Results 71 to 80 of about 77,394 (227)
Spatial Estimation of Sodium Adsorption Ratio (SAR) and Chlorine in Groundwater Using Geostatistical Methods [PDF]
علوم و مهندسی آبیاری, 2011 Having knowledge of groundwater quality in arid and semi-arid areas can result sustainability of this valuable resource. For this reason, it is necessary to estimate Sodium Adsorption Ratio (SAR) and Chlorine in the groundwater quality accurately ...
A. Izadi +3 more
doaj
Kriging Metamodeling in Simulation: A Review [PDF]
This article reviews Kriging (also called spatial correlation modeling). It presents the basic Kriging assumptions and formulas contrasting Kriging and classic linear regression metamodels.
Kleijnen, J.P.C.
core +1 more source
International Journal of Urban and Regional Research, EarlyView.Abstract This article examines how modern class dynamics become intertwined with automated classifications and data‐driven regimes of value creation under digital capitalism by demonstrating how housing markets shape asset inequalities and middle‐class formation in South Africa.
Julien Migozzi
wiley +1 more source
Global Policy, EarlyView.ABSTRACT Amid shifting geopolitical tensions, the notion of “research security” has become an increasingly prominent concern in science policy. This paper analyzes how research security is framed and operationalized in Germany and the United States using discourse analysis and securitization theory.
Nicolas V. Rüffin +3 more
wiley +1 more source
Facies-Constrained Kriging Interpolation Method for Parameter Modeling
Remote SensingIn seismic exploration, establishing a reliable parameter model (such as velocity, density, impedance) is crucial for seismic migration imaging and reservoir characterization.
Zhenbo Nie +5 more
doaj +1 more source
Interpolation of ionospheric modalities using kriging, co-kriging and spatio-temporal kriging
, 2018 HF bandında çalışan uzak mesafeli iletişim sistemleri ve navigasyon sistemleri iyonküre içinden geçerken etkileşen sinyaller kullanmaktadırlar. Sistemlerin başarımını artırmak için iyonkürenin hassas olarak modellenmesi önem taşımaktadır. Sinyaller üzerinde oluşan gecikmeler sinyallerin frekansına ve yayılım anında sinyal yolu üzerindeki elektron ...
openaire +3 more sources
Animal Conservation, EarlyView.We compared genetic diversity and spatial genetic structure in the snapping turtle (Chelydra serpentina; left panel), Blanding's turtle (Emydoidea blandingii; bottom right), and spotted turtle (Clemmys guttata; top right) sampled in areas of co‐occurrence across ~49,160 km2.
Christina M. Davy +3 more
wiley +1 more source
Handling Out‐of‐Sample Areas to Estimate the Unemployment Rate at Local Labour Market Areas in Italy
International Statistical Review, EarlyView.Summary Unemployment rate estimates for small areas are used to efficiently support the distribution of services and the allocation of resources, grants and funding. A Fay–Herriot type model is the most used tool to obtain these estimates. Under this approach out‐of‐sample areas require some synthetic estimates. As the geographical context is extremely
Roberto Benedetti +4 more
wiley +1 more source
Efficient Prediction Designs for Random Fields
, 2013 For estimation and predictions of random fields it is increasingly acknowledged that the kriging variance may be a poor representative of true uncertainty.
Müller, Werner G. +3 more
core
On Spatial Point Processes With Composition‐Valued Marks
International Statistical Review, EarlyView.Summary Methods for marked spatial point processes with scalar marks have seen extensive development in recent years. While the impressive progress in data collection and storage capacities has yielded an immense increase in spatial point process data with highly challenging non‐scalar marks, methods for their analysis are not equally well developed ...
Matthias Eckardt +2 more
wiley +1 more source