Results 21 to 30 of about 3,105,745 (172)

Scalarizing cost-effective multiobjective optimization algorithms made possible with kriging

, 2007
The use of kriging in cost-effective single-objective optimization is well established, and a wide variety of different criteria now exist for selecting design vectors to evaluate in the search for the global minimum.
Jan Sykulski, Hawe, G.I., Hawe, G., Sykulski, J.K., Glenn Hawe   +4 more
core   +2 more sources

Gap-filling a spatially explicit plant trait database: comparing imputation methods and different levels of environmental information [PDF]

Biogeosciences, 2018
The ubiquity of missing data in plant trait databases may hinder trait-based analyses of ecological patterns and processes. Spatially explicit datasets with information on intraspecific trait variability are rare but offer great promise in improving ...
R. Poyatos, R. Poyatos, O. Sus, L. Badiella, M. Mencuccini, M. Mencuccini, J. Martínez-Vilalta, J. Martínez-Vilalta   +7 more
doaj   +1 more source

Space time analysis of dengue fever diagnosed through a network of laboratories in India from 2014–2017

Journal of Vector Borne Diseases, 2020
Background & objectives: The Department of Health Research and the Indian Council of Medical Research, Government of India, have established Virus Research and Diagnostic Laboratory Network (VRDLN) to strengthen the laboratory capacity in the country for
Vasna Joshua, K Kanagasabai, R Sabarinathan, M Ravi, B K Kirubakaran, V Ramachandran, Vishal Shete, A Kethara Gowri, Manoj V Murhekar   +8 more
doaj   +1 more source

Kriging and Prediction of Nonlinear Functionals

Austrian Journal of Statistics, 2016
The prediction of a nonlinear functional of a random field is studied. The covariance-matching constrained kriging is considered. It is proved that the optimization problem induced by it always has a solution. The proof is constructive and it provides an
Alexander Kukush, István Fazekas
doaj   +1 more source

Evaluation of pedotransfer functions for predicting soil hydraulic properties: A voyage from regional to field scales across Europe

Journal of Hydrology: Regional Studies, 2021
Study region: Europe. A total of 660, 522, and 4940 soil samples belonging to GRIZZLY, HYPRES, and EU-HYDI databases, respectively, were used for parametric evaluation.
P. Nasta, B. Szabó, N. Romano
doaj   +1 more source

Improving Estimations of Spatial Distribution of Soil Respiration Using the Bayesian Maximum Entropy Algorithm and Soil Temperature as Auxiliary Data. [PDF]

PLoS ONE, 2016
Soil respiration inherently shows strong spatial variability. It is difficult to obtain an accurate characterization of soil respiration with an insufficient number of monitoring points. However, it is expensive and cumbersome to deploy many sensors.
Junguo Hu, Jian Zhou, Guomo Zhou, Yiqi Luo, Xiaojun Xu, Pingheng Li, Junyi Liang   +6 more
doaj   +1 more source

Analysis and spatial prediction of water retention curves in two types of soil

Revista Brasileira de Engenharia Agrícola e Ambiental
Soil is a medium that stores and transfers air, water, nutrients and heat to microorganisms and plants. Its water storage capacity is studied by analysing water retention curves (WRCs), which establish the relationship between soil water content and the ...
Diego L. Cortés-Delgadillo, Jesús H. Camacho Tamayo, Ramón Giraldo   +2 more
doaj   +1 more source

Spatial prediction of soil penetration resistance using functional geostatistics

Scientia Agricola
Knowledge of agricultural soils is a relevant factor for the sustainable development of farming activities. Studies on agricultural soils usually begin with the analysis of data obtained from sampling a finite number of sites in a particular region of ...
Diego Leonardo Cortés-D, Jesús Hernán Camacho-Tamayo, Ramón Giraldo   +2 more
doaj   +1 more source

Strategies for balancing exploration and exploitation in electromagnetic optimisation [PDF]

, 2012
The paper focuses on the advantages and drawbacks of different strategies which may be used to assist kriging surrogate modelling with the purpose of selecting multiple design vectors for evaluation when stepping forward in optimisation routines.
Rotaru, M., Sykulski, J. K., Sykulski, J.K., Xiao, Song   +3 more
core   +2 more sources

Analyzing performance degradation of joint bearings of flap mechanism based on time-series Kriging model

Xibei Gongye Daxue Xuebao
To accurately characterize the nonlinear evolution of performance degradation in joint bearings of a flap mechanism, the time-series interpolated(TSI) Kriging method is proposed.
FENG Yunwen, HE Jinge, CHEN Hongzhi, XUE Xiaofeng, CHEN Junyu, CHEN Xianmin, LI Sanyuan   +6 more
doaj   +1 more source