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Auflistung nach Autor:in "Lorenz, Andreas"

1 - 5 von 5
  • 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
    Features of a Toolkit for open Human-Computer Interaction with Ambient Services
    (INFORMATIK 2008. Beherrschbare Systeme – dank Informatik. Band 1, 2008) Lorenz, Andreas
    For the deployment of ambient services it is unrealistic to base user-computer interaction on traditional mouse or keyboard. Replacing them with other proprietary devices just moves boundaries in interacting with ambient services to other designated hardware. It still does not pay attention to preferences and capabilities of particular users. Our aim is to abstract from concrete devices used for controlling services in the environment. In this paper we introduce a toolkit for developing software solutions working with any device as input device delivering meaningful events to services.
  • 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.
  • Konferenzbeitrag
    Towards a new Role of Agent Technology in User Modelling
    (11. GI-Workshop "Adaptivität und Benutzermodellierung in interaktiven Softwaresystemen", 2003) Lorenz, Andreas
    This paper discusses resent attempts to employ multi-agent technologies for user modelling purposes. Based on the analysis of recent implemented systems, this contribution provides a general agent definition representing a flexible implementation to employ highly specialized entities for user modelling tasks, and illustrates communication and cooperation approaches. In the overall solution, agent teams cooperate to fulfil the requirements of user modelling in a more appropriate way.