unkz

unkz t1_j2x7ggd wrote

That’s basically it, cross entropy (sum of negative log likelihood) and perplexity are related by

Perplexity = 2^entropy

So the main two things are, interpretability (perplexity is a measure of how many words the model is choosing from at any point), and scale (small changes in cross entropy result in large changes in perplexity).

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