Results 31 to 40 of about 19,837,870 (284)
Growth Curves Modelling and Its Application
Engineering Proceedings, 2023 In this article, we compare two ways of modelling measures of fetal growth. The goal is to impute the missing information for certain ultrasound measurements that are observed at different times and with different numbers of observations.
Ana García-Burgos +5 more
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A tutorial on inverse problems for anomalous diffusion processes [PDF]
, 2015 Over the last two decades, anomalous diffusion processes in which the mean squares variance grows slower or faster than that in a Gaussian process have found many applications.
Bangti Jin, W. Rundell
semanticscholar +1 more source
On learning optimized reaction diffusion processes for effective image restoration [PDF]
Computer Vision and Pattern Recognition, 2015 For several decades, image restoration remains an active research topic in low-level computer vision and hence new approaches are constantly emerging. However, many recently proposed algorithms achieve state-of-the-art performance only at the expense of ...
Yunjin Chen, Wei Yu, T. Pock
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Latency-Bounded Target Set Selection in Signed Networks
Algorithms, 2020 It is well-documented that social networks play a considerable role in information spreading. The dynamic processes governing the diffusion of information have been studied in many fields, including epidemiology, sociology, economics, and computer ...
Miriam Di Ianni, Giovanna Varricchio
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Quadrinomial trees with stochastic volatility to value real options [PDF]
Journal of Economics Finance and Administrative Science, 2021 Purpose – The purpose of this article is to propose a detailed methodology to estimate, model and incorporate the non-constant volatility onto a numerical tree scheme, to evaluate a real option, using a quadrinomial multiplicative recombination.
Freddy H. Marín-Sánchez +2 more
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Well-posedness of Multidimensional Diffusion Processes with Weakly Differentiable Coefficients [PDF]
, 2015 We investigate well-posedness for martingale solutions of stochastic differential equations, under low regularity assumptions on their coefficients, widely extending some results first obtained by A. Figalli.
Dario Trevisan
semanticscholar +1 more source
Fractal and Fractional, 2019 New aspects of electron transport in quantum wires with Lévy-type disorder are described. We study the weak scattering and the incoherent sequential tunneling in one-dimensional quantum systems characterized by a tempered Lévy stable ...
Renat T. Sibatov, HongGuang Sun
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Network Models and Simulation Analytics for Multi-scale Dynamics of Biological Invasions
Frontiers in Big Data, 2022 Globalization and climate change facilitate the spread and establishment of invasive species throughout the world via multiple pathways. These spread mechanisms can be effectively represented as diffusion processes on multi-scale, spatial networks.
Abhijin Adiga +6 more
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Reaction-diffusion processes with nonlinear diffusion [PDF]
Physical Review E, 2012 We study reaction-diffusion processes with concentration-dependent diffusivity. First, we determine the decay of the concentration in the single-species and two-species diffusion-controlled annihilation processes. We then consider two natural inhomogeneous realizations.
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ANOVA for diffusions and Itô processes [PDF]
The Annals of Statistics, 2006 It processes are the most common form of continuous semimartingales, and include diffusion processes. This paper is concerned with the nonparametric regression relationship between two such It processes. We are interested in the quadratic variation (integrated volatility) of the residual in this regression, over a unit of time (such as a day).
Mykland, Per Aslak, Zhang, Lan
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