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Continuous Time Random Walk with Correlated Waiting Times. The Crucial Role of Inter-Trade Times in Volatility Clustering [PDF]

open access: yesEntropy, 2021
In many physical, social, and economic phenomena, we observe changes in a studied quantity only in discrete, irregularly distributed points in time. The stochastic process usually applied to describe this kind of variable is the continuous-time random ...
Jarosław Klamut, Tomasz Gubiec
doaj   +2 more sources

A Continuous-Time Random Walk Extension of the Gillis Model [PDF]

open access: yesEntropy, 2020
We consider a continuous-time random walk which is the generalization, by means of the introduction of waiting periods on sites, of the one-dimensional non-homogeneous random walk with a position-dependent drift known in the mathematical literature as ...
Gaia Pozzoli   +3 more
doaj   +2 more sources

Using approximate Bayesian inference for a “steps and turns” continuous-time random walk observed at regular time intervals [PDF]

open access: yesPeerJ, 2020
The study of animal movement is challenging because movement is a process modulated by many factors acting at different spatial and temporal scales.
Sofia Ruiz-Suarez   +3 more
doaj   +3 more sources

Continuous Time Random Walks (CTRWs): Simulation of continuous trajectories [PDF]

open access: yesPhysical Review E, 2007
Continuous time random walks have been developed as a straightforward generalisation of classical random walk processes. Some 10 years ago, Fogedby introduced a continuous representation of these processes by means of a set of Langevin equations [H.
Friedrich, R., Kleinhans, D.
core   +3 more sources

Continuous-time random walk model for the diffusive motion of helicases [PDF]

open access: yesQRB Discovery
DNA helicases are molecular motors that use the energy from nucleotide hydrolysis to move along DNA, promoting the unwinding or rewinding of the double helix.
Victor Rodríguez-Franco   +4 more
doaj   +2 more sources

A Directed Continuous Time Random Walk Model with Jump Length Depending on Waiting Time [PDF]

open access: yesThe Scientific World Journal, 2014
In continuum one-dimensional space, a coupled directed continuous time random walk model is proposed, where the random walker jumps toward one direction and the waiting time between jumps affects the subsequent jump.
Long Shi, Zuguo Yu, Zhi Mao, Aiguo Xiao
doaj   +2 more sources

Large Deviations for Continuous Time Random Walks [PDF]

open access: yesEntropy, 2020
Recently observation of random walks in complex environments like the cell and other glassy systems revealed that the spreading of particles, at its tails, follows a spatial exponential decay instead of the canonical Gaussian.
Wanli Wang, Eli Barkai, Stanislav Burov
doaj   +4 more sources

Parsimonious Continuous Time Random Walk Models and Kurtosis for Diffusion in Magnetic Resonance of Biological Tissue [PDF]

open access: yesFrontiers in Physics, 2015
In this paper, we provide a context for the modeling approaches that have been developed to describe non-Gaussian diffusion behavior, which is ubiquitous in diffusion weighted magnetic resonance imaging of water in biological tissue.
Carson eIngo   +5 more
doaj   +2 more sources

Stochastic modeling of injection induced seismicity based on the continuous time random walk model [PDF]

open access: yesScientific Reports
The spatiotemporal evolution of earthquakes induced by fluid injections into the subsurface can be erratic owing to the complexity of the physical process.
Georgios Michas, Filippos Vallianatos
doaj   +2 more sources

Record Statistics of Continuous Time Random Walk [PDF]

open access: yesEPL (Europhysics Letters), 2011
The statistics of records for a time series generated by a continuous time random walk is studied, and found to be independent of the details of the jump length distribution, as long as the latter is continuous and symmetric.
Sabhapandit, Sanjib
core   +3 more sources

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