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Local spatial regression models: a comparative analysis on soil contamination |
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| Authors: | Bulent Tutmez Uzay Kaymak A Erhan Tercan |
| Institution: | 1. School of Engineering, Inonu University, Malatya, 44280, Turkey 2. School of Industrial Engineering, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands 3. Department of Mining Engineering, Hacettepe University, Ankara, 06800, Turkey |
| Abstract: | Spatial data analysis focuses on both attribute and locational information. Local analyses deal with differences across space whereas global analyses deal with similarities across space. This paper addresses an experimental comparative study to analyse the spatial data by some weighted local regression models. Five local regression models have been developed and their estimation capacities have been evaluated. The experimental studies showed that integration of objective function based fuzzy clustering to geostatistics provides some accurate and general models structures. In particular, the estimation performance of the model established by combining the extended fuzzy clustering algorithm and standard regional dependence function is higher than that of the other regression models. Finally, it could be suggested that the hybrid regression models developed by combining soft computing and geostatistics could be used in spatial data analysis. |
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