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perplexity    音标拼音: [pɚpl'ɛksəti]
n. 困惑,混乱,纠缠

困惑,混乱,纠缠

perplexity
n 1: trouble or confusion resulting from complexity

Perplexity \Per*plex"i*ty\, n.; pl. {Perplexities}. [L.
perplexitas: cf. F. perplexit['e].]
The quality or state of being perplexed or puzzled;
complication; intricacy; entanglement; distraction of mind
through doubt or difficulty; embarrassment; bewilderment;
doubt.
[1913 Webster]

By their own perplexities involved,
They ravel more. --Milton.
[1913 Webster]

138 Moby Thesaurus words for "perplexity":
Chinese puzzle, Gordian knot, amorphousness, baffle, bafflement,
baffling problem, befuddlement, bewilderment, bind, bother,
botheration, brain twister, catch-22, chaos, cloud, complexity,
complexness, complication, confoundment, confusion, convolution,
crabbedness, crossword puzzle, crux, dark, darkness, daze,
difficulty, dilemma, discombobulation, discomfiture, discomposure,
disconcert, disconcertedness, disconcertion, disconcertment,
disorder, disorganization, disorientation, distress, disturbance,
doubt, embarrassment, enigma, enigmatic question, entanglement,
fix, floorer, flummox, flurry, fluster, flutter, fog, fogginess,
frenzy, fuddle, fuddlement, fuzziness, haze, impenetrability,
indeterminateness, indistinctness, intricacy, intricateness,
involution, involvement, jam, jigsaw puzzle, jumble, knot,
knotty point, maze, mess, mind-boggler, mist, mistiness, muddle,
muddlement, mumbo jumbo, murk, murkiness, mystery, mystification,
node, nodus, nonplus, nut to crack, obfuscation, obscurantism,
obscuration, obscurity, opacity, oxymoron, paradox,
perplexed question, perturbation, pickle, plight, pons asinorum,
poser, pother, predicament, problem, pucker, puzzle, puzzlement,
puzzler, quandary, question, question mark, ramification,
reconditeness, riddle, ruffle, scrape, shapelessness, shuffle,
sixty-four dollar question, stew, sticker, stumper, subtlety,
sweat, swivet, tanglement, teaser, technicality, tizzy,
tough proposition, unassuredness, unclarity, unclearness,
unplainness, unsettlement, upset, vagueness, vexed question, why


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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
  • 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~
  • 求通俗解释NLP里的perplexity是什么？ - 知乎
    困惑度 Perplexity 是衡量语言模型好坏的指标，为了更好地理解其意义，首先有必要回顾熵的概念。 根据信息论与编码的知识，我们知道 熵代表着根据信息的概率分布对其编码所需要的最短平均编码长度。
  • 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
  • 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
  • Perplexity calculation in variational neural topic models
    Since $\log p(X)$ is intractable in the NVDM, we use the variational lower bound (which is an upper bound on perplexity) to compute the perplexity following Mnih Gregor (2014)
  • 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…
  • Inferring the number of topics for gensims LDA - perplexity, CM, AIC . . .
    Having negative perplexity apparently is due to infinitesimal probabilities being converted to the log scale automatically by Gensim, but even though a lower perplexity is desired, the lower bound value denotes deterioration (according to this), so the lower bound value of perplexity is deteriorating with a larger number of topics in my figures
  • Intuition behind perplexity parameter in t-SNE
    The perplexity can be interpreted as a smooth measure of the effective number of neighbors The performance of SNE is fairly robust to changes in the perplexity, and typical values are between 5 and 50 What this effective number of neighbors would mean? Should I understand perplexity value as expected number of nearest neighbors to the point
  • 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





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