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Dr.-Ing. Michael Kruppa


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My research interests include (but are not limited to): Mobile- and Ubiquitous Computing, Localization Technolgy, Usability Evaluation, Information Retrieval, Interactive Systems, Life-Like Characters, Entertainment Computing and Intelligent User Interfaces.

I"m currently working for the SmartSenior project at the Intelligent User Interfaces Group at the DFKI. The project is a large scale project with a consortium of 28 partners aiming at the realization of technology allowing elderly people to life an independent life. My part in the project is to develop a combined indoor- and outdoor localisation system for emergency situations.

Prior to this I was working in the Dilia project . The project addressed the problem of generating a natural, effective user interface for digital libraries (you can see a very preliminary prototype of an author index visualization currently showing my actual co-author index right on top of my publications list or here in full screen). Prior to this project I was involved in the MeMo project in which we pursued the goal of developing a workbench for automatic usability analysis of software systems (either GUI or speech based systems). Before working for the MeMo project I was working on visualization techniques for groups and group relations to be used on mobile devices. This work was done as part of the developments in the SharedLife project.

During my Phd Thesis I was working for the PEACH project. The project was investigating various ways of technology usage in a museum context. One of the main goals was to generate an engaging experience especially for younger museum visitors by integrating modern presentation and interaction methodology. As part of the project I developed a mobile museum guide integrating virtual characters as personal companions(see more information below).

I'm also involved in the spin-off company YocoY which is curently developing a multi-lingual dialog system allowing users to break the communication barrier and having real communications (not only single words or phrases) in a foreign language they do not speak at all. The product is based on the results of the project Compass 2008 in which I was also involved. Currently, the Yocoy demonstrator includes Chinese, English, German and Italian as both input and output languages. My main responsibility in Compass 2008 was the development of the User Interface and this is also my main focus in YocoY.

I'm a former member of the International Post-Graduate College Language Technology and Cognitive Systems. As part of my Graduate College Membership, I have spend 6 month at the University of Sydney, working together with Judy Kay and Bob Kummerfeld (extensive photo coverage can be found here).

In 2005 I finished my PhD Thesis on Migrating Characters. Migrating Characters, as opposed to common life-like characters, are not fixed to a single device or purpose. Instead, they offer a unique and coherent interaction metaphor in both mobile and stationary scenarios. The Characters are capable of migrating from one device to another, for example from a mobile device (e.g. a Personal Digital Assistant) to a stationary device (see also the old, but still working online demo). Whenever necessary, the characters can transit to another device (for example, if the target device offers better opportunities for presenting a certain type of media). The characters are used as a system independent interaction metaphor but also as a n anchorpoint for users while watching presentations spanning over several devices. Furthermore, the characters are also used to perform references to physical objects. They may for example "jump" from the users mobile device onto a wall, and then move close to the object to which they try to refer. This is realized by using a spatial audio system in combination with a steerable projector, mounted on the ceyling. The list of publications below gives an overview on the Migrating Characters and related technology. For further information, see also my flash website.


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Emergency Indoor and Outdoor Localization
Michael Kruppa
Proceedings of the 4. Deutscher AAL-Kongress 2011
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Benutzer-Lokalisierung in unterschiedlichen Umgebungen
Michael Kruppa
Proceedings of the 3. Deutscher AAL-Kongress 2010
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DiLiA - A DIGITAL LIBRARY ASSISTANT - A new approach to information discovery through information extraction and Visualization
Inessa Seifert and Kathrin Eichler and Holmer Hemsen and Sven Schmeier and Michael Kruppa and Günter Neumann and Norbert Reithinger
Joaquim Filipe; Kecheng Liu (Hrsg.). International Conference on Knowledge Management and Information Sharing. International Conference on Knowledge Management and Information Sharing (KMIS-09), located at The International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, October 6-8, Madiera, Portugal, INSTICC Press, 2009
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A Pool of Topics: Interactive Relational Topic Visualization for Information Discovery.
Inessa Seifert and Michael Kruppa
Maulin Huang et al (Hrsg.). Visual Information Communication. VINCI-09, September 24-25, Sydney, Australia, Springer, 2009.
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Automated Usability Evaluation during Model-based Interactive System Development
Sebastian Feuerstack, Marco Blumendorf, Maximilian Kern, Michael Kruppa, Michael Quade and Mathias Runge
Proceedings of TAMODIA 2008 in conjunction with Engineering Interactive Systems 2008
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MeMo Workbench for Semi-Automated Usability Testing
Klaus-Peter Engelbrecht, Michael Kruppa, Sebastian Möller and Michael Quade
Proceedings of Interspeech 2008 Conference
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Looking for Unexpected Consequences of Interface Design Decisions: The MeMo Workbench
Anthony Jameson, Angela Mahr, Michael Kruppa, Andreas Rieger, Robert Schleicher
6th International workshop on TAsk MOdels and DIAgrams (TAMODIA 2007)
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Adaptive, Intelligent Presentation of Information for the Museum Visitor in PEACH
Oliviero Stock, Massimo Zancanaro, Paulo Busetta, Charles Callaway, Antonio Krüger, Michael Kruppa, Tsvi Kuflik, Elena Not and Cesare Rocchi
UMUAI (5/2007) - User Modeling and User-Adapted Interaction (Winner of the James Chen Best Paper Award 2007)
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Integration between mobile and stationary devices
Antonio Krüger, Michael Kruppa
O. Stock, M. Zancanaro (Eds.) : PEACH - Intelligent Interfaces for Museum Visits. Intelligent Interfaces for Museum Visits (Cognitive Technologies), 04/2007, Springer Verlag Berlin, Heidelberg, ISBN 978-3540687542

Adaptive Mobile Guides
Antonio Krüger, Jörg Baus, Dominik Heckmann, Michael Kruppa, Rainer Wasinger
P. Brusilovsky, A. Kobsa, and W. Nejdl (Eds.): The Adaptive Web, LNCS 4321, pp. 521–549, 2007. Springer-Verlag Berlin Heidelberg
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Migrating Characters: Effective User Guidance in Instrumented Environments
Michael Kruppa
Akademische Verlagsgesellschaft Aka GmbH, Berlin, ISBN 3-89838-301-6 and ISBN 1-58603-667-X
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The Virtual Room Inhabitant – Intuitive Interaction With Intelligent Environments
Michael Kruppa, Lübomira Spassova, Michael Schmitz
Proceedings of the 18th Australian Joint Conference on Artificial Intelligence (AI05)
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Performing Physical Object References with Migrating Virtual Characters
Michael Kruppa, Antonio Krüger
Proceedings of the first conference on INtelligent TEchnologies for interactive enterTAINment (INTETAIN2005)
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Parallel Presentations for Heterogenous User Groups - An Initial User Study
Michael Kruppa and Ilhan Aslan
Proceedings of the first conference on INtelligent TEchnologies for interactive enterTAINment (INTETAIN2005)
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Migrating Characters Performing Explicit Physical Object References
Michael Kruppa
ABIS 2005 workshop
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Towards explicit physical object referencing
Michael Kruppa
Doctoral Consortium at User Modeling 2005, Edinburgh
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Towards mobile tour guides supporting collaborative learning in small groups
Michael Kruppa, Andrew Lum, William Niu, Miriam Weinel
PIA workshop in conjunction with User Modeling 2005, Edinburgh
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A userstudy on parallel presentations for heterogenous user groups
Michael Kruppa
Technical Report 563, University of Sydney, ISBN 1-86487-706-5
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The Virtual Room Inhabitant
Michael Kruppa, Lübomira Spassova, Michael Schmitz
2nd Workshop on Multi-User and Ubiquitous User Interfaces (MU3I)
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Adaptive multimodal presentation of multimedia content in museum scenarios
Michael Kruppa, Dominik Heckmann, Antonio Krüger
KI Journal, volume 01/05, pp 56-59
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The Museum Visit: Generating Seamless Personalized Presentations on Multiple Devices
Cesare Rocchi, Oliviero Stock, Massimo Zancanaro, Michael Kruppa, Antonio Krüger
Proceedings of IUI 2004, pp. 316-318
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The better remote control – Multiuser interaction with public displays
Michael Kruppa
Proceedings of the MU3I workshop at IUI 2004
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Seamless Personalized TV-like Presentations on Mobile and Stationary Devices in a Museum
Michael Kruppa , Antonio Krüger, Cesare Rocchi, Oliviero Stock, Massimo Zancanaro
Proceedings of ICHIM 2003, Paris
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Concepts for a combined use of Personal Digital Assistants and large remote displays
Michael Kruppa, Antonio Krüger
Proceedings of SimVis 2003, Pages 349-361, Magdeburg
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Readapting Multimodal Presentations to Heterogenous User Groups
Antonio Krüger, Michael Kruppa, Christian Müller, Rainer Wasinger
Notes of the AAAI-Workshop on Intelligent and Situation-Aware Media and Presentations, Technical Report WS-02-08, AAAI Press, 2002, pp. 46-54.
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ARREAL- A mobile pedestrian navigation System built from standard hardware components
Michael Kruppa
Diplomarbeit (Master's Thesis)
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