نتایج جستجو برای: gwr

تعداد نتایج: 614  

2012
S. Deschenes E. Setton P. A. Demers P. C. Keller

Geographically Weighted Regression (GWR) is used to analyze the spatial variability of the relationship between the surface and the subsurface (b horizon) soil metal concentration. We used publiclyavailable soil samples from provincial government websites in Canada. The correlation between the log of concentration levels of the two layers are 0.51 for As, 0.40 for Cd, 0.33 for Cr, 0.52 for Co, ...

2009
Antonio Páez

Multicollinearities among the coefficients obtained from the method of geographically weighted regression have been identified in recent research. This is a serious issue that poses a critical challenge for the utility of the method as a tool to investigate multivariate relationships. The evidence regarding the ability of GWR to retrieve spatially varying processes remains mixed due to partial ...

2017
Zhihua Zhang Rachel J. C. Chen Lee D. Han Lu Yang

Airbnb has been increasingly gaining popularity since 2008 due to its low prices and direct interactions with the local community. This paper employed a general linear model (GLM) and a geographically weighted regression (GWR) model to identify the key factors affecting Airbnb listing prices using data sets of 794 samples of Airbnb listings of business units in Metro Nashville, Tennessee. The r...

Journal: :International Journal of Geographical Information Science 2021

While recent developments have extended geographically weighted regression (GWR) in many directions, it is usually assumed that the relationships between dependent and independent variables are linear. In practice, however, often case nonlinearly associated. To address this issue, we propose a artificial neural network (GWANN). GWANN combines geographical weighting with networks, which able to ...

Journal: :Journal of the Korean Association of Geographic Information Studies 2012

Journal: :Atmosphere 2022

High spatial resolution (1 km or finer) precipitation data fields are crucial for understanding the Earth’s water and energy cycles at regional scale applications. The of Global Precipitation Measurement (GPM) mission (IMERG) satellite products is 0.1° (latitude) × (longitude), which too coarse regional-scale analysis. This study combined Geographically Weighted Regression (GWR) Multifractal Ra...

Journal: :SAR Journal 2023

The percentage of undernourished toddlers on Java Island averages 8.5 %. This number is relatively high compared to the average incidence undernutrition in Sumatra, 3.3%. study uses OLS, GWR, and GWANN explore data Island. We use cross-validation determine optimum bandwidth GWR methods. a single hidden layer with several neurons where selected based RMSE. indicators RMSE, MAE, MAPE best method ...

2011
Alexis J Comber Chris Brunsdon Robert Radburn

BACKGROUND This paper analyses the relationship between public perceptions of access to general practitioners (GPs) surgeries and hospitals against health status, car ownership and geographic distance. In so doing it explores the different dimensions associated with facility access and accessibility. METHODS Data on difficulties experienced in accessing health services, respondent health stat...

2014
Ta-Chien Chan Po-Huang Chiang Ming-Daw Su Hsuan-Wen Wang Michael Shi-yung Liu

Chronic obstructive pulmonary disease (COPD) causes a high disease burden among the elderly worldwide. In Taiwan, the long-term temporal trend of COPD mortality is declining, but the geographical disparity of the disease is not yet known. Nationwide COPD age-adjusted mortality at the township level during 1999-2007 is used for elucidating the geographical distribution of the disease. With an or...

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