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SML@b GEO Portal PDF Print


Geographic information is a key factor in many current and future applications. Those data are directly related to many real world objects and processes that are depicted and supported by software. Those data are mostly used in Geographical Information Systems and geo-portals. A current field of research is the further improvement of the provision and application of geographically-referenced data by
semantic means. In this context, the Semantic Window technology is one applicable approach for substantial advances. Ths approach is developed by Steffen Mencke (see Steffen Mencke: Proactive Ontology-Based Content Provision in the Context of e-Learning, PhD, University of Magdeburg, 2008). The basic idea of the so-called semantic window is the flexibility of the Web content structure considering any domain ontologies supporting different (learning) view



The structuring is based on (learning) concepts (Ci) connecting to their domain content as ontology element (Ej).



The didactical structur of the eLearning support is shown in the following figure.



The ontology-based concept structur helps to measure and evaluate the different distances as a basic for the evaluation of the content difficulty, complexity etc.



Based on this evaluation, the Web contents could be defined considering the variances between the Web contents.



An exmple of Web content presentation including a distance-based evaluation is given in the following screen.




Another infrastructural background of this Geo portal Web content is characterized in the next figure.






Last Updated on Monday, 14 January 2013 11:36