About perplexity

In information theory, perplexity is a measurement of how well a probability distribution or probability model predicts a sample. It may be used to compare probability models. A low perplexity indicates the probability distribution is good at predicting the sample.

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perplexity

the exponentiation of the information entropy

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About perplexity

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Facts from Wikidata (CC0).

Not who you're looking for? Others named perplexity: 1990 video game