• statistics, a Pólya urn model (also known as a Pólya urn scheme or simply as Pólya's urn), named after George Pólya, is a family of urn models that can be...
    16 KB (3,099 words) - 05:03, 6 July 2025
  • Thumbnail for George Pólya
    George Pólya (/ˈpoʊljə/; Hungarian: Pólya György [ˈpoːjɒ ˈɟørɟ]; December 13, 1887 – September 7, 1985) was a Hungarian-American mathematician. He was...
    19 KB (1,804 words) - 09:27, 29 May 2025
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    (1977); Urn Models and Their Application: An Approach to Modern Discrete Probability Theory, Wiley ISBN 0-471-44630-0 Mahmoud, Hosam M. (2008); Pólya Urn Models...
    6 KB (848 words) - 20:43, 12 June 2025
  • binomial can also be motivated by an urn model - or more specifically a basic Pólya urn model. Consider an urn initially containing α {\displaystyle...
    10 KB (1,541 words) - 10:19, 10 June 2025
  • multinomial can also be motivated by an urn model - or more specifically a basic Pólya urn model. Consider an urn initially containing ∑ i = 0 m α i {\displaystyle...
    10 KB (1,904 words) - 00:28, 8 March 2025
  • Thumbnail for Beta-binomial distribution
    be motivated via an urn model for positive integer values of α and β, known as the Pólya urn model. Specifically, imagine an urn containing α red balls...
    15 KB (2,348 words) - 10:56, 15 June 2025
  • compound multinomial distribution (DCM) or multivariate Pólya distribution (after George Pólya). It is a compound probability distribution, where a probability...
    39 KB (6,950 words) - 22:13, 25 November 2024
  • Thumbnail for Probability distribution
    etc.) given a fixed number of total occurrences, sampling using a Pólya urn model (in some sense, the "opposite" of sampling without replacement) Categorical...
    48 KB (6,688 words) - 17:43, 6 May 2025
  • Thumbnail for Beta distribution
    way to generate the Beta distribution is by Pólya urn model. According to this method, one start with an "urn" with α "black" balls and β "white" balls...
    245 KB (40,559 words) - 20:35, 30 June 2025
  • variables that are not statistically independent, for example the Pólya urn model. A random variable X has a Bernoulli distribution if Pr(X = 1) = p...
    18 KB (2,571 words) - 11:09, 17 April 2025
  • mappings without needing grammatical structure. Using the Price equation and Pólya urn dynamics, researchers have created a system which not only predicts future...
    13 KB (1,171 words) - 21:49, 23 June 2025
  • Thumbnail for Barabási–Albert model
    its first appearance in 1923 in the celebrated urn model of the Hungarian mathematician György Pólya in 1923. The master equation method, which yields...
    21 KB (2,744 words) - 03:34, 4 June 2025
  • Thumbnail for Dirichlet process
    process is as a modified Pólya urn scheme sometimes called the Blackwell–MacQueen sampling scheme. Imagine that we start with an urn filled with α {\displaystyle...
    32 KB (4,861 words) - 22:31, 25 January 2024
  • Thumbnail for Disparity filter algorithm of weighted network
    be a particular case of the Pólya Filter (built around the famous combinatorial scheme known as the Pólya Urn). The Pólya Filter is able to adapt the...
    8 KB (985 words) - 01:10, 28 December 2024
  • an urn, then replaced in the urn along with an additional ball of the same color, simulating the probabilistic nature of tag reuse. This simple model, however...
    22 KB (2,827 words) - 18:37, 28 May 2025
  • a year earlier by Fred Hoppe, using an "urn scheme" akin to Pólya's urn. In comparison with Hoppe's urn model, the Chinese restaurant process has the...
    24 KB (3,990 words) - 10:53, 6 December 2024
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    Blackwell, David; MacQueen, James B. (1973). "Ferguson distributions via Polya urn schemes". Ann. Stat. 1 (2): 353–355. doi:10.1214/aos/1176342372. A. Gelman;...
    49 KB (7,756 words) - 03:37, 9 July 2025
  • \left\{X_{i}\right\}_{i\in \mathbb {N} }} is an exchangeable sequence. This model is called Polya's urn. Let ( X , Y ) {\displaystyle (X,Y)} have a bivariate normal...
    17 KB (2,561 words) - 20:51, 5 March 2025
  • Thumbnail for Martingale (probability theory)
    \end{aligned}}} Pólya's urn contains a number of different-coloured marbles; at each iteration a marble is randomly selected from the urn and replaced with...
    23 KB (3,468 words) - 21:44, 29 May 2025
  • "Functional limit theorems for multitype branching processes and generalized Pólya urns". Stochastic Processes and Their Applications. 110 (2): 177–245. doi:10...
    17 KB (2,443 words) - 14:59, 28 March 2025
  • Multivariate Pareto distribution Multivariate Pólya distribution Multivariate probit – redirects to Multivariate probit model Multivariate random variable Multivariate...
    87 KB (8,280 words) - 23:04, 12 March 2025
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    1925–1932 C. Brian Haselgrove mathematician best known for disproving the Pólya conjecture in 1958 Thomas Hayter, bishop of Norwich 1749–61, bishop of London...
    20 KB (1,990 words) - 01:51, 25 June 2025