>
> I like the look of this better, though it means there's no option for
> cleverness about multiprocessing. And the recursive execution of a Pipeline
> would be somewhat neater and not require memoizing for transform.
>
>
> What do you mean with "cleverness about multiprocessing"?
> Somewhere a decision has to be made which computations should be
> parallelized and which should be serial.
> The splitting into folds should be in GridSearchCV. So I don't entirely
> see how this would work.
>
> Basically GridSearchCV would need to query the estimator to know which
> parameters should be searched over serially and in which order,
> so it can do the dispatching.
>
I meant that I had intended one method do reordering and cost assignment
that could be used to split the candidates. That would be a reduplication
of the reordering work in this generator model. But I think it is
unimportant.
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