add corrected perplexity logging for every n steps #3
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Thanks, this is super helpful! |
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quick pr that fixes the agglomerated perplexity calculation on NLP runs so that the Jensen's inequality issue doesn't crop up. I'm pretty sure that you can directly compare the output from my added logic with the (incorrect) averaging of exponentiated batch/step perplexities I'm ASSUMING lightning does automatically every N steps under the hood.
I'll take it out of draft once I'm finished testing. Very cool paper!