Results 1 to 10 of about 21,909 (304)

Spatial autocorrelation equation based on Moran’s index

open access: yesScientific Reports, 2023
AbstractMoran’s index is an important spatial statistical measure used to determine the presence or absence of spatial autocorrelation, thereby determining the selection orientation of spatial statistical methods. However, Moran’s index is chiefly a statistical measurement rather than a mathematical model.
Yanguang Chen, Chen Yanguang
exaly   +5 more sources

New Approaches for Calculating Moran’s Index of Spatial Autocorrelation

open access: yesPLoS ONE, 2013
Spatial autocorrelation plays an important role in geographical analysis, however, there is still room for improvement of this method. The formula for Moran's index is complicated, and several basic problems remain to be solved. Therefore, I will reconstruct its mathematical framework using mathematical derivation based on linear algebra and present ...
Yanguang Chen
exaly   +6 more sources

The Atkinson Index, the Moran Statistic, and Testing Exponentiality

open access: yesJournal of the Japan Statistical Society, 2008
Constructing tests for exponentiality has been an active and fruitful research area, with numerous applications in engineering, biology and other sciences concerned with life-time data. In the present paper, we construct and investigate powerful tests for exponentiality based on two well known quantities: the Atkinson index and the Moran statistic.
Nao Mimoto, Ričardas Zitikis
exaly   +3 more sources

Classification of breast tissues using Moran's index and Geary's coefficient as texture signatures and SVM

open access: yesComputers in Biology and Medicine, 2009
Female breast cancer is the major cause of cancer-related deaths in western countries. Efforts in computer vision have been made in order to help improving the diagnostic accuracy by radiologists. In this paper, we present a methodology that uses Moran's index and Geary's coefficient measures in breast tissues extracted from mammogram images.
Geraldo Braz Junior   +2 more
exaly   +3 more sources

Study on the Spatial Relationships in the Number of Covid-19 Patients based on Ordinary Least Squares Regression and Moran's Spatial Autocorrelation Test Case study (Iran, Lorestan Province) [PDF]

open access: yesSustainable Earth Trends, 2023
To examine the spatial relationships of the number of patients, effective factors in increasing the number of patients should be determined. The information layers of dependent variables and independent variables were plotted in the GIS system.
Ghasem Keikhosravi   +1 more
doaj   +1 more source

Factors associated with interpersonal firearm violence in men in the municipalities of Minas Gerais, Brazil, 2009-2019

open access: yesRevista de Geografia (Recife), 2022
A problem observed in Brazil throughout the rest of Latin America, violence is a consequence of an imbalance in socioeconomic, political and cultural conditions, resulting from the abuse of economic and political powers and a policy of equitable ...
Mario Ribeiro Alves
doaj   +1 more source

Analisis Autokorelasi Spasial Kejadian Demam Berdarah Dengue (DBD) di Kabupaten Klaten Tahun 2020

open access: yesJurnal Vektor Penyakit, 2022
The cases of Dengue Hemorrhagic Fever (DHF) in Klaten Regency still increase from the previous year and this disease could be caused by environmental factors spreading widely in one area to another.
Septina Dwi Astuti   +2 more
doaj   +1 more source

Analysis of Justice in Distribution of Sport Services in Spatial (Case Study: Isfahan City) [PDF]

open access: yesجغرافیای اجتماعی شهری, 2021
Objective: Exercise as an important scientific and educational category in strengthening the physical and mental strength of individuals. Access to sports clubs is directly related to a person's willingness to participate in physical activity. This study
Mohammed Hossein Saraei   +2 more
doaj   +1 more source

Analyzing the Spatial Relationship Between the Droughts and Drainage of Ghazalozan Basin [PDF]

open access: yesجغرافیا و توسعه, 2017
Drought is one of the natural and hazardous phenomenon  which occurs  periodically  due to the lack of humidity  resulting from decrease of  precipitation. In this research, it is tried to study the pervasive droughts in Ghazalozan water basin during the
Gholam hassan Jafari   +2 more
doaj   +1 more source

Spatiotemporal Characteristics and Factors Influencing Value of Forest Carbon Sequestration in Henan Province

open access: yesShuitu baochi tongbao, 2023
[Objective] The spatiotemporal characteristics and factors influencing the value of forest carbon sequestration in Henan Province were analyzed in order to provide a reference for promoting the realization of “carbon peak and carbon neutrality”. [Methods]
Yu Luji   +4 more
doaj   +1 more source

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