Results 31 to 40 of about 702,219 (333)

Local Random Walk Based Label Propagation Algorithm [PDF]

open access: yesJisuanji kexue, 2022
Community structure is one of the important characteristics of complex networks.Identifying communities of different functions in a network plays an important role for revealing important characteristics of complex networks.The community discovery ...
LIU Yang, ZHENG Wen-ping, ZHANG Chuan, WANG Wen-jian
doaj   +1 more source

Random-walk enzymes

open access: yesPhysical Review E, 2015
Enzymes that rely on random walk to search for substrate targets in a heterogeneously dispersed medium can leave behind complex spatial profiles of their catalyzed conversions. The catalytic signatures of these random-walk enzymes are the result of two coupled stochastic processes: scanning and catalysis. Here we develop analytical models to understand
Chi H, Mak   +3 more
openaire   +3 more sources

Tracking random walks [PDF]

open access: yesJournal of The Royal Society Interface, 2018
In empirical studies, trajectories of animals or individuals are sampled in space and time. Yet, it is unclear how sampling procedures bias the recorded data. Here, we consider the important case of movements that consist of alternating rests and moves of random durations and study how the estimate of their statistical properties is affected by the way
Gallotti, Riccardo   +3 more
openaire   +5 more sources

Correlated Random Walks

open access: yesThe Annals of Probability, 1984
We consider random walks on lattices with finite memory and a finite number of possible steps. Using a local limit theorem, we generalize Polya's theorem to such walks, describe how to compute tail probabilities when the number of steps is large, and obtain asymptotic estimates for the average number of points visited.
Bender, Edward A., Richmond, L. Bruce
openaire   +2 more sources

Random Walks with Invariant Loop Probabilities: Stereographic Random Walks [PDF]

open access: yesEntropy, 2021
Random walks with invariant loop probabilities comprise a wide family of Markov processes with site-dependent, one-step transition probabilities. The whole family, which includes the simple random walk, emerges from geometric considerations related to the stereographic projection of an underlying geometry into a line.
openaire   +4 more sources

Random walk over a hypersphere

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
In a recent paper the author had shown that a special case of S. M. Joshi transform (so named after the author's reverent father) of distributions (Sba f)(x)=〈f(y),  lFl(a0;b0;ixy)  lFl(a;b;−2ixy)〉 is a characteristic function of a spherical ...
J. M. C. Joshi
doaj   +1 more source

A random walk down Main Street

open access: yesTeMA: Journal of Land Use, Mobility and Environment, 2016
US suburbs have often been characterized by their relatively low walk accessibility compared to more urban environments, and US urban environments have been char- acterized by low walk accessibility compared to cities in other countries.
David Matthew Levinson
doaj   +1 more source

Adjusting the Trapping Process of a Directed Weighted Edge-Iteration Network

open access: yesFrontiers in Physics, 2022
Controlling the trapping process is one of the important themes in the study of random walk in real complex systems. We studied two types of random walks that are different from the traditional random walk on a directed weighted network.
Jing Su   +7 more
doaj   +1 more source

Strategies and first-absorption times in the random walk game [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2023
Purpose of this work is to determine the average time to reach the boundaries, as well as to identify the strategy in the game between two players, controlling point movements on the finite square lattice using an independent choice of strategies.
Krivonosov, Mikhail Igorevich   +1 more
doaj   +1 more source

Convergence of dependent walks in a random scenery to fBm-local time fractional stable motions [PDF]

open access: yes, 2008
It is classical to approximate the distribution of fractional Brownian motion by a renormalized sum $ S_n $ of dependent Gaussian random variables. In this paper we consider such a walk $ Z_n $ that collects random rewards $ \xi_j $ for $ j \in \mathbb Z,
Cohen, Serge, Dombry, Clément
core   +3 more sources

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