Results 21 to 30 of about 3,867,002 (189)

Random Forest Winter Wheat Extraction Algorithm Based on Spatial Features of Neighborhood Samples

open access: yesMathematics, 2022
In order to effectively obtain the winter wheat growing area in a large part of the Guanzhong plain, this paper proposes a random forest Guanzhong plain winter wheat extraction algorithm based on spatial features of neighborhood samples using the 250 m ...
Nayi Wang   +3 more
doaj   +1 more source

Asymptotic behaviour of random Markov chains with tridiagonal generators [PDF]

open access: yes, 2012
Continuous-time discrete-state random Markov chains generated by a random linear differential equation with a random tridiagonal matrix are shown to have a random attractor consisting of singleton subsets, essentially a random path, in the simplex of ...
Allen   +9 more
core   +1 more source

PSEUDO RANDOM NUMBER GENERATION USING EYE BRIGHTNESS RESPONSE

open access: yesICTACT Journal on Communication Technology, 2018
Random numbers play an important and primary role in the use of Cryptography techniques in real time applications. The cryptographic techniques can be easily compromised if the key can be easily guessed.
T Sivakumar, T Anusha
doaj   +1 more source

Bayesian sequential change diagnosis [PDF]

open access: yes, 2007
Sequential change diagnosis is the joint problem of detection and identification of a sudden and unobservable change in the distribution of a random sequence. In this problem, the common probability law of a sequence of i.i.d.
Dayanik, Savas   +2 more
core   +4 more sources

STUDY OF INDICATORS OF EFFICIENCY OF OPERATION OF MEANS OF MEASUREMENTS BY THE METHOD OF COMPUTER SIMULATION

open access: yesАвіаційно-космічна техніка та технологія, 2020
The operational efficiency of measuring equipment (ME) is important in determining the cost of maintaining ME. To characterize the operational efficiency of the ME, an efficiency indicator has been introduced, an increase of which will reduce costs ...
Олександр Володимирович Томашевський   +1 more
doaj   +1 more source

Random time-change with inverses of multivariate subordinators: governing equations and fractional dynamics

open access: yes, 2020
It is well-known that compositions of Markov processes with inverse subordinators are governed by integro-differential equations of generalized fractional type.
Beghin, Luisa   +2 more
core   +1 more source

On adaptive refinements in discrete probabilistic fracture models [PDF]

open access: yesFracture and Structural Integrity, 2017
The possibility to adaptively change discretization density is a well acknowledged and used feature of many continuum models. It is employed to save computational time and increase solution accuracy.
J. Eliáš
doaj   +1 more source

Perpetual integrals via random time changes [PDF]

open access: yesBernoulli, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Positive temporal dependence of the biological clock implies hyperbolic discounting

open access: yesFrontiers in Neuroscience, 2011
Temporal preferences of animals and humans often exhibit inconsistencies, whereby an earlier, smaller reward may be preferred when it occurs immediately but not when it is delayed.
Debajyoti eRay   +2 more
doaj   +1 more source

If $B$ and $f(B)$ are Brownian motions, then $f$ is affine [PDF]

open access: yes, 2015
It is shown that if the processes $B$ and $f(B)$ are both Brownian motions (without a random time change) then $f$ must be an affine function. As a by-product of the proof, it is shown that the only functions which are solutions to both the Laplace ...
Tehranchi, Michael R.
core   +1 more source

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