Results 41 to 50 of about 3,983,437 (321)

Residuals and goodness-of-fit tests for stationary marked Gibbs point processes [PDF]

open access: yes, 2010
The inspection of residuals is a fundamental step to investigate the quality of adjustment of a parametric model to data. For spatial point processes, the concept of residuals has been recently proposed by Baddeley et al.
Andersen   +33 more
core   +7 more sources

Prediction of user temporal interactions with online course platforms using deep learning algorithms

open access: yesComputers and Education: Artificial Intelligence, 2023
The analysis of learning interactions during online studying is a necessary task for designing online courses and sequencing key interactions, which enables online learning platforms to provide users with more efficient and personalized service. However,
Junru Ren, Shaomin Wu
doaj   +1 more source

Invariance principle for Mott variable range hopping and other walks on point processes [PDF]

open access: yes, 2010
We consider a random walk on a homogeneous Poisson point process with energy marks. The jump rates decay exponentially in the A-power of the jump length and depend on the energy marks via a Boltzmann--like factor.
Caputo, P., Faggionato, A., Prescott, T.
core   +3 more sources

A Two-Layer Marked Point Process Framework for Multilevel Object Population Analysis [PDF]

open access: yes, 2013
In this paper we introduce a probabilistic approach for extracting object ensembles from various digital images used by machine vision applications.
Benedek, Csaba
core   +1 more source

Random walks in a one-dimensional L\'evy random environment [PDF]

open access: yes, 2016
We consider a generalization of a one-dimensional stochastic process known in the physical literature as L\'evy-Lorentz gas. The process describes the motion of a particle on the real line in the presence of a random array of marked points, whose nearest-
Bianchi, Alessandra   +3 more
core   +2 more sources

LIBRJMCMC: AN OPEN-SOURCE GENERIC C++ LIBRARY FOR STOCHASTIC OPTIMIZATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The librjmcmc is an open source C++ library that solves optimization problems using a stochastic framework. The library is primarily intended for but not limited to research purposes in computer vision, photogrammetry and remote sensing, as it
M. Brédif, O. Tournaire, O. Tournaire
doaj   +1 more source

A Versatile Stochastic Duel Game

open access: yesMathematics, 2020
This paper deals with a standard stochastic game model with a continuum of states under the duel-type setup. It newly proposes a hybrid model of game theory and the fluctuation process, which could be applied for various practical decision making ...
Song-Kyoo (Amang) Kim
doaj   +1 more source

Bias-Correction and Test for Mark-Point Dependence with Replicated Marked Point Processes

open access: yesJournal of the American Statistical Association, 2022
Mark-point dependence plays a critical role in research problems that can be fitted into the general framework of marked point processes. In this work, we focus on adjusting for mark-point dependence when estimating the mean and covariance functions of the mark process, given independent replicates of the marked point process.
Ganggang Xu   +3 more
openaire   +2 more sources

Catastrophe Insurance Modeled by Shot-Noise Processes

open access: yesRisks, 2014
Shot-noise processes generalize compound Poisson processes in the following way: a jump (the shot) is followed by a decline (noise). This constitutes a useful model for insurance claims in many circumstances; claims due to natural disasters or self ...
Thorsten Schmidt
doaj   +1 more source

Convergence rates for the homogenization of the Poisson problem in randomly perforated domains

open access: yesNetworks and Heterogeneous Media, 2021
In this paper we provide converge rates for the homogenization of the Poisson problem with Dirichlet boundary conditions in a randomly perforated domain of \begin{document}$ \mathbb{R}^d $\end{document}, \begin{document}$ d \geqslant 3 $\end{document}.
Arianna Giunti
doaj   +1 more source

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