Hi there, I want to conformalize quantile regressi...
# general
c
Hi there, I want to conformalize quantile regression (Multi-quantile NHITS/LSTM, Multi-quantile catboostRegressor). Does the current implementation of CP on Nixtla deals with such cases?
@José Morales, please can you help on this or are there stuffs that I'm missing
j
I don't think we can do this at the moment
j
@Christian Ngnie I am working on the support of conformal prediction in Neuralforecast. Please see the comment in https://github.com/Nixtla/neuralforecast/pull/1171/files#r1788935653 I am relatively new to conformal predictions, would like to understand better is that what you are looking for and is it appropriate to conformalize quantiles outputs in this manner. cc: @José Morales @Valeriy
o
As far as I understand it's okay to conformalize quantile outputs; similarly as it's okay to conformalize over models trained using RMSE. The conformal intervals just provide a (quantile) interval over the point forecast based on a validation set.
j
@Olivier Sounds good to me. I will provide an optional argument such that we can disable this by default, but users can choose to do so if needed
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c
@Jing Qiang Goh awesome. It's totally ok and appropriate to conformalize quantiles in that way.
v
Usually people do two things 1) create prediction intervals from point predictions 2) if the model predicts quantiles can conformalize quantiles. A good example is NeuralProphet it has both options.
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j
@Olivier It is interesting to learn that Darts library is introducing conformal predictions https://github.com/unit8co/darts/pull/2552 I have not checked the details yet but like to share this, in case there are lessons or ideas we can learn from too @Valeriy FYI
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