Browsing by Author "Schmidtmer, Oliver"

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    Kognitionsframeworks II
    (2011) Engelhardt, Stephan; Hummel, Paul; Schmidtmer, Oliver
    Diese Fachstudie beschäftigt sich mit der Untersuchung und dem Vergleich der kognitiven Frameworks ACT-R, Apex und Soar. Dazu wird eine Einführung in die Grundlagen der Kognitionswissenschaft und der KI gegeben. Sowohl der Gehirnaufbau als auch verschiedene Modelle der Wissensrepräsentation und der Informationsverarbeitung werden aufgezeigt. Im Anschluss legen die Autoren Architektur, Einsatzgebiete, Ergebnisvisualisierung und Grenzen der untersuchten Frameworks dar. Abschließend werden die Frameworks bewertet und ein Ausblick in die weitere Entwicklung gegeben.
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    Visualization of space-time-structure of electromagnetic fields
    (2012) Schmidtmer, Oliver
    In the course of this work are techniques for visualization of time-dependant electromagnetic fields in space-time representation introduced. This happens on the basis of wave propagation, as this phenomenon is still not adequately researched. Therefore in this work are usually scalar fields used. The methods which are developed in this work could also be used for visualization of other typical wave propagation phenomena. In the case of vector field data, such as electromagnetic fields, they must be used on their magnitude. This methods also set a foundation for further developments in combination with analysis based on vector topology of electromagnetic fields, for further more detailed visualizations. The in the course of this work introduced methods base on the extraction of height ridge and valley surfaces. To avoid occlusions in space-time representation and further reduce the complexity of the representation, so-called virtual sources are introduced in the visualisation of wave phenomena. For this are two approaches on extracting these virtual sources explored and different approaches on processing them to space-time curves. By using these space-time-curves for a reconstruction of the original field, they deliver a compact representation of the field. This allows an effective visualisation and interpretation of the space-time structures in the field and their relations.