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pub H-BRS - Publikationsserver der Hochschule Bonn-Rhein-Sieg
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73 Publications
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  • Recognizing Emotions Conveyed through Facial Expressions

    Emotional communication is a key element of habilitation care of persons with dementia. It is, therefore, highly preferable for assistive robots that are used to supplement human care provided to persons with dementia, to possess the ability to recognize and respond to emotions expressed by those who are being cared-for. Facial expressions are one of the key modalities through which emotions are conveyed. This work focuses on computer vision-based recognition of facial expressions of emotions...

    Betrachtungen zum Cutting sticks-Problem

    Das Cutting sticks-Problem ist ein NP-vollständiges Problem mit Anwendungspotenzialen im Bereich der Logistik. Es werden grundlegende Definitionen für die Behandlung sowie bisherige Ansätze zur Lösung des Problems aufgearbeitet und durch einige neue Aussagen ergänzt. Insbesondere stehen Ideen für eine algorithmische Lösung des Problems bzw. von Varianten des Problems im Fokus.

    Anwendung und Untersuchung von Path-Packing in der Lagerlogistik

    Das Optimalziel für ein Logistiklager ist eine hohe Auslastung des Transportsystems. Es stellt sich somit die Frage nach der Auswahl der Aufträge, die gleichzeitig innerhalb des Lagers abgearbeitet werden, ohne Staus, Blockaden oder Überlastungen entstehen zu lassen. Dieser Auswahlprozess wird auch als Path-Packing bezeichnet. Diese Masterthesis untersucht das Path-Packing auf graphentheoretischer Ebene und stellt verschiedene Greedy-Heuristiken, eine Optimallösung auf Basis der Linearen Prog...

    Dynamic Emotional States based on Personality Profiles for Adaptive Agent Behavior Patterns

    Realism and plausibility of computer controlled entities in entertainment software have been enhanced by adding both static personalities and dynamic emotions. Here a generic model is introduced which allows the transfer of findings from real-life personality studies to a computational model. This information is used for decision making. The introduction of dynamic event-based emotions enables adaptive behavior patterns. The advantages of this new model have been validated with a four-way cro...

    The Application of Headspace: Solid-Phase Microextraction (HS-SPME) Coupled with Gas Chromatography/Mass Spectrometry (GC/MS) for the Characterization of Polymers

    Solid-Phase Microextraction (SPME) is a very simple and efficient, solventless sample preparation method, invented by Pawliszyn and coworkers at the University of Waterloo (Canada) in 1989. This method has been widely used in different fields of analytical chemistry since its first applications to environmental and food analysis. SPME integrates sampling, extraction, concentration and sample introduction into a single solvent-free step. The method saves preparation time, disposal costs and ca...
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