Results 11 to 20 of about 14,309 (209)

Bootstrap based uncertainty bands for prediction in functional kriging [PDF]

open access: yesSpatial Statistics, 2017
The increasing interest in spatially correlated functional data has led to the development of appropriate geostatistical techniques that allow to predict a curve at an unmonitored location using a functional kriging with external drift model that takes into account the effect of exogenous variables (either scalar or functional).
FRANCO VILLORIA, Maria   +1 more
openaire   +6 more sources

Extending Functional kriging to a multivariate context [PDF]

open access: yes, 2020
Environmental data usually have a spatio-temporal structure; pollutant concentrations, for example, are recorded along time and space. Generalized Additive Models (GAMs) represent a suitable tool to model spatial and/or temporal trends of this kind of data, that can be treated as functional, although they are collected as discrete observations ...
francesca di salvo   +2 more
openaire   +4 more sources

Parameter Analysis and Optimization of Annular Jet Pump Based on Kriging Model

open access: yesApplied Sciences, 2020
Jet pump efficiency heavily relies on the geometrical parameters of the pump design and parameter global optimization in the full variable space is still a big challenge.
Kai Xu   +6 more
doaj   +1 more source

Soft Tissue Deformation Modeling in the Procedure of Needle Insertion: A Kriging-Based Method

open access: yesChinese Journal of Mechanical Engineering, 2022
The simulation and planning system (SPS) requires accurate and real-time feedback regarding the deformation of soft tissues during the needle insertion procedure. Traditional mechanical-based models such as the finite element method (FEM) are widely used
Yong Lei, Murong Li, Dedong Gao
doaj   +1 more source

Reliability Analysis of Pyrotechnic Igniter for Hydrogen-Oxygen Rocket Engine with Low Temperature Combustion Instability Failure Mode

open access: yesApplied Sciences, 2022
To evaluate the functional reliability of the pyrotechnic igniter in the failure mode of unstable combustion at low temperature, a reliability and reliability sensitivity analysis method based on the combination of an interior ballistic model and Kriging
Lei Niu   +5 more
doaj   +1 more source

Cokriging Prediction Using as Secondary Variable a Functional Random Field with Application in Environmental Pollution

open access: yesMathematics, 2020
Cokriging is a geostatistical technique that is used for spatial prediction when realizations of a random field are available. If a secondary variable is cross-correlated with the primary variable, both variables may be employed for prediction by means ...
Ramón Giraldo   +2 more
doaj   +1 more source

Spatial prediction of soil infiltration using functional geostatistics

open access: yesActa Universitatis Carolinae Geographica, 2018
The infiltration of water into the soil is a necessary parameter for irrigation systems design. Characterizing its spatial behavior allows a site-specific management of water according to soil conditions and crop requirements. The aim of this study is to
Diego Leonardo Cortes-D   +2 more
doaj   +1 more source

Fast Performance Modeling across Different Database Versions Using Partitioned Co-Kriging

open access: yesApplied Sciences, 2021
Database systems have a large number of configuration parameters that control functional and non-functional properties (e.g., performance and cost). Different configurations may lead to different performance values.
Rong Cao   +6 more
doaj   +1 more source

Machine learning with systematic density-functional theory calculations: Application to melting temperatures of single and binary component solids [PDF]

open access: yes, 2014
A combination of systematic density functional theory (DFT) calculations and machine learning techniques has a wide range of potential applications.
Maekawa, Tomoya   +3 more
core   +2 more sources

Advanced Kriging response surface approach for efficient design optimization

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this research, a Gradient-Vector Product (GVP) enhanced Kriging response surface model approach has been developed in which the GVP is defined by the gradient vector of objective function with respect to design variables as well as an arbitral unit ...
Wataru YAMAZAKI
doaj   +1 more source

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