that the fit now encloses the data. You can also observe the increased uncertainty on f
in the far left and right of the domain.
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I still can't find the updated notebook in the GitHub. But, I think this issue should be re-opened because it is not a plotting problem, but a prediction problem. f is the prediction, whereas y is the target. So, it seems to me the plot should be based on the mean and variance of f, not y, as in the published tutorial. BTW, the issue of poor uncertainty estimation exists not just in this tutorial, but also in other tutorials (e.g., "Introduction to GPflux" and "Why GPflux is a modern (deep) GP library").
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Related Issues (20)
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