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Auflistung nach Autor:in "Zimmermann, Andreas"

1 - 4 von 4
  • Zeitschriftenartikel
    Context Adaptive Systems
    (i-com: Vol. 10, No. 1, 2011) Oppermann, Reinhard; Zimmermann, Andreas
    An analysis of approaches to adaptive and context-aware systems will be given. Adaptation between the user needs and the system performance will be discussed reflecting the context of use. Context-awareness will be discussed affecting the adaptation in a long-term perspective; situation-awareness will be discussed affecting the adaptation in a specific point in time and space. Three functions are presented that determine the adaptation process: the sensory function collecting the internal and external stimuli for the adaptation; the inference function identifying the adaption mechanisms based on adaptation models; and the effector function performing the identifi ed mechanisms. Finally the actors in the process of adaptation will be discussed like the user (adaptable version of adaptations), the system (adaptive version of adaptations) and a combination of both eventually together with an end-user expert.
  • Konferenzbeitrag
    Enabling Natural Interaction by Approaching Objects
    (13. GI-Workshop "Adapitivität und Benutzermodellierung in interaktiven Softwaresystemen", 2005) Lorenz, Andreas; Zimmermann, Andreas; Eisenhauer, Markus
    This paper introduces the research issues to make a major step towards natural human interaction with mobile multimodal systems. Thereby, we aim at combining explicit and implicit interaction to blended multimodal interaction. Natural inter- action and the requirement to anticipate a mix of purposive behaviour and uncertainty requires rendering information in a way that is compatible with and aware of the situational context. In two application examples we illustrate our approaches of interaction by movement. As the basis for adaptive behaviour, this paper describes the conclusions drawn from tracking the mobile user in two environments: a museum and a maintenance setting. It also illuminates different aspects of this technology, such as accuracy and costs, and illustrates the results of our project using the specific technology.
  • Konferenzbeitrag
    LISTEN: Contextualized Presentation for Audio-Augmented Environments
    (11. GI-Workshop "Adaptivität und Benutzermodellierung in interaktiven Softwaresystemen", 2003) Zimmermann, Andreas; Lorenz, Andreas
    The paper deals with the awareness of and the adaptation to the context in audio-augmented environments. Taking into account the relationship between aural and visual perceptions, we focus on the issues and the potential of adapting intelligent audio interfaces to augment the visual real environment. The description of the LISTEN project, a system for the creation of immersive audio-augmented environments, is taken as showcase; in particular, our focus is on the modelling and personalization methods affecting the audio design and presentation. The outcomes of the preliminary tests are reported in order to describe the is- sues and complexity of intelligent user model- ling in audio-augmented environments.
  • Konferenzbeitrag
    Reasoning from Context
    (10. GI-Workshop "Adaptivität und Benutzermodellierung in interaktiven Softwaresystemen", 2002) Zimmermann, Andreas; Lorenz, Andreas; Specht, Marcus
    The paper describes a new approach of using the Case-Based Reasoning (CBR) methodology in context-aware systems. We elaborate how this technique can be applied to generate recommendations based on the contexts of users respectively objects especially in a mobile scenario. By combining CBR methodology and context awareness a new and powerful way of modelling and reasoning from contexts emerges. Using CBR cases to enclose the context will then enhance the possibilities to compare contexts, determine certain values of context-similarities, and reflect this information in the process of generating recommendations.