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entropy

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entropy
entropy Physics. (ˈɛntrəpɪ) [f. Gr. τροπή transformation (lit. ‘turning’), after the analogy of energy. First proposed by Clausius (1865) in Ger. form entropie. Clausius (Pogg. Ann. CXXV. 390), assuming (unhistorically) the etymological sense of energy to be ‘work-contents’ (werk-inhalt), devised th... Oxford English Dictionary
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Entropy: The Invisible Force That Brings Disorder to ... - HowStuffWorks
Nov 30, 2023Thermodynamic entropy is a measure of the disorder in a closed system. According to the second law, when entropy increases, internal energy usually rises as well. If it isn't harnessed somehow, that thermal energy gets dispersed. Because the measure of entropy is based on probabilities, it is, of course, possible for the entropy to decrease in ...
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Cross-entropy - Wikipedia
Cross-entropy loss function and logistic regression. Cross-entropy can be used to define a loss function in machine learning and optimization. The true probability is the true label, and the given distribution is the predicted value of the current model. This is also known as the log loss (or logarithmic loss [3] or logistic loss ); [4] the ...
en.wikipedia.org 0.0 0.90000004 0.0
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Tool for measuring entropy quality? Is there a tool available for Linux systems that can measure the "quality" of entropy on the system? I know how to count the entropy: cat /proc/sys/kernel/random/entr...
/tmp/out ent /tmp/out
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High-entropy alloy - Wikipedia
High-entropy alloys ( HEAs) are alloys that are formed by mixing equal or relatively large proportions of (usually) five or more elements. Prior to the synthesis of these substances, typical metal alloys comprised one or two major components with smaller amounts of other elements. For example, additional elements can be added to iron to improve ...
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Entropy and life - Wikipedia
Entropy and life. Research concerning the relationship between the thermodynamic quantity entropy and both the origin and evolution of life began around the turn of the 20th century. In 1910, American historian Henry Adams printed and distributed to university libraries and history professors the small volume A Letter to American Teachers of ...
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The Book Of Us : Entropy
《The Book Of Us : Entropy》是韩国男子组合DAY6所推出的第三张韩语正规专辑，于2019年10月22日发行，由JYP娱乐制作，Dreamus发行。共收录十一首曲目，主打歌为《The Book Of Us : Entropy'》。 背景 10月6日，官方公布了回归预告影片,宣布Day6将会在10月22日发行新专辑《The Book of Us : Entropy》，并在影片中提及主打歌《Sweet Choas》的名字和当中的亮点歌词「But I Like It」。 wikipedia.org
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algorithmic entropy in Chinese - algorithmic entropy meaning in Chinese ...
algorithmic entropy in Chinese : [网络] 算法熵 …. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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灰度图像的熵 - MATLAB entropy - MathWorks 中国
默认情况下，entropy 对逻辑数组使用两个 bin，对 uint8、uint16 或 double 数组使用 256 个 bin。 为计算直方图计数，entropy 将除 logical 以外的任何类转换为 uint8，以使像素值离散并直接对应于 bin 值。
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Entropy shielding - SCP Foundation
The SCP Foundation's 'top-secret' archives, declassified for your enjoyment.
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一文搞懂熵(Entropy),交叉熵(Cross-Entropy) - 知乎 - 知乎专栏
1. 熵(Entropy) 1.1 混乱程度，不确定性，还是信息量? 不同的人对熵有不同的解释：混乱程度，不确定性，惊奇程度，不可预测性，信息量等等，面对如此多的解释，第一次接触时难免困惑。
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VJudge--Entropy | 地球人你好
An entropy encoder is a data encoding method that achieves lossless data compression by encoding a message with "wasted" or "extra" information removed. In other words, entropy encoding removes information that was not necessary in the first place to accurately encode the message. A high degree of entropy implies a message with a great ...
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为什么交叉熵（cross-entropy）可以用于计算代价？
交叉熵这东西你如果理解为两个概率分布会发现它就是nonsense，你得把对数里面那个分布理解为真实的随机变量分布，而将对数外面那个理解为观察到的频率。然后你就会发现它就是最最原始的MLE（最大似然估计）套了个时髦的壳而已。 比如说现在有一个真实分布为 P(x) 的随机变量，我们对它进行了N次独立同分布实验，对于每个可能的结果x观察到的次数为 N(x) ，那么它的似然值就可以写成 L=\prod _x P(x)^{N(x)} 很好理解对吧，乘法公式，把每次实验的概率乘起来，然后合并相同的项写成幂次。这是个乘积的形式，取个对数可以得到求和的形式： \ln L=\sum_x N(x) \ln P(x... zhihu
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(PDF) High-entropy alumino-silicides: a novel class of high-entropy ...
Herein we reported a new class of HECs, namely high-entropy alumino-silicides (Mo0.25Nb0.25Ta0.25V0.25) (Al0.5Si0.5)2 (HEAS-1) with multi-cationic and -anionic structure. The formation possibility ...
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Information and Entropy (1) - Newtonpula's Land
Jul 1, 2022Compression. two types of compression: - Lossless or reversible compression - Lossy or irreversible compression. Variable-Length Encoding. We put off the discussion of this technique until Chapter 5.
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