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  • intuition - What is perplexity? - Cross Validated
    So perplexity represents the number of sides of a fair die that when rolled, produces a sequence with the same entropy as your given probability distribution Number of States OK, so now that we have an intuitive definition of perplexity, let's take a quick look at how it is affected by the number of states in a model
  • 有问题,就会有答案 - 知乎
    知乎,中文互联网高质量的问答社区和创作者聚集的原创内容平台,于 2011 年 1 月正式上线,以「让人们更好的分享知识、经验和见解,找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容,聚集了中文互联网科技、商业、影视
  • 如何评价perplexity ai,会是未来搜索的趋势吗? - 知乎
    Perplexity AI 不是搜索的终点,但可能是我们逃离“信息垃圾场”的起点。 它就像是搜索引擎界的 GPT-4:懂你说什么,还知道去哪儿找答案。 当然,要是它哪天推出 Pro 会员,也别忘了上拼团看看有没有便宜团能拼,不然 AI 会用,钱包也得会养哈哈~
  • 如何评价 Perplexity 消除了 DeepSeek 的审查以提供 . . . - 知乎
    如何评价 Perplexity 消除了 DeepSeek 的审查以提供公正、准确的回答? Perplexity: 我们很高兴地宣布,全新 DeepSeek R1 模型现已在所有 Perplexity 平台上线。 您可以在网页、移动设备或 Ma…
  • Perplexity formula in the t-SNE paper vs. in the implementation
    The perplexity formula in the official paper of t-SNE IS NOT the same as in its implementation In the implementation (MATLAB): % Function that computes the Gaussian kernel values given a vector of % squared Euclidean distances, and the precision of the Gaussian kernel
  • machine learning - Why does lower perplexity indicate better . . .
    The perplexity, used by convention in language modeling, is monotonically decreasing in the likelihood of the test data, and is algebraicly equivalent to the inverse of the geometric mean per-word likelihood A lower perplexity score indicates better generalization performance I e, a lower perplexity indicates that the data are more likely
  • 你似乎来到了没有知识存在的荒原 - 知乎
    知乎,中文互联网高质量的问答社区和创作者聚集的原创内容平台,于 2011 年 1 月正式上线,以「让人们更好的分享知识、经验和见解,找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容,聚集了中文互联网科技、商业、影视
  • Why does perplexity change with different ranges of k?
    For example, k = 9 in the first two outputs hovers around a perplexity of 32,000 In the third output, k = 10 is nearly 100,000 in perplexity—nowhere near 32,000 Wouldn't we expect perplexity for k = 10 to remain close to 32,000? The topicmodels::LDA and topicmodels::perplexity calculations don't change if the fold and k remain the same
  • perplexity. ai 用于科研体验如何? - 知乎
    Perplexity的快速模型、克劳德4 0、GPT-4 1、双子座2 5专业版、Grok3测试版、Perplexity的无偏见推理模型、OpenAl的最新推理模型。 我用他给自己算了一挂:请你作为一个算命大师,帮我算一卦,我想知道我的人生各个阶段的命运。
  • autoencoders - Codebook Perplexity in VQ-VAE - Cross Validated
    When calculating perplexity, we are effectively calculating the codebook utilization In the example above, if you change the low and high to a narrow range, then out of the 1024 codebook entries that we could have picked predicted by our model, we only ended up picking a small range





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