Results 31 to 40 of about 917,096 (229)

A Universal Kriging predictor for spatially dependent functional data of a Hilbert Space [PDF]

open access: yes, 2013
We address the problem of predicting spatially dependent functional data belonging to a Hilbert space, with a Functional Data Analysis approach. Having defined new global measures of spatial variability for functional random processes, we derive a ...
A. Menafoglio, M. Dalla Rosa, P. Secchi
core   +2 more sources

Spatio-Temporal Analysis of Drought Severity Using Drought Indices and Deterministic and Geostatistical Methods (Case Study: Zayandehroud River Basin) [PDF]

open access: yesDesert, 2016
Drought monitoring is a fundamental component of drought risk management. It is normally performed using various drought indices that are effectively continuous functions of rainfall and other hydrometeorological variables.
A. Afzali   +8 more
doaj   +1 more source

Comparing Methods for Interpolation to Improve Raster Digital Elevation Models [PDF]

open access: yes, 2012
Digital elevation models (DEMs) are available as raster files at 100m, 30m, and 10m resolutions for the contiguous United States and are used in a variety of geographic analyses. Some projects may require a finer resolution.
Guarneri, J. C., Weih, R. C., Jr.
core   +3 more sources

Climatic variations in Macerata province (Central Italy) [PDF]

open access: yes, 2018
The province of Macerata, Italy, is a topographically complex region which has been little studied in terms of its temperature and precipitation climatology.
Barbieri, Maurizio   +2 more
core   +1 more source

Kernel Approximations for Universal Kriging Predictors

open access: yesJournal of Multivariate Analysis, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, B., Stein, M.
openaire   +2 more sources

Augmenting Geostatistics with Matrix Factorization: A Case Study for House Price Estimation

open access: yesISPRS International Journal of Geo-Information, 2020
Singular value decomposition (SVD) is ubiquitously used in recommendation systems to estimate and predict values based on latent features obtained through matrix factorization.
Aisha Sikder, Andreas Züfle
doaj   +1 more source

Regional scale surface of the top of the Variscan basement in the central sector of Italy

open access: yesJournal of Maps, 2023
In this study, we combined regional geology and geostatistical analytical processing to model the top surface of the Variscan basement in Italy. This surface, which is overlain by the pre-Alpine sedimentary cycle (Upper Carboniferous – Permian) followed ...
Eugenio Trumpy   +2 more
doaj   +1 more source

Cross Validation and Maximum Likelihood estimations of hyper-parameters of Gaussian processes with model misspecification [PDF]

open access: yes, 2013
The Maximum Likelihood (ML) and Cross Validation (CV) methods for estimating covariance hyper-parameters are compared, in the context of Kriging with a misspecified covariance structure. A two-step approach is used. First, the case of the estimation of a
Bachoc, François
core   +1 more source

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

open access: yes, 2016
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 ...
Franco-Villoria, Maria   +1 more
core   +3 more sources

On the drawback of local detrending in universal kriging in conditions of heterogeneously spaced regional TEC data, low-order trends and outlier occurrences

open access: yesJournal of Geodesy, 2020
The study intercompares three stochastic interpolation methods originating from the same geostatistical family: least-squares collocation (LSC) known from geodesy, as well as ordinary kriging (OKR) and universal kriging (UKR) known from geology and other
W. Jarmołowski   +3 more
semanticscholar   +1 more source

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