[[perplexity|perplexity]]

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📓 garden/KGBicheno/Artificial Intelligence/Introduction to AI/Week 3 - Introduction/Definitions/Perplexity.md by @KGBicheno

perplexity

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One measure of how well a model is accomplishing its task. For example, suppose your task is to read the first few letters of a word a user is typing on a smartphone keyboard, and to offer a list of possible completion words. Perplexity, P, for this task is approximately the number of guesses you need to offer in order for your list to contain the actual word the user is trying to type.

Perplexity is related to cross-entropy as follows: The equation for perplexity

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public document at doc.anagora.org/perplexity|perplexity
video call at meet.jit.si/perplexity|perplexity

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