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M.Sc. Gerrit Kahl

	Address: Saarland University FR 6.2 - Computer Science P.O. Box 15 11 50 D-66041 Saarbruecken, Germany Coordinates: Building E 1 1 , Room 123 Numbers: Tel: +49 681 302 - 0681 85775 2866 Fax: +49 681 302 - 4136

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Publications

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2011

IUI 2011 Workshop on Location Awareness for Mixed and Dual Reality ( LAMDa )
Gerrit Kahl, Boris Brandherm, Tim Schwartz, Andreas Forsblom, Eyal Dim and Petteri Nurmi
2011 International Conference on Intelligent User Interfaces

2008

Integrated Speaker Classification for Mobile Shopping Applications
Michael Feld and Gerrit Kahl
Proceedings of the 5th International Conference on Adaptive Hypermedia and Adaptive Web-Based Systems (AH 2008), July 28 - August 1, 2008, Hannover, Germany
[ DOWNLOAD NOTE ] [BibTeX] show abstract
This paper presents an approach to how speaker classification can be used to enable new ways for recommender systems in a mobile shopping environment to bootstrap user models and avoid common problems such as the "early rater". In a concrete shopping scenario, we introduce the speech-controlled Mobile ShopAssist demonstrator that allows a new customer to more quickly find a product that fulfills his or her demographic group’s specific requirements by exploiting features extracted from speech using the AGENDER speaker classification system. We propose a method for computing preference scores based on the user's profile and demonstrate how the application’s GUI can be adapted to deliver the recommendations to the user.

Three Output Planning Strategies for Use in Context-aware Computing Scenarios
Gerrit Kahl, Rainer Wasinger, Tim Schwartz, and Lübomira Spassova
Proceedings of the AISB 2008 Symposium on Multimodal Output Generation (MOG 2008), April 3 - April 4, 2008, Aberdeen, Scotland, UK
[pdf] [BibTeX] show abstract
In everyday life, it is useful for mobile devices like cell phones and PDAs to have an understanding of their user's surrounding context. Presentation output planning is one area where such context can be used to optimally adapt information to a user's current situational context. This paper outlines the architecture of a context-aware output planning module, as well as the design and implementation of three output generation strategies: user-define, symmetric multimodal, and context-based output planning. These strategies are responsible for selecting the best suited modalities (e.g. speech, gesture, text), for presenting information to a user situated in a public environment such as a shopping mall. A central point of this paper is the identification of context with finite resources to obtain a private and/or public output. We show via a wording demonstrator the extent to which such factors can, with readily available technology, be incorporated into a system. The paper also outlines the set of reactions that a system might take when given context information on the user and the environment.

2007

PEG und MaMiNa: Erkennung von Zeigegesten in einer instrumentierten Umgebung und auf Landmarken basierte Wegsuche zur Navigation
Gerrit Kahl
[pdf]

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Lectures

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Advised Student Projects

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Finished Student Projects