Results 21 to 30 of about 1,141,433 (264)
Random Forest Winter Wheat Extraction Algorithm Based on Spatial Features of Neighborhood Samples
Mathematics, 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
PSEUDO RANDOM NUMBER GENERATION USING EYE BRIGHTNESS RESPONSE
ICTACT 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
On adaptive refinements in discrete probabilistic fracture models [PDF]
Fracture 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
Positive temporal dependence of the biological clock implies hyperbolic discounting
Frontiers 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
Авіаційно-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
GIScience & Remote Sensing, 2022 Obtaining robust change-detection results and reconstructing planting history are important bases for conducting forest resource monitoring and management.
Dengqiu Li +3 more
doaj +1 more source
Adaptive differentiation of Festuca rubra along a climate gradient revealed by molecular markers and quantitative traits. [PDF]
PLoS ONE, 2018 Species response to climate change is influenced by predictable (selective) and unpredictable (random) evolutionary processes. To understand how climate change will affect present-day species, it is necessary to assess their adaptive potential and ...
Bojana Stojanova +5 more
doaj +1 more source
Remote Sensing, 2022 Quantitative plant species α-diversity of grasslands at multiple spatial and temporal scales is important for investigating the responses of biodiversity to global change and protecting biodiversity under global change.
Yuan Tian, Gang Fu
doaj +1 more source
Simulation of non-stationary event flow with a nested stationary component
Discrete and Continuous Models and Applied Computational Science, 2020 A method for constructing an ensemble of time series trajectories with a nonstationary flow of events and a non-stationary empirical distribution of the values of the observed random variable is described.
Ruslan V. Pleshakov
doaj +1 more source
Random Time Changes for Processes with Random Birth and Death
The Annals of Probability, 1987 A random time-change for a stationary Markov process with random birth and death times is studied. A diffusive homogeneous random measure B is used to construct the time change clock preserving the Markovian and stationarity properties. Properties of the characteristic measure \(\nu_ B\) of B related to the time-changed semigroup are investigated.
openaire +3 more sources