Publication statistics

Pub. period:1995-2009
Pub. count:20
Number of co-authors:49


Number of publications with 3 favourite co-authors:

Christoph Rensing:5
Stephan Fischer:3
Norbert A. Streitz:3



Productive colleagues

Ralf Steinmetz's 3 most productive colleagues in number of publications:

Edward A. Fox:109
Tat-Seng Chua:53
Norbert A. Streitz:45

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Ralf Steinmetz

Has also published under the name of:
"R. Steinmetz"


Publications by Ralf Steinmetz (bibliography)

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Scholl, Philipp, Garca, Renato Domnguez, Bohnstedt, Doreen, Rensing, Christoph and Steinmetz, Ralf (2009): Towards language-independent web genre detection. In: Proceedings of the 2009 International Conference on the World Wide Web 2009. pp. 1157-1158. Available online

The term web genre denotes the type of a given web resource, in contrast to the topic of its content. In this research, we focus on recognizing the web genres blog, wiki and forum. We present a set of features that exploit the hierarchical structure of the web page's HTML mark-up and thus, in contrast to related approaches, do not depend on a linguistic analysis of the page's content. Our results show that it is possible to achieve a very good accuracy for a fully language independent detection of structured web genres.

© All rights reserved Scholl et al. and/or ACM Press

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Bohnstedt, Doreen, Scholl, Philipp, Rensing, Christoph and Steinmetz, Ralf (2009): Collaborative Semantic Tagging of Web Resources on the Basis of Individual Knowledge Networks. In: Proceedings of the 2009 Conference on User Modeling, Adaptation and Personalization 2009. pp. 379-384. Available online

The web is increasingly used as an information source to gain new knowledge but the management of found web pages can be a challenging task. Often social tagging systems are used for resource management. Besides the obvious use of tags -- organizing a collection of web resources -- they support functionalities like sharing resources with other users and recommendation of further possibly relevant web pages. This paper describes a novel application based on an extended tagging concept that can improve resource management and recommendation. Adding semantic information to tags and tagging fragments of web pages instead of whole web pages enhance the possibilities of well-known tagging applications. Individual knowledge networks are the basis of this tagging concept. A first prototype is developed as proof of concept.

© All rights reserved Bohnstedt et al. and/or their publisher

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Eckert, Julian, Ertogrul, Deniz, Miede, Andr, Repp, Nicolas and Steinmetz, Ralf (2008): Resource Planning Heuristics for Service-Oriented Workflows. In: 2008 IEEE / WIC / ACM International Conference on Web Intelligence WI 2008 9-12 December, 2008, Sydney, NSW, Australia. pp. 591-597. Available online

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Meyer, Marek, Hannappel, Alexander, Rensing, Christoph and Steinmetz, Ralf (2007): Automatic classification of didactic functions of e-learning resources. In: Lienhart, Rainer, Prasad, Anand R., Hanjalic, Alan, Choi, Sunghyun, Bailey, Brian P. and Sebe, Nicu (eds.) Proceedings of the 15th International Conference on Multimedia 2007 September 24-29, 2007, Augsburg, Germany. pp. 513-516. Available online

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Lehmann, Lasse, Aqqal, Abdelhak, Rensing, Christoph, Chikova, Pavlina, Leyking, Katrina and Steinmetz, Ralf (2006): A Content Modeling Approach as Basis for the Support of the Overall Content Creation Process. In: ICALT 2006 - Proceedings of the 6th IEEE International Conference on Advanced Learning Technologies 5-7 July, 2006, Kerkrade, The Netherlands. pp. 10-12. Available online

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Meyer, Marek, Rensing, Christoph and Steinmetz, Ralf (2006): Supporting Modularization and Aggregation of Learning Resources in a SCORM Compliance Mode. In: ICALT 2006 - Proceedings of the 6th IEEE International Conference on Advanced Learning Technologies 5-7 July, 2006, Kerkrade, The Netherlands. pp. 933-935. Available online

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Zhang, Hongjiang, Chua, Tat-Seng, Steinmetz, Ralf, Kankanhalli, Mohan S. and Wilcox, Lynn (eds.) Proceedings of the 13th ACM International Conference on Multimedia November 6-11, 2005, Singapore.

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Mueller-Tomfelde, C., Streitz, Norbert A. and Steinmetz, Ralf (2003): Sounds@Work - Auditory Displays for Interaction in Cooperative and Hybrid Environments. In: Stephanidis, Constantine (ed.) Proceedings of the Tenth International Conference on Human-Computer Interaction June 22-27, 2003, Crete, Greece. pp. 751-755.

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Tandler, Peter, Prante, Thorsten, Muller-Tomfelde, Christian, Streitz, Norbert A. and Steinmetz, Ralf (2001): Connectables: dynamic coupling of displays for the flexible creation of shared workspaces. In: Marks, Joe and Mynatt, Elizabeth D. (eds.) Proceedings of the 14th annual ACM symposium on User interface software and technology November 11 - 14, 2001, Orlando, Florida. pp. 11-20. Available online

We present the ConnecTable, a new mobile, networked and context-aware information appliance that provides affordances for pen-based individual and cooperative work as well as for the seamless transition between the two. In order to dynamically enlarge an interaction area for the purpose of shared use, a flexible coupling of displays has been realized that overcomes the restrictions of display sizes and borders. Two ConnecTable displays dynamically form a homogeneous display area when moved close to each other. The appropriate triggering signal comes from built-in sensors allowing users to temporally combine their individual displays to a larger shared one by a simple physical movement in space. Connected ConnecTables allow their users to work in parallel on an ad-hoc created shared workspace as well as exchanging information by simply shuffling objects from one display to the other. We discuss the user interface and related issues as well as the software architecture. We also present the physical realization of the ConnecTables.

© All rights reserved Tandler et al. and/or ACM Press

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El-Saddik, Abdulmotaleb, Fischer, Stephan and Steinmetz, Ralf (2001): Reusability and adaptability of interactive resources in Web-based educational systems. In ACM Journal of Educational Resources in Computing, 1 (1) p. 4.

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Shirmohammadi, Shervin, El-Saddik, Abdulmotaleb, Georganas, Nicolas D. and Steinmetz, Ralf (2001): Web-based multimedia tools for sharing educational resources. In ACM Journal of Educational Resources in Computing, 1 (1) p. 9.

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Fischer, Stephan and Steinmetz, Ralf (2000): Automatic Creation of Exercises in Adaptive Hypermedia Learning Systems. In: Hypertext 00 - Proceedings of the Eleventh ACM Conference on Hypertext and Hypermedia May 30 - June 03, 2000, San Antonio, Texas, USA. pp. 49-55. Available online

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Fox, Edward A., Effelsberg, Wolfgang, Georganas, Nicolas D., Heller, Rachelle S. and Steinmetz, Ralf (2000): Curricula and resources for courses about multimedia (panel session). In: ACM Multimedia 2000 2000. pp. 343-345. Available online

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Streitz, Norbert A., Geissler, Jorg, Holmer, Torsten, Konomi, Shin'ichi, Muller-Tomfelde, Christian, Reischl, Wolfgang, Rexroth, Petra, Seitz, Peter and Steinmetz, Ralf (1999): i-LAND: An Interactive Landscape for Creativity and Innovation. In: Altom, Mark W. and Williams, Marian G. (eds.) Proceedings of the ACM CHI 99 Human Factors in Computing Systems Conference May 15-20, 1999, Pittsburgh, Pennsylvania. pp. 120-127. Available online

We describe the i-LAND environment which constitutes an example of our vision of the workspaces of the future, in this case supporting cooperative work of dynamic teams with changing needs. i-LAND requires and provides new forms of human-computer interaction and new forms of computer-supported cooperative work. Its design is based on an integration of information and architectural spaces, implications of new work practices and an empirical requirements study informing our design. i-LAND consists of several 'roomware' components, i.e. computer-augmented objects integrating room elements with information technology. We present the current realization of i-LAND in terms of an interactive electronic wall, an interactive table, two computer-enhanced chairs, and two "bridges" for the Passage-mechanism. This is complemented by the description of the creativity support application and the technological infrastructure. The paper is accompanied by a video figure in the CHI'99 video program.

© All rights reserved Streitz et al. and/or ACM Press

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Seeberg, Cornelia, Steinacker, Achim, Reichenberger, Klaus, Fischer, Stephan and Steinmetz, Ralf (1999): Individual Tables of Contents in Web-Based Learning Systems. In: Hypertext 99 - Proceedings of the Tenth ACM Conference on Hypertext and Hypermedia February 21-25, 1999, Darmstadt, Germany. pp. 167-168. Available online

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Griwodz, Carsten, Zink, Michael, Liepert, Michael and Steinmetz, Ralf (1999): Position paper: Internet VoD cache server design. In: ACM Multimedia 1999 1999. pp. 123-126. Available online

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Dittmann, Jana, Stabenau, Mark and Steinmetz, Ralf (1998): Robust MPEG Video Watermarking Technologies. In: ACM Multimedia 1998 1998. pp. 71-80. Available online

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Griwodz, Carsten, Merkel, Oliver, Dittmann, Jana and Steinmetz, Ralf (1998): Protecting VoD the Easier Way. In: ACM Multimedia 1998 1998. pp. 21-28. Available online

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Ehrmanntraut, Michael, Hrder, Theo, Wittig, Hartmut and Steinmetz, Ralf (1996): The Personal Electronic Program Guide - Towards the Pre-Selection of Individual TV Programs. In: CIKM 96 - Proceedings of the Fifth International Conference on Information and Knowledge Management November 12 - 16, 1996, Rockville, Maryland, USA. pp. 243-250. Available online

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Nahrstedt, Klara and Steinmetz, Ralf (1995): Resource Management in Networked Multimedia Systems. In IEEE Computer, 28 (5) pp. 52-63.

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