High-performance solutions of geographically weighted regression in R

نویسندگان

چکیده

As an established spatial analytical tool, Geographically Weighted Regression (GWR) has been applied across a variety of disciplines. However, its usage can be challenging for large datasets, which are increasingly prevalent in today’s digital world. In this study, we propose two high-performance R solutions GWR via Multi-core Parallel (MP) and Compute Unified Device Architecture (CUDA) techniques, respectively GWR-MP GWR-CUDA. We compared GWR-CUDA with three existing available Models (GWmodel), Multi-scale (MGWR) Fast (FastGWR). Results showed that all five perform differently varying sample sizes, no single solution clear winner terms computational efficiency. Specifically, given GWmodel MGWR provided acceptable costs studies relatively small size. For size, FastGWR coherent on Personal Computer (PC) common multi-core configuration, more efficient computing capacity each core or thread than FastGWR. cases when the size was very large, these only, most solution, but should note I/O cost samples. summary, complementary to ones, where certain data-rich studies, they preferred.

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ژورنال

عنوان ژورنال: Geo-spatial Information Science

سال: 2022

ISSN: ['1993-5153', '1009-5020']

DOI: https://doi.org/10.1080/10095020.2022.2064244