Results 21 to 30 of about 124,658 (311)

Directed random walk with random restarts: The Sisyphus random walk [PDF]

open access: yesPhysical Review E, 2016
In this paper we consider a particular version of the random walk with restarts: random reset events which suddenly bring the system to the starting value. We analyze its relevant statistical properties, like the transition probability, and show how an equilibrium state appears.
Montero Torralbo, Miquel   +1 more
openaire   +3 more sources

A Review of Random Walk-Based Method for the Identification of Disease Genes and Disease Modules

open access: yesIEEE Access, 2023
Traditional techniques for identifying disease genes and disease modules involve high-cost clinical experiments and unpredictable time consumption for analysis.
Tay Xin Hui   +9 more
doaj   +1 more source

Dirichlet Random Walks [PDF]

open access: yesJournal of Applied Probability, 2014
This paper provides tools for the study of the Dirichlet random walk in Rd. We compute explicitly, for a number of cases, the distribution of the random variable W using a form of Stieltjes transform of W instead of the Laplace transform, replacing the Bessel functions with hypergeometric functions. This enables us to simplify some existing results, in
G. Letac, PICCIONI, MAURO
openaire   +5 more sources

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

Greedy Random Walk [PDF]

open access: yesCombinatorics, Probability and Computing, 2013
We study a discrete time self-interacting random process on graphs, which we call greedy random walk. The walker is located initially at some vertex. As time evolves, each vertex maintains the set of adjacent edges touching it that have not yet been crossed by the walker.
Orenshtein T., Shinkar I.
openaire   +3 more sources

Re-examining analyst superiority in forecasting results of publicly-traded brazilian companies / Reexaminando a superioridade dos analistas ao preverem resultados de empresas brasileiras de capital aberto

open access: yesRAM. Revista de Administração Mackenzie, 2021
Purpose: This research examines the superiority of analysts over random walk models in forecasting the results of publicly-traded Brazilian companies in the short and long term. Originality/value: The literature indicates the uncontested superiority
Rafael C. Gatsios   +3 more
doaj   +1 more source

On random walks and switched random walks on homogeneous spaces

open access: yesCombinatorics, Probability and Computing, 2022
AbstractWe prove new mixing rate estimates for the random walks on homogeneous spaces determined by a probability distribution on a finite group$G$. We introduce the switched random walk determined by a finite set of probability distributions on$G$, prove that its long-term behaviour is determined by the Fourier joint spectral radius of the ...
Elvira Moreno, Mauricio Velasco
openaire   +3 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

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

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

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