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...
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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...
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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) - 05:39, 16 May 2025
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 (1,502 words) - 08:32, 6 August 2024
Stochastic process (redirect from Random function)
various categories, which include random walks, martingales, Markov processes, Lévy processes, Gaussian processes, random fields, renewal processes, and...
168 KB (18,657 words) - 20:31, 17 May 2025
Lévy flight (redirect from Lévy random walk)
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...
17 KB (1,816 words) - 15:31, 24 February 2025
In mathematics, loop-erased random walk is a model for a random simple path with important applications in combinatorics, physics and quantum field theory...
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probability theory, a branching random walk is a stochastic process that generalizes both the concept of a random walk and of a branching process. At every...
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Markov chain Monte Carlo (redirect from Random walk Monte Carlo)
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...
62 KB (8,537 words) - 04:54, 19 May 2025
quantum walk search is a quantum algorithm for finding a marked node in a graph. The concept of a quantum walk is inspired by classical random walks, in which...
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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...
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Brownian motion (redirect from Random motion)
stochastic processes which converge (in the limit) to Brownian motion (see random walk and Donsker's theorem). The Roman philosopher-poet Lucretius' scientific...
55 KB (7,140 words) - 01:57, 7 May 2025
theory Quantum mechanics Random walk Statistical mechanics Statistics In the 19th century, scientists used the idea of random motions of molecules in the...
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Maximal entropy random walk (MERW) is a popular type of biased random walk on a graph, in which transition probabilities are chosen accordingly to the...
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Brownian noise (redirect from Random walk 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) - 09:22, 23 April 2025
Coupling (probability) (section Random walk)
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...
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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...
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Chemotaxis (redirect from Biased random walk (biochemistry))
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 (7,445 words) - 06:58, 6 January 2025
Wiener process (redirect from Brownian walk)
random walk, or other discrete-time stochastic processes with stationary independent increments. This is known as Donsker's theorem. Like the random walk...
35 KB (5,874 words) - 16:55, 16 May 2025
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...
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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 (5,042 words) - 19:15, 16 May 2025
Technical analysis (section Random walk hypothesis)
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...
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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 (2,405 words) - 17:52, 29 March 2025
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...
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Stock market crash (section Random walk theory)
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...
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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
for Functionals of Random Walks. AMS Bookstore. Theorem 1.1, p. 8. ISBN 0-8218-0438-3. Petrov, V. V. (1976). Sums of Independent Random Variables. New York-Heidelberg:...
67 KB (9,171 words) - 16:52, 28 April 2025
Subsurface scattering (section Random walk SSS)
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
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...
7 KB (998 words) - 05:19, 9 June 2024