The presented datasets relate to the research article entitled "Land changes in Slovakia: past processes and future directions" [8]. The datasets include the land use and cover (LUC) maps of Slovakia for the years 2006 and 2012 and maps of five future land use scenarios for 2040 developed along the axes of globalisation vs. regionalisation and low vs. high policy intervention (IPCC). Datasets w...

A method for automatic classification and dcscription of the colour-layer of thcrnatic maps is presented. Owing to the type of noisc appcaring in the scanncd imagcs, we find it useful to combine pixel classificatiorl and rastcr-to-vector convcrsion in ordcr to produce acceptable results. l'hc colour value of an arca is dctcrmincd from a sclcctivcly sampled set of pixcls and a set of threshold v...

Building accurate thematic maps which show distribution of a feature over a geographic area is a challenging task when the sample dataset is limited in size and distribution. We propose the classification of these geospatial datasets as a promising approach towards building approximate thematic maps. However, choosing an appropriate classification method that considers spatial autocorrelation i...

M. Violet Gray RBF Consulting Camarillo, California [email protected] Gould and White (1968) introduced the measurement and isoline mapping of regional preferences, producing preference or “isoeutope” maps. As cartographers know, the decision to employ isoline mapping as a cartographic display technique is valid insofar as certain assumptions are met, notably the assumption that the varia...

We have developed a method for autonomous construction of thematic maps of Martian terrain from digital topography. These maps show spatial distribution of topographical features and are generated by a computer algorithm that classifies pixels on the basis of topographical information they carry. We apply our technique to generate a thematic map of Tisia Valles region on Mars. Introduction. The...

With the increasing number of digital maps and other geo-referenced data that are available over the Internet, there is a growing need for access to techniques that allow us to preview the content and to evaluate it relative to the requirements for complex spatial and thematic queries. . Analogous to the digital indices for fulltext searches on text documents, we introduce highly condensed, mac...

to determine the potential habitat of two rangeland species of salsola rigidaand agropyron trichophorum in qasr-e-shirin, iran, geographic information systems(gis) and remote sensing (rs) techniques were used. at first, several maps (vegetationcover and land uses maps and thematic maps of various organizations) were collected orprepared. for digitizing geology, vegetation and conventional state...

Software visualizations can provide a concise overview of a complex software system. Unfortunately, since software has no physical shape, there is no “natural” mapping of software to a two-dimensional space. As a consequence most visualizations tend to use a layout in which position and distance have no meaning, and consequently layout typical diverges from one visualization to another. We prop...

Map-based visualization and analysis will become an important factor in future Web-applications. Regional location atlases and logistics support are prominent examples. Location-based services will likely become a killer application of next generation mobile phone computers using, e.g., UMTS technology. In the paper we introduce our Descartes system as an interactive, direct manipulation Web-Ma...

3 Multinomial tests of accuracy 7 3.1 Naïve measures of agreement . . . . . . . . . . . . . 9 3.2 The weighted confusion matrix . . . . . . . . . . . . 12 3.3 The kappa index of agreement . . . . . . . . . . . . . 15 3.4 Conditional kappa . . . . . . . . . . . . . . . . . . . . 19 3.5 Weighted kappa . . . . . . . . . . . . . . . . . . . . . 20 3.6 The tau index . . . . . . . . . . . . . . . . ....