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This master thesis deals basically with the design and implementation of a path planning system based on rapidly exploring search trees for general-n-trailers. This is a probabilistic method that is characterized by a fast and uniform exploration. The method is well established, however, has been applied only to vehicles with simple kinematics to date. General-n-trailers represent a particular challenge as their controllability is limited. For this reason the focus of this thesis rests on the application of the mentioned procedure to general-n-trailers. In this context systematic correlations between the characteristics of general-n-trailers and the possibilities for the realization and application of the method are analyzed.
Diese Masterarbeit beschreibt und evaluiert die im Rahmen der Arbeit entwickelten Erweiterungen zur Schellings Segregationsimulation. Der Nobelpreisträger Thomas C. Schelling simulierte als erster ab 1969 die Segregation. Die dabei entstandenen Ergebnisse erlaubten eine genauere Analyse der auftretenden Phänomene. Uri Wilensky, Mitarbeiter der "Northwestern University", entwickelte seit 1999 eine Segregationssimulation in NetLogo.
Im Rahmen meiner Masterarbeit habe ich das NetLogo-Model von Uri Wilensky in sechs unterschiedlichen Szenarien weiterentwickelt.
The annotation of digital media is no new area of research, instead it is widely investigated. There are many innovative ideas for creating the process of annotation. The most extensive segment of related work is about semi automatic annotation. One characteristic is common in the related work: None of them put the user in focus. If you want to build an interface, which is supporting and satsfying the user, you will have to do a user evaluation first. Whithin this thesis we want to analyze, which features an interface should or should not have to meet these requirements of support, user satisfaction and beeing intuitive. After collecting many ideas and arguing with a team of experts, we determined only a few of them. Different combination of these determined variables form the interfaces, we have to investigate in our usability study. The results of the usability leads to the assumption, that autocompletion and suggestion features supports the user. Furthermore coloring tags for grouping them into categories is not disturbing to the user, but has a tendency of being supportive. Same tendencies emerge for an interface consisting of two user interface elements. There is also an example given for the definition differences of being intuitive. This thesis leads to the concolusion that for reasons of user satisfaction and support it is allowed to differ from classical annotation interface features and to implement further usability studies in the section of annotation interfaces.
Remote rendering services offer the possibility to stream high quality images to lower powered devices. Due to the transmission of data the interactivity of applications is afflicted with a delay. A method to reduce delay of the camera manipulation on the client is called 3d-warping. This method causes artifacts. In this thesis different approaches of remote rendering setups will be shown. The artifacts and improvements of the warping method will be described. Methods to reduce the artifacts will be implemented and analyzed.