Results 11 to 20 of about 345,922 (215)
Random fields and random sampling [PDF]
Kybernetika, 2020 The authors study the limit in distribution of the maximum of a stationary bivariate real random field, sampled at double random times under some dependence conditions. It is shown that the limit distribution is a max-semistable distribution when the random samples have a geometric growth pattern. When the random field is sampled at double random times,
Sandra Dias, Maria da Graça Temido
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Computers & Chemical Engineering, 2022 We present a new modeling paradigm for optimization that we call random field optimization. Random fields are a powerful modeling abstraction that aims to capture the behavior of random variables that live on infinite-dimensional spaces (e.g., space and time) such as stochastic processes (e.g., time series, Gaussian processes, and Markov processes ...
Joshua L. Pulsipher +2 more
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ULTRAMETRIC RANDOM FIELD [PDF]
Infinite Dimensional Analysis, Quantum Probability and Related Topics, 2006 Gaussian random field on general ultrametric space is introduced as a solution of pseudodifferential stochastic equation. Covariation of the introduced random field is computed with the help of wavelet analysis on ultrametric spaces. Notion of ultrametric Markovianity, which describes independence of contributions to random field from different ...
Khrennikov, A. Yu., Kozyrev, S. V.
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Discriminative Random Fields [PDF]
International Journal of Computer Vision, 2006 In this research we address the problem of classification and labeling of regions given a single static natural image. Natural images exhibit strong spatial dependencies, and modeling these dependencies in a principled manner is crucial to achieve good classification accuracy.
Sanjiv Kumar, Martial Hebert
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Random-energy model in random fields [PDF]
Physical Review E, 2006 The random-energy model is studied in the presence of random fields. The problem is solved exactly both in the microcanonical ensemble, without recourse to the replica method, and in the canonical ensemble using the replica formalism. The phase diagrams for bimodal and Gaussian random fields are investigated in detail. In contrast to the Gaussian case,
Filho, Luiz O. de Oliveira +2 more
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Cesàro Summation for Random Fields [PDF]
Journal of Theoretical Probability, 2009 12pages
Gut, Allan, Stadtmüller, Ulrich
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Probability Theory and Related Fields, 2023 We study how the typical gradient and typical height of a random surface are modified by the addition of quenched disorder in the form of a random independent external field. The results provide quantitative estimates, sharp up to multiplicative constants, in the following cases.
Paul Dario, Matan Harel, Ron Peled
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On the field dependence of random walks in the presence of random fields [PDF]
Journal of Statistical Physics, 1988 Numerical simulations and scaling arguments are used to study the field dependence of a random walk in a one-dimensional system with a bias field on each site. The bias is taken randomly with equal probability to be +E or −E. The probability density¯P(x, t) is found to scale asymptotically as $$\left\{ {[A(E)]^{\beta /2} /\ln ^2 t} \right\}\exp ...
Bunde A. +4 more
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Inducing features of random fields [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1997 34 pages, compressed ...
Stephen Della Pietra +2 more
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Journal of Theoretical Probability, 2009 In some earlier work we have considered extensions of Lai's (1974) law of the single logarithm for delayed sums to a multiindex setting with the same as well as different expansion rates in the various dimensions. A further generalization concerns window sizes that are regularly varying with index 1 (on the line).
Gut, Allan, Stadtmüller, Ulrich
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