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Eligibility Propagation to Speed up Time Hopping for Reinforcement Learning [PDF]

open access: green, 2009
A mechanism called Eligibility Propagation is proposed to speed up the Time Hopping technique used for faster Reinforcement Learning in simulations. Eligibility Propagation provides for Time Hopping similar abilities to what eligibility traces provide ...
Dong, Fangyan   +3 more
core   +3 more sources

Cladode size and collection time for pitahaya propagation [PDF]

open access: goldCiência e Agrotecnologia, 2021
Cutting is a propagation method with the advantages of early production and uniform cultivation. Some factors influence propagation and rooting, such as the cutting size and the time of year the collection is performed.
Maria Gabriela Fontanetti Rodrigues   +5 more
doaj   +2 more sources

From meteorological to agricultural drought: Propagation time and probabilistic linkages

open access: yesJournal of Hydrology: Regional Studies, 2023
Study region: Yangtze River Basin, China Study focus: As agricultural drought originates from meteorological drought, exploring the propagation from meteorological to agricultural drought is an important step in providing early warning of agricultural ...
Zhengguang Xu   +4 more
doaj   +3 more sources

Study on the propagation law of meteorological drought to hydrological drought under variable time Scale: An example from the Yellow River Water Supply Area in Henan

open access: yesEcological Indicators, 2023
To study the propagation law of meteorological droughts to hydrological droughts under variable time scales, and to reveal the synchronisation gap and lag time of hydrological droughts compared to meteorological droughts, and the lag degree of ...
Fang Wan   +4 more
doaj   +3 more sources

Connected zero forcing sets and connected propagation time of graphs [PDF]

open access: yesTransactions on Combinatorics, 2020
The zero forcing number $Z(G)$ of a graph $G$ is the minimum cardinality of a set $S$ with colored (black) vertices which forces the set $V(G)$ to be colored (black) after some times.
Maryam Khosravi   +2 more
doaj   +1 more source

Characterization of Parasitic Impedance in PCB Using a Flexible Test Probe Based on a Curve-Fitting Method

open access: yesIEEE Access, 2021
Switching in power semiconductors with emerging materials such as silicon carbide (SiC) leads to undesired overvoltages and oscillations that limit switching frequency, largely due to impedance in the current commutation loop.
A. Llamazares   +2 more
doaj   +1 more source

Demonstration of propagation-invariant 3D space-time wave packets [PDF]

open access: yesEPJ Web of Conferences, 2022
We present the first demonstration of propagation-invariant space-time (ST) wave packets localized in all dimensions - 2D space and 1D time. By introducing orbital-angular-momentum into the wave packets, we produce propagation-invariant ST-OAM wave ...
Yessenov Murat   +6 more
doaj   +1 more source

Investigation of the propagation of meteorological to hydrological drought and water required to recover from drought over Ethiopian basins

open access: yesJournal of Water and Climate Change, 2023
This study investigates drought propagation from meteorological to hydrological and streamflow required to recover from drought in four sub-basins: Genale, Tekeze, Awash, and Baro basins of Ethiopia.
Tegegn Kassa Beyene   +3 more
doaj   +1 more source

Modeling HF Radio Wave Propagation in 3D Non-Uniform Ionosphere With Smooth Perturbation Method

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
An asymptotic solution of ray equations is used for numerical simulation of the electromagnetic wave propagation in a smoothly non-uniform Earth-ionosphere duct.
Alexei V. Popov
doaj   +1 more source

Reliable Time Propagation Algorithms for PMF and RBPMF

open access: yesSensors, 2021
This paper addresses the reliable time propagation algorithms for Point Mass Filter (PMF) and Rao–Blackwellized PMF (RBPMF) for the nonlinear estimaton problem.
Chang-Ky Sung, Sang Jeong Lee
doaj   +1 more source

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