• In information theory, the cross-entropy between two probability distributions p {\displaystyle p} and q {\displaystyle q} , over the same underlying...
    19 KB (3,264 words) - 23:00, 21 April 2025
  • statistics, the Kullback–Leibler (KL) divergence (also called relative entropy and I-divergence), denoted D KL ( P ∥ Q ) {\displaystyle D_{\text{KL}}(P\parallel...
    77 KB (13,067 words) - 13:07, 12 June 2025
  • Thumbnail for Entropy (information theory)
    In information theory, the entropy of a random variable quantifies the average level of uncertainty or information associated with the variable's potential...
    72 KB (10,220 words) - 13:03, 6 June 2025
  • entropy states that the probability distribution which best represents the current state of knowledge about a system is the one with largest entropy,...
    31 KB (4,196 words) - 11:16, 14 June 2025
  • correlation for regression tasks or using information measures such as cross entropy for classification tasks. Theoretically, one can justify the diversity...
    53 KB (6,685 words) - 14:14, 8 June 2025
  • In physics, the Tsallis entropy is a generalization of the standard Boltzmann–Gibbs entropy. It is proportional to the expectation of the q-logarithm...
    24 KB (2,881 words) - 17:28, 12 June 2025
  • The cross-entropy (CE) method is a Monte Carlo method for importance sampling and optimization. It is applicable to both combinatorial and continuous...
    7 KB (1,085 words) - 19:50, 23 April 2025
  • of the factors’ logarithms and flipping the sign yields the classic cross-entropy loss: θ ∗ = a r g m i n θ − ∑ i T log ⁡ ∑ j = 1 J ( i ) P ( y j ( i...
    36 KB (3,901 words) - 13:08, 9 June 2025
  • Thumbnail for Hyperbolastic functions
    binary cross-entropy compares the observed y ∈ { 0 , 1 } {\displaystyle y\in \{0,1\}} with the predicted probabilities. The average binary cross-entropy for...
    41 KB (7,041 words) - 15:11, 5 May 2025
  • _{p}\left({\frac {n}{2}}\right)+{\frac {np}{2}}\end{aligned}}} The cross-entropy of two Wishart distributions p 0 {\displaystyle p_{0}} with parameters...
    27 KB (4,194 words) - 19:55, 19 June 2025
  • Cross-entropy benchmarking (also referred to as XEB) is a quantum benchmarking protocol which can be used to demonstrate quantum supremacy. In XEB, a...
    4 KB (548 words) - 18:33, 10 December 2024
  • the relationship between maximizing the likelihood and minimizing the cross-entropy, URL (version: 2019-11-06): https://stats.stackexchange.com/q/364237...
    68 KB (9,706 words) - 19:59, 16 June 2025
  • The ORM is usually trained via logistic regression, i.e. minimizing cross-entropy loss. Given a PRM, an ORM can be constructed by multiplying the total...
    24 KB (2,862 words) - 09:59, 13 June 2025
  • In statistics and information theory, a maximum entropy probability distribution has entropy that is at least as great as that of all other members of...
    36 KB (4,495 words) - 18:46, 19 June 2025
  • is different than the data set used to train the large model) using cross-entropy as the loss function between the output of the distilled model y ( x...
    17 KB (2,568 words) - 19:31, 2 June 2025
  • evaluation and comparison of language models, cross-entropy is generally the preferred metric over entropy. The underlying principle is that a lower BPW...
    115 KB (11,926 words) - 02:40, 16 June 2025
  • Perplexity (category Entropy and information)
    {1}{N}}\sum _{i=1}^{N}\log _{b}q(x_{i})} may also be interpreted as a cross-entropy: H ( p ~ , q ) = − ∑ x p ~ ( x ) log b ⁡ q ( x ) {\displaystyle H({\tilde...
    13 KB (1,893 words) - 18:04, 6 June 2025
  • Thumbnail for Beta distribution
    expression is identical to the negative of the cross-entropy (see section on "Quantities of information (entropy)"). Therefore, finding the maximum of the...
    245 KB (40,562 words) - 12:56, 14 May 2025
  • Thumbnail for Genetic algorithm
    The cross-entropy (CE) method generates candidate solutions via a parameterized probability distribution. The parameters are updated via cross-entropy minimization...
    69 KB (8,221 words) - 21:33, 24 May 2025
  • interpreted geometrically by using entropy to measure variation: the MLE minimizes cross-entropy (equivalently, relative entropy, Kullback–Leibler divergence)...
    13 KB (1,720 words) - 09:30, 21 May 2025
  • loss function or "cost function" For classification, this is usually cross-entropy (XC, log loss), while for regression it is usually squared error loss...
    56 KB (7,993 words) - 15:52, 29 May 2025
  • conditional entropy conditional quantum entropy confusion and diffusion cross-entropy data compression entropic uncertainty (Hirchman uncertainty) entropy encoding...
    1 KB (93 words) - 09:42, 8 August 2023
  • Thumbnail for Simulated annealing
    The cross-entropy method (CE) generates candidate solutions via a parameterized probability distribution. The parameters are updated via cross-entropy minimization...
    35 KB (4,641 words) - 11:29, 29 May 2025
  • is trained by gradient descent to minimize the cross-entropy loss. In full formula, the cross-entropy loss is: − ∑ i ln ⁡ e v w i ′ ⋅ ( ∑ j ∈ i + N v...
    33 KB (4,250 words) - 02:31, 10 June 2025
  • the mean squared error criterion implemented in MSECriterion and the cross-entropy criterion implemented in ClassNLLCriterion. What follows is an example...
    10 KB (863 words) - 00:26, 14 December 2024
  • regression, multinomial logit (mlogit), the maximum entropy (MaxEnt) classifier, and the conditional maximum entropy model. Multinomial logistic regression is used...
    31 KB (5,225 words) - 12:07, 3 March 2025
  • Battiti, G. Tecchiolli (1994), recently reviewed in the reference book cross-entropy method by Rubinstein and Kroese (2004) random search by Anatoly Zhigljavsky...
    12 KB (1,071 words) - 06:25, 15 December 2024
  • perform biproportion. We have also the entropy maximization, information loss minimization (or cross-entropy) or RAS which consists of factoring the...
    22 KB (3,463 words) - 21:01, 17 March 2025
  • supervised model. In particular, it is trained to minimize the following cross-entropy loss function: L ( θ ) = − 1 ( K 2 ) E ( x , y w , y l ) [ log ⁡ ( σ...
    62 KB (8,617 words) - 19:50, 11 May 2025
  • y)\,} Despite similar notation, joint entropy should not be confused with cross-entropy. The conditional entropy or conditional uncertainty of X given...
    64 KB (7,973 words) - 23:39, 4 June 2025