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It has been widely recognized that gathering data accounts for more than 80 per cent of the cost of any GIS project. Software and hardware costs are decreasing, but not datasets. In the analog era,… (More)
The increasing use of Geographic Information System applications has generated a strong interest in the assessment of data quality. As an example of quantitative raster data, we analyzed errors in… (More)
ABSTRACTThe Friedman's test is used for assessing the independence of repeated experiments resulting in ranks, summarized as a table of integer entries ranging from 1 to k, with k columns and N row...
Depending upon the user, weather records can be used as they are, or they need to be imputated prior its use. Despite the fact that general methods for meteorological variables exist, they are… (More)
Interpolation of data gathered at a finite number of locations is an everyday issue with spatial data. The choice of the best interpolation algorithm has been a topic of interest for a long time.… (More)