Results 71 to 80 of about 3,055,467 (232)

Research examining a spatial autocorrelation imaging method based on stationary characteristics of microtremors

open access: yesFrontiers in Physics
The spatial autocorrelation method is an important method for extracting the velocity dispersion curve from microtremor data. However, site data typically cannot strictly meet spatial and temporal stationary feature, and this greatly affects the accuracy
Qingling Du   +4 more
doaj   +1 more source

Spatial Autocorrelation of Dengue and Its Relationship with Population Density in South Kalimantan, Indonesia

open access: yesAlthea Medical Journal
Background: Dengue is a viral infection transmitted to humans through the bite of Aedes aegypti and Ae. Albopictus mosquitoes. Demographic factors that may influence the development and prevalence of dengue cases include variations in population density,
Norjanah Norjanah, Muhammad Rasyid Ridha
doaj   +1 more source

Analyzing migration phenomena with spatial autocorrelation techniques [PDF]

open access: yesTerritorio Italia, 2013
In less than one century, Italy has tested a strong intensification of immigration changing from a country originating great migration flows to a country which is the destination of migration flows.
Giuseppe Borruso, Beniamino Murgante
doaj  

Spatial autocorrelation reduces model precision and predictive power in deforestation analyses

open access: yes, 2017
Generalized linear models are often used to identify covariates of landscape processes and to model land-use change. Generalized linear models however, overlook the spatial component of land-use data, and its effects on statistical inference.
K. Mets, D. Armenteras, L. Dávalos
semanticscholar   +1 more source

SPATIAL AND SECTORAL PRODUCTIVITY CONVERGENCE BETWEEN EUROPEAN REGIONS, 1975-2000 [PDF]

open access: yes
This paper analyzes the evolution of labor productivity disparities among 145 European regions over 1975-2000 according to the concepts of ƒã- and ƒÒ-convergence and emphasizes the importance of including spatial effects and a disaggregated analysis at a
Julie Le Gallo, Sandy Dall'erba
core  

Forecasting Regional Labor Market Developments under Spatial Autocorrelation

open access: yes, 2007
Because of heterogeneity across regions, economic policy measures are increasingly targeted at the regional level and, therefore, require regional forecasts. The data available to compute regional forecasts are usually a pseudo panel of a limited number
Simonetta Longhi   +5 more
core   +1 more source

Spatial Dependence of Prices for Vegetables and Fruits

open access: yesПространственная экономика
This article presents the results of the analysis of spatial autocorrelation of daily prices for 8 types of fruit and vegetables (potatoes, cabbage, carrots, tomatoes, grapes, tangerines, apples, persimmons) in 2096 municipal districts of Russia for 2021–
Venera Maratovna Timiryanova   +3 more
doaj   +1 more source

Persistence of Regional Unemployment: Application of a Spatial Filtering Approach to Local Labour Markets in Germany [PDF]

open access: yes
The geographical distribution and persistence of regional/local unemployment rates in heterogeneous economies (such as Germany) have been, in recent years, the subject of various theoretical and empirical studies.
Norbert Schanne   +3 more
core  

Random forest and spatial cross-validation performance in predicting species abundance distributions

open access: yesEnvironmental Systems Research
Random forests (RF) have been widely used to predict spatial variables. Several studies have shown that spatial cross-validation (CV) methods consistently cause RF to yield larger prediction errors compared to standard CV methods. This study examined the
Ciza Arsène Mushagalusa   +2 more
doaj   +1 more source

BANDWIDTH SELECTION FOR SPATIAL HAC AND OTHER ROBUST COVARIANCE ESTIMATORS [PDF]

open access: yes
This research note documents estimation procedures and results for an empirical investigation of the performance of the recently developed spatial, heteroskedasticity and autocorrelation consistent (HAC) covariance estimator calibrated with different ...
Raymond J.G.M. Florax   +2 more
core  

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