Results 11 to 20 of about 1,675 (179)

On the classification error rates in terms of semivariograms for Gaussian universal kriging models

open access: yesLithuanian Journal of Statistics, 2021
Bayes multiclass classification of spatial Gaussian data following the universal kriging model is considered. The closed-form expressions for the maximum likelihood (ML) estimator of regression parameters and the actual error rate (AER) in terms of ...
Kęstutis Dučinskas, Lina Dreižienė
doaj   +1 more source

Semivariogram calculation optimization for object-oriented image classification

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   +1 more source

INTERPOLASI SPASIAL DENGAN METODE ORDINARY KRIGING MENGGUNAKAN SEMIVARIOGRAM ISOTROPIK PADA DATA SPASIAL (Studi Kasus: Curah Hujan di Kabupaten Karangasem)

open access: yesE-Jurnal Matematika, 2015
Spatial data is data that is presented in the geographic of an object, related to the location, shape and relationship of the earth in space. One of example of spatial data is rainfall. To determine the value of rainfall in an area, built to predict rain
PUTU MIRAH PURNAMA D.   +2 more
doaj   +1 more source

Comparison Between Iterative Least Square and Nonparametric Epanechnikov Kernel in Semivariogram Modeling, Case study: Urban Land Cover in East Java Province [PDF]

open access: yesITM Web of Conferences
Landcover is an example of spatial data that contains location coordinate information along with the variables measured at each location, namely height, slope, and curvature.
Sari Kurnia Novita   +3 more
doaj   +1 more source

Semivariogram models for rice stem bug population densities estimated by ordinary kriging

open access: yesActa Scientiarum. Agronomy, 2020
Tibraca limbativentris is considered one of the main species of insect pests in irrigated rice. This species can be found in plants in the vegetative and reproductive stages.
Mauricio Paulo Batistella Pasini   +3 more
doaj   +1 more source

Semivariogram models for estimating fig fly population density throughout the year

open access: yesPesquisa Agropecuária Brasileira, 2014
The objective of this work was to select semivariogram models to estimate the population density of fig fly (Zaprionus indianus; Diptera: Drosophilidae) throughout the year, using ordinary kriging.
Mauricio Paulo Batistella Pasini   +2 more
doaj   +1 more source

Spatial variability of air dry bulb temperature and black globe humidity index in a broiler house during the heating phase [PDF]

open access: yesEngenharia Agrícola, 2013
The air dry-bulb temperature (t db),as well as the black globe humidity index (BGHI), exert great influence on the development of broiler chickens during their heating phase. Therefore, the aim of this study was to analyze the structure and the magnitude
Patrícia F. Ponciano   +4 more
doaj   +1 more source

Spatial analysis of tree regeneration in a preserved area in Zagros forests, Iran [PDF]

open access: yesEnvironmental Resources Research, 2021
Forest ecosystems are complex dynamical systems described by attributes of composition, structure, and function. To understand and manage forest ecosystems, we are required to explain and classify their dynamic structure and spatial patterns.
Sh. Gholami, Z. Ahmadiyan, E. Sayad
doaj   +1 more source

The Application of Spatial Analysis and Time Series in Modeling the Frequency of Earthquake Events in Bengkulu Province

open access: yesAceh International Journal of Science and Technology, 2018
This study provides an overview in combining spatial analysis and time series analysis to model the frequency of earthquake. The aim of this research is to apply the spatial statistical analysis and time series analysis in estimating semivariogram ...
Fachri Faisal, Pepi Novianti, Jose Rizal
doaj   +1 more source

Semivariogram Modeling based on Provincial Clusters for Infectious Diseases and Mental Health in Indonesia [PDF]

open access: yesITM Web of Conferences
Health is a valuable asset that profoundly impacts individuals and society as a whole, enhancing overall well-being and quality of life. Both internal and external factors, along with geographical location, play a crucial role in health.
Sari Kurnia Novita   +3 more
doaj   +1 more source

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