Results 11 to 20 of about 3,867,002 (189)

Analysis of Land Use Change and Driving Mechanisms in Vietnam during the Period 2000–2020

open access: yesRemote Sensing, 2022
High-accuracy, long-time-series and large-scale land classification mapping are essential for assessing the evolutionary patterns of land systems and developing sustainability studies.
Xuan Guo, Junzhi Ye, Yunfeng Hu
doaj   +1 more source

Analysis on Land-Use Change and Its Driving Mechanism in Xilingol, China, during 2000–2020 Using the Google Earth Engine

open access: yesRemote Sensing, 2021
Large-scale, long time-series, and high-precision land-use mapping is the basis for assessing the evolution and sustainability of ecosystems in Xilingol, the Inner Mongolia Autonomous Region, China.
Junzhi Ye   +4 more
doaj   +1 more source

Effect of random time changes on Loewner hulls [PDF]

open access: yesRevista Matemática Iberoamericana, 2019
Loewner hulls are determined by their real-valued driving functions. We study the geometric effect on the Loewner hulls when the driving function is composed with a random time change, such as the inverse of an \alpha -stable subordinator.
Kobayashi, Kei   +2 more
openaire   +3 more sources

Optimal Linear Filtering for Networked Control Systems With Random Matrices, Correlated Noises, and Packet Dropouts

open access: yesIEEE Access, 2020
In this paper, the optimal linear filtering problem for linear discrete-time stochastic systems with random matrices, correlated noises and packet dropouts is studied where the random matrices are real and appear both in the the state and measurement ...
Wei Liu   +4 more
doaj   +1 more source

A Continuous-Time Random Walk Extension of the Gillis Model

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   +1 more source

Rank diversity of languages: generic behavior in computational linguistics. [PDF]

open access: yesPLoS ONE, 2015
Statistical studies of languages have focused on the rank-frequency distribution of words. Instead, we introduce here a measure of how word ranks change in time and call this distribution rank diversity. We calculate this diversity for books published in
Germinal Cocho   +4 more
doaj   +1 more source

Random walks at random times: Convergence to iterated L\'{e}vy motion, fractional stable motions, and other self-similar processes [PDF]

open access: yes, 2013
For a random walk defined for a doubly infinite sequence of times, we let the time parameter itself be an integer-valued process, and call the orginal process a random walk at random time.
Jung, Paul, Markowsky, Greg
core   +1 more source

Local Interaction on Random Graphs

open access: yesGames, 2010
We analyze dynamic local interaction in population games where the local interaction structure (modeled as a graph) can change over time: A stochastic process generates a random sequence of graphs. This contrasts with models where the initial interaction
Hans Haller, Siegfried Berninghaus
doaj   +1 more source

Forecasting green roof detention performance by temporal downscaling of precipitation time-series projections [PDF]

open access: yesHydrology and Earth System Sciences, 2022
A strategy to evaluate the suitability of different multiplicative random cascades to produce rainfall time series, taking into account climate change, inputs for green infrastructures models. The multiplicative random cascades reproduce a (multi)fractal
V. Pons   +5 more
doaj   +1 more source

Stochastic arbitrage return and its implications for option pricing [PDF]

open access: yes, 2004
The purpose of this work is to explore the role that arbitrage opportunities play in pricing financial derivatives. We use a non-equilibrium model to set up a stochastic portfolio, and for the random arbitrage return, we choose a stationary ergodic ...
Fedotov, Sergei, Panayides, Stephanos
core   +3 more sources

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