Switch to softplus transforms for autoguide scales #2823
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fehiepsi
approved these changes
Apr 25, 2021
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@fritzo I just merged the other one. |
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OK, looks like all the guides use softplus transforms now. Thanks for reviewing! |
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@vitkl's experiments in pyro-ppl/sandbox#14 suggest that softplus transforms are more numerically stable for scale parameters in guides, in agreement with anecdotal experience of @martinjankowiak.
This PR changes to use softplus transforms by default in autoguides.