Results 11 to 20 of about 4,476,990 (351)

Random walks on hypergraphs [PDF]

open access: yesPhysical Review E, 2020
In the last twenty years network science has proven its strength in modelling many real-world interacting systems as generic agents, the nodes, connected by pairwise edges. Yet, in many relevant cases, interactions are not pairwise but involve larger sets of nodes, at a time.
Carletti, Timoteo   +3 more
openaire   +9 more sources

Diffusivity of a random walk on random walks [PDF]

open access: yesRandom Structures & Algorithms, 2014
We consider a random walk $(Z^{(1)}_n, ..., Z^{(K+1)}_n) \in \mathbb{Z}^{K+1}$ with the constraint that each coordinate of the walk is at distance one from the following one. In this paper, we show that this random walk is slowed down by a variance factor $ _K^2 = \frac{2}{K+2}$ with respect to the case of the classical simple random walk without ...
Boissard, Emmanuel   +3 more
openaire   +4 more sources

P2 random walk: self-supervised anomaly detection with pixel-point random walk

open access: yesComplex & Intelligent Systems, 2023
In the domain of intelligent manufacturing, automatic anomaly detection plays a pivotal role and holds great significance for improving production efficiency and product quality.
Liujie Hua, Qianqian Qi, Jun Long
doaj   +1 more source

Application of random walk to model temperature in 60 African cities for the 20th century [PDF]

open access: yesE3S Web of Conferences, 2021
The 20th century is marked with climate change led by global warming. So far, many models have been applied to analyze the temperature change. However, a simple but interesting model, a random walk is hardly used in his regard.
Yan Shaomin, Wu Guang
doaj   +1 more source

Random walk on random walks: higher dimensions [PDF]

open access: yesElectronic Journal of Probability, 2019
We study the evolution of a random walker on a conservative dynamic random environment composed of independent particles performing simple symmetric random walks, generalizing results of [16] to higher dimensions and more general transition kernels without the assumption of uniform ellipticity or nearest-neighbour jumps.
Soares dos Santos, Renato   +4 more
openaire   +7 more sources

Directivity of Quantum Walk via Its Random Walk Replica

open access: yesComplexity, 2022
Quantum walks (QWs) exhibit different properties compared with classical random walks (RWs), most notably by linear spreading and localization. In the meantime, random walks that replicate quantum walks, which we refer to as quantum-walk-replicating ...
Tomoki Yamagami   +5 more
doaj   +1 more source

A Semi-Deterministic Random Walk with Resetting

open access: yesEntropy, 2021
We consider a discrete-time random walk (xt) which, at random times, is reset to the starting position and performs a deterministic motion between them. We show that the quantity Prxt+1=n+1|xt=n,n→∞ determines if the system is averse, neutral or inclined
Javier Villarroel   +2 more
doaj   +1 more source

Learning Random-Walk Label Propagation for Weakly-Supervised Semantic Segmentation [PDF]

open access: yesComputer Vision and Pattern Recognition, 2017
Large-scale training for semantic segmentation is challenging due to the expense of obtaining training data for this task relative to other vision tasks. We propose a novel training approach to address this difficulty. Given cheaply-obtained sparse image
Paul Vernaza, Manmohan Chandraker
semanticscholar   +1 more source

Long-Term Air Quality Study in Fairbanks, Alaska: Air Pollutant Temporal Variations, Correlations, and PM2.5 Source Apportionment

open access: yesAtmosphere, 2020
As one of the most polluted U.S. cities, Fairbanks was reclassified as a “serious” nonattainment area by the Environmental Protection Agency (EPA) in 2017 for its fine particulate matter (PM2.5) pollution.
Lexuan Ye, Yungang Wang
doaj   +1 more source

Random Infinite Permutations and the Cyclic Time Random Walk [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
The random stirring process is a natural random walk on the set of permutations of the vertex set of a graph. The cyclic time random walk is a self interacting random walk on a graph.
Omer Angel
doaj   +1 more source

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