Results 71 to 80 of about 3,105,745 (172)

The Correct Kriging Variance Estimated by Bootstrapping [PDF]

open access: yes
The classic Kriging variance formula is widely used in geostatistics and in the design and analysis of computer experiments.This paper proves that this formula is wrong.Furthermore, it shows that the formula underestimates the Kriging variance in ...
Siem, A.Y.D.   +2 more
core  

Mapping Coral Reef Resilience Indicators Using Field and Remotely Sensed Data

open access: yesRemote Sensing, 2013
In the face of increasing climate-related impacts on coral reefs, the integration of ecosystem resilience into marine conservation planning has become a priority.
Stuart Phinn   +4 more
doaj   +1 more source

Kriging assisted design of a synchronous superconducting generator with YBCO windings

open access: yes, 2009
This paper describes the applicability of a kriging assisted method to the design of a synchronous generator with a high temperature superconducting (HTS) rotor winding.
Lukasik, B.   +3 more
core   +1 more source

Spatial Modelling of Soil Quality Index Using Regression–Kriging and Delineation of Nutrient Management Zones in High-Andean Quinoa Fields, Southern Peru

open access: yesAgronomy
The pronounced heterogeneity of high-Andean soils constitutes a critical constraint to the sustainable productivity of quinoa in southern Peru, where current yields (1.6 t ha−1) remain well below potential (>5 t ha−1).
Nestor Cuellar-Condori   +8 more
doaj   +1 more source

Kriging Universal para Datos Funcionales [PDF]

open access: yes, 2011
En diversos ámbitos de la ciencia con gran frecuencia los resultados suelen reflejarse por medio de curvas (datos funcionales). Con este trabajo se pretende dar una solución al problema de la predicción espacial de datos funcionales cuando no se ...
Caballero Guardo, Willian De Jesús
core  

Considerations of uncertainty in robust optimisation of electromagnetic devices

open access: yes, 2014
Due to unavoidable uncertainties related to material properties and manufacturing processes, the robustness of the optimal solution must be considered when designing electromagnetic devices.
Rotaru, Mihai   +3 more
core   +1 more source

Geostatistics for functional data: an ordinary kriging approach [PDF]

open access: yes, 2007
We present a methodology to perform spatial prediction when measured data are curves. In particular, we propose both an estimator of the spatial correlation and a functional kriging predictor. We adapt an optimization criterium used in multi- variable
Giraldo, Ramón   +2 more
core   +2 more sources

Ozone Risk Assessment and Mapping in the Alps Based on Data from Passive Samplers

open access: yesThe Scientific World Journal, 2002
Passive samplers (diffusion tubes with organic reagent, produced by Passam of Switzerland) were used in a sampling campaign for the detection of weekly mean ozone concentrations in 15 sites over a domain of 80 x 40 km on the southern side of the European
Cristina Mazzali   +3 more
doaj   +1 more source

A Scalarizing One-Stage Algorithm for Efficient Multi-Objective Optimization [PDF]

open access: yes, 2007
A novel kriging-assisted algorithm is proposed for computationally expensive multi-objective optimization problems, such as those which arise in electromagnetic design. The algorithm combines the multiple objectives into a single objective, which it then
Hawe, G. I.   +3 more
core   +1 more source

Statistical methods and transport modeling to assess PCE hotspots and diffuse pollution in groundwater (Milan FUA)

open access: yesAcque Sotterranee, 2017
The Italian law 152/2006 adopted the EU Water Framework Directive principles and delegated to the Regions the task of identifying areas subject to groundwater diffuse pollution.
Loris Colombo
doaj   +1 more source

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