Results 11 to 20 of about 5,578,868 (115)
Random walk centrality for temporal networks [PDF]
New Journal of Physics, 2014 Nodes can be ranked according to their relative importance within a network. Ranking algorithms based on random walks are particularly useful because they connect topological and diffusive properties of the network. Previous methods based on random walks,
Luis E C Rocha, Naoki Masuda
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Transferring principles of solid-state and Laplace NMR to the field of in vivo brain MRI [PDF]
Magnetic Resonance, 2020 Magnetic resonance imaging (MRI) is the primary method for noninvasive investigations of the human brain in health, disease, and development but yields data that are difficult to interpret whenever the millimeter-scale voxels contain multiple microscopic
J. P. de Almeida Martins +10 more
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Matrix moments of the diffusion tensor distribution and matrix-variate Gamma approximation
Journal of Magnetic Resonance Open, 2021 Diffusion MRI allows for the non-invasive investigation of the microscopic architecture of biological tissues in vivo. While being sensitive to microstructural tissue changes, diffusion MRI yields poor specificity regarding the cause of these changes ...
Alexis Reymbaut
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P2 random walk: self-supervised anomaly detection with pixel-point random walk
Complex & 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
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Directivity of Quantum Walk via Its Random Walk Replica
Complexity, 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
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Application of random walk to model temperature in 60 African cities for the 20th century [PDF]
E3S 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
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Atmosphere, 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
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A Semi-Deterministic Random Walk with Resetting
Entropy, 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
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A phase transition in the random transposition random walk [PDF]
Discrete Mathematics & Theoretical Computer Science, 2003 Our work is motivated by Bourque-Pevzner's simulation study of the effectiveness of the parsimony method in studying genome rearrangement, and leads to a surprising result about the random transposition walk in continuous time on the group of ...
Nathanael Berestycki, Rick Durrett
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Learning Random-Walk Label Propagation for Weakly-Supervised Semantic Segmentation [PDF]
Computer 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
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