• Thumbnail for Random walk
    mathematics, a random walk, sometimes known as a drunkard's walk, is a stochastic process that describes a path that consists of a succession of random steps on...
    55 KB (7,651 words) - 19:49, 26 December 2024
  • The random walk hypothesis is a financial theory stating that stock market prices evolve according to a random walk (so price changes are random) and thus...
    11 KB (1,496 words) - 08:32, 6 August 2024
  • A Random Walk Down Wall Street, written by Burton Gordon Malkiel, a Princeton University economist, is a book on the subject of stock markets which popularized...
    3 KB (278 words) - 17:54, 18 October 2024
  • Thumbnail for Loop-erased random walk
    In mathematics, loop-erased random walk is a model for a random simple path with important applications in combinatorics, physics and quantum field theory...
    16 KB (2,458 words) - 20:19, 2 August 2024
  • Random Walk is a 1988 novel by Lawrence Block. It was first published by Tor Books. One day, Guthrie Wagner hears a voice telling him to abandon his life...
    3 KB (363 words) - 13:10, 8 July 2024
  • Thumbnail for Stochastic process
    various categories, which include random walks, martingales, Markov processes, Lévy processes, Gaussian processes, random fields, renewal processes, and...
    168 KB (18,657 words) - 18:24, 31 December 2024
  • is a random walk in which the step-lengths have a stable distribution, a probability distribution that is heavy-tailed. When defined as a walk in a space...
    14 KB (1,484 words) - 02:51, 25 April 2024
  • Thumbnail for Polymer physics
    a random walk, the self-avoiding walk. The simplest possible polymer model is presented by the ideal chain, corresponding to a simple random walk. Experimental...
    22 KB (3,237 words) - 19:07, 18 November 2024
  • higher probabilities. Random walk Monte Carlo methods are a kind of random simulation or Monte Carlo method. However, whereas the random samples of the integrand...
    29 KB (3,126 words) - 05:23, 19 December 2024
  • Thumbnail for Subsurface scattering
    scatter the light path further, hence the name "random walk". Isotropic scattering is simulated by picking random directions evenly along a sphere. Anisotropic...
    10 KB (1,201 words) - 12:20, 18 May 2024
  • Thumbnail for Brownian noise
    signal noise produced by Brownian motion, hence its alternative name of random walk noise. The term "Brown noise" does not come from the color, but after...
    9 KB (1,054 words) - 23:33, 9 November 2024
  • Quantum walks are quantum analogs of classical random walks. In contrast to the classical random walk, where the walker occupies definite states and the...
    18 KB (2,600 words) - 02:49, 21 November 2024
  • a simple random walk in two dimensions, but they start from different points. The simplest way to couple them is simply to force them to walk together...
    6 KB (971 words) - 07:54, 22 June 2024
  • Thumbnail for Brownian motion
    stochastic processes which converge (in the limit) to Brownian motion (see random walk and Donsker's theorem). The Roman philosopher-poet Lucretius' scientific...
    54 KB (7,117 words) - 13:02, 30 November 2024
  • Thumbnail for Randomness
    theory Quantum mechanics Random walk Statistical mechanics Statistics In the 19th century, scientists used the idea of random motions of molecules in the...
    34 KB (4,316 words) - 14:42, 3 December 2024
  • hand) of the game is not independent of the past states. Consider a random walk on the number line where, at each step, the position (call it x) may...
    14 KB (2,429 words) - 21:01, 8 July 2024
  • generally, or random movements around the value that reflects the existing information set. Burton Malkiel, in his influential 1973 work A Random Walk Down Wall...
    23 KB (2,738 words) - 15:48, 23 November 2024
  • the random walk hypothesis. The random walk index (RWI) is a technical indicator that attempts to determine if a stock's price movement is random in nature...
    58 KB (7,266 words) - 14:51, 8 December 2024
  • either of indegree and outdegree can be used for normalization: The left (random-walk) normalized Laplacian matrix is defined as: L rw := D + L = I − D + A...
    45 KB (5,041 words) - 21:18, 27 October 2024
  • one corner Drunkard's walk, a type of random walk in which termination conditions lead to a biased ending state The Drunkard's Walk, a 2008 popular science...
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  • Thumbnail for Bethe lattice
    z=\exp(-2K)} and x {\displaystyle x} is as before. The probability that a random walk on a Bethe lattice of degree z {\displaystyle z} starting at a given...
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  • the segments of each such chain in an ensemble as performing a random walk (or "random flight") in three dimensions, limited only by the constraint that...
    10 KB (1,362 words) - 19:33, 18 March 2024
  • The random walk model of consumption was introduced by economist Robert Hall. This model uses the Euler numerical method to model consumption. He created...
    7 KB (842 words) - 14:22, 15 January 2024
  • Thumbnail for Biased random walk on a graph
    In network science, a biased random walk on a graph is a time path process in which an evolving variable jumps from its current state to one of various...
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  • Random walk closeness centrality is a measure of centrality in a network, which describes the average speed with which randomly walking processes reach...
    8 KB (1,385 words) - 14:57, 17 August 2022
  • The persistent random walk is a modification of the random walk model. A population of particles are distributed on a line, with constant speed c 0 {\displaystyle...
    1 KB (136 words) - 20:42, 20 June 2024
  • Thumbnail for Stock market crash
    instead of following a strict random walk, stock price variations executed a Lévy flight. A Lévy flight is a random walk that is occasionally disrupted...
    33 KB (4,061 words) - 13:44, 3 December 2024
  • Thumbnail for Self-avoiding walk
    higher dimensions, the SAW is believed to behave much like the ordinary random walk. SAWs and SAPs play a central role in the modeling of the topological...
    12 KB (1,490 words) - 21:42, 30 November 2024
  • Thumbnail for Chemotaxis
    swimming in a uniform environment will form a random walk with relatively straight swims interrupted by random tumbles that reorient the bacterium. Bacteria...
    66 KB (7,443 words) - 22:25, 29 September 2024
  • Thumbnail for Diffusion
    A distinguishing feature of diffusion is that it depends on particle random walk, and results in mixing or mass transport without requiring directed bulk...
    58 KB (8,596 words) - 18:49, 29 December 2024