| Title | An automated decision support system for aided assessment of variogram models |
| Abstract | In the present paper, an extensive cross-validation procedure, based on the analysis of numerical indices and graphical tools, is described and discussed. The procedure has been implemented in a software application designed to support practitioners in the variogram model assessment. It provides an extensive report, which summarizes a large post-processing stage and suggests how to interpret the performed analysis to rate the model to be validated. Besides classical accuracy indices, two new integrated tools based on the variogram of residuals are introduced, which take the spatial nature of the dataset into account. Finally, inspecting the summary report, the user can decide whether the considered model is satisfactory for his/her goals or it needs to be improved. Finally, a case study is presented related to the variogram assessment of groundwater level measured in a porous shallow aquifer of the Apulia Region (South-Italy). |
| Source | Environmental modelling & software 87, pp. 72–83 |
| Keywords | Geostatistics Extensive cross-validation Rank coefficient of spatial correlation Decision-support system |
| Journal | Environmental modelling & software |
| Editor | Elsevier,, Oxford, Regno Unito |
| Year | 2017 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.envsoft.2016.11.004 |
| Authors | Barca E.; Porcu E.; Bruno D.; Passarella G. |
| Text | 371520 2017 10.1016/j.envsoft.2016.11.004 Scopus 2 s2.0 84994877079 ISI Web of Science WOS WOS 000389785300007 Geostatistics Extensive cross validation Rank coefficient of spatial correlation Decision support system An automated decision support system for aided assessment of variogram models Barca E.; Porcu E.; Bruno D.; Passarella G. Water Research Institute of the National Research Council, Viale De Blasio, 5, Bari, 70125, , , Italy; Water Research Institute of the National Research Council, Viale De Blasio, 5, Bari, 70125, , , Italy; Department of Mathematics, Universidad Tecnica Federico Santa Maria, , Chile In the present paper, an extensive cross validation procedure, based on the analysis of numerical indices and graphical tools, is described and discussed. The procedure has been implemented in a software application designed to support practitioners in the variogram model assessment. It provides an extensive report, which summarizes a large post processing stage and suggests how to interpret the performed analysis to rate the model to be validated. Besides classical accuracy indices, two new integrated tools based on the variogram of residuals are introduced, which take the spatial nature of the dataset into account. Finally, inspecting the summary report, the user can decide whether the considered model is satisfactory for his/her goals or it needs to be improved. Finally, a case study is presented related to the variogram assessment of groundwater level measured in a porous shallow aquifer of the Apulia Region South Italy . 87 Published version http //www.scopus.com/record/display.url eid=2 s2.0 84994877079 origin=inward An automated decision support system for aided assessment of variogram models 04.pdf Articolo in rivista Elsevier, 1364 8152 Environmental modelling software Environmental modelling software Environ. model. softw. Environmental modelling software Environmental modelling and software emanuele.barca BARCA EMANUELE deliaevelina.bruno BRUNO DELIA EVELINA giuseppe.passarella PASSARELLA GIUSEPPE |
