Results 11 to 20 of about 3,459 (219)

Spatial Distribution Based on Semivariogram Model

open access: yesEconomic Journal of Emerging Markets, 2011
This article aims to discuss some aspects in conducting inferential analysis of census data. In this analysis, the assumptions of normality and IID (independently and identically distribution) in the observations are no longer realistic.
Gandi Pawitan
doaj   +12 more sources

Eksplorasi Software R Untuk Fitting Semivariogram Spherical Menggunakan Pemrograman Linear dan Uji Analisis Sensitivitas [PDF]

open access: yesJurnal Matematika Integratif, 2017
Semivariogram adalah diagram setengah variansi dari observasi spasial yang berada pada suatu jarak tertentu. Model ini digunakan untuk mendeskripsikan kolerasi spasial.
Tegar Bratasena WKM   +2 more
doaj   +4 more sources

Jack knifing for semivariogram validation [PDF]

open access: yesBragantia, 2010
The semivariogram function fitting is the most important aspect of geostatistics and because of this the model chosen must be validated. Jack knifing may be one the most efficient ways for this validation purpose. The objective of this study was to show the use of the jack knifing technique to validate geostatistical hypothesis and semivariogram models.
Vieira, Sidney Rosa   +2 more
openaire   +5 more sources

Identification of Multiscale Spatial Structure of Lunar Impact Crater: A Semivariogram Approach

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Identifying the spatial structure of lunar impact craters is necessary to increase our understanding of past geologic processes on the Moon. However, detecting multiscale spatial structures of craters in images in appropriate resolutions using optimum ...
Jiao Wang, Dongping Ming, Weiming Cheng
doaj   +2 more sources

Semivariogram calculation optimization for object-oriented image classification [PDF]

open access: yesModelling in Science Education and Learning, 2011
In this paper we propose and evaluate different mathematical parameters extracted from the experimental semivariogram for land use/land cover classification using high-resolution images and cadastral mapping limits for the definition of the objects of ...
A. Balaguer-Beser   +3 more
doaj   +2 more sources

Application of Weighted Semivariogram Model (WSVM) based on fitness to experimental semivariogram on estimation of rainfall amount

open access: yes, 2011
Abstract. This study presents a weighted semivariogram model (WSVM) which is intended to reduce the uncertainties in the selection of the best-fit semivariogram model and associated parameters. The proposed WSVM is based on the combined forecast method, providing the weighted average semivariogram by summing up the product of estimated semivariograms ...
Wu, S.-J., Chen, P.-H., Yang, J.-C.
openaire   +3 more sources

Semiparametric Semivariogram Modeling with a Scaling Criterion for Node Spacing: A Case Study of Solar Radiation Distribution in Thailand

open access: yesMathematics, 2020
Geostatistical interpolation methods, sometimes referred to as kriging, have been proven effective and efficient for the estimation of target quantity at ungauged sites.
Sompop Moonchai, Nawinda Chutsagulprom
exaly   +3 more sources

Fast semivariogram computation using FPGA architectures

open access: yesSPIE Proceedings, 2015
The semivariogram is a statistical measure of the spatial distribution of data and is based on Markov Random Fields (MRFs). Semivariogram analysis is a computationally intensive algorithm that has typically seen applications in the geosciences and remote sensing areas.
Yamuna Lagadapati   +2 more
openaire   +4 more sources

Application of a semivariogram based on a deep neural network to Ordinary Kriging interpolation of elevation data.

open access: yesPLoS ONE, 2022
The Ordinary Kriging method is a common spatial interpolation algorithm in geostatistics. Because the semivariogram required for kriging interpolation greatly influences this process, optimal fitting of the semivariogram is of major significance for ...
Yang Li   +3 more
doaj   +1 more source

Precipitation trends analysis by Mann-Kendall test: a case study of Paraíba, Brazil [PDF]

open access: yesRevista Brasileira de Meteorologia, 2020
This work aimed to select semivariogram models to estimate trends in monthly precipitation in Paraiba State-Brazil using ordinary kriging. The methodology involves the application of geostatistical interpolation of precipitation records of 51 years from ...
Sílvio Fernando Alves Xavier Júnior   +4 more
doaj   +1 more source

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