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For example, if you have two choices, one with probability 0.9, your chances of a correct guess using the optimal strategy are 90 percent. Yet, the perplexity is 2 −0.9 log 2 0.9 - 0.1 log 2 0.1 = 1.38. The inverse of the perplexity, 1/1.38 = 0.72, does not correspond to the 0.9 probability.
Note that the context of the first n – 1 n-grams is filled with start-of-sentence markers, typically denoted <s>. Additionally, without an end-of-sentence marker, the probability of an ungrammatical sequence *I saw the would always be higher than that of the longer sentence I saw the red house.
The CEO of Perplexity AI shared some principles that guided him as a startup founder.. Aravind Srinivas talked about having "an extreme bias for action" in a recent talk at Stanford. He also said ...
Perplexity is a measurement of how well a probability distribution or probability model predicts a sample. Perplexity may also refer to: Perplexity, a 1990 video game; Perplex City, an alternate reality game (ARG) Perplexity AI, a conversational search engine
The new tools are part of a major push by Perplexity to be more of a one-stop hub for users. ... In the example of a query shared in Monday’s press announcement—about the sub-$500 coffee ...
For example, the phrase "under control" in an English sentence is aligned with the phrase "unter kontrolle" in its German counterpart. The phrase "unter kontrolle" is then found in another German sentence with the aligned English phrase being "in check," a paraphrase of "under control."
Perplexity AI reportedly secured $500 million in its latest funding round this month. That puts the startup's valuation at $9 billion, tripling its worth within six months.
Perplexity AI is a conversational search engine that uses large language models (LLMs) to answer queries using sources from the web and cites links within the text response. [ 3 ] [ 4 ] Its developer, Perplexity AI, Inc., is based in San Francisco, California .