Matthias Hemmje

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LyberWorld is a prototype IR user interface. It implements visualizations of an abstract information space – fulltext. The paper derives a model for such visualizations and an exemplar user interface design is implemented for the probabilistic fulltext retrieval system INQUERY. Visualizations are used to communicate information search and browsing(More)
LyberWorld is a prototype lR user interface. It implements visualizations of an abstract information space – fulltext. The paper derives a model for such visualizations and an exemplar user interface design is implemented for the probabilistic fulltext retrieval system INQUERY. Visualizations are used to communicate information search and browsing(More)
Personalization is an established method for reducing information overload and facilitating targeted access to relevant information objects in an information system. However, the use of the information collected about a user and his current context in a user profile is traditionally restricted to a single system, although many user tasks require information(More)
In user interfaces of modern systems, users get the impression of directly interacting with application objects. In 3D based user interfaces, novel input devices, like hand and force input devices, are being introduced. They aim at providing natural ways of interaction. The use of a hand input device allows the recognition of static poses and dynamic(More)
In this paper we introduce Virgilio, a system which supports the construction of nonimmersive VR-based visualizations of complex data objects representing the result of a query performed on a multimedia database. Virgilio takes as input the dataset resulting from a query on a generic database, displays attribute values of the dataset on virtual world(More)
In this paper we discuss how metaphors for supporting user interaction with multimedia databases can be automatically generated. The work presented is a further step in the development of Virgilio, a Virtual Reality (VR) based system that has been designed to be a general purpose exploration tool for highly structured data. Virgilio visualizes the results(More)
Information visualization and knowledge visualization use comparable techniques and methods. Based on mapping rules, resource objects are translated into visual objects as meaningful representations, offering easy and comprehensive access. Whereas information visualization displays data objects and relations, knowledge visualization maps knowledge elements(More)
The still rapidly growing Internet offers new ways to reach an increasing number of people in all areas of life. More and more companies take advantage of this fact by advertising and selling their products through this new electronic media. Art is a great example for using this new approach, because the visualization is the most important aspect and the(More)
Semantic annotation of Web content is in the core of the current Semantic Web Activity. The operationalization of the Semantic Web raises the challenge on how to systematically integrate semantic annotations into generated Web application pages. In this paper, we present VizCo, a tool for systematically integrating RDF based semantically enriched(More)