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3rd Workshop on Location Awareness for Mixed and Dual Reality (LAMDa’13)
Tim Schwartz, Gerrit Kahl, Sally Applin and Eyal Dim
Proceedings of the International Conference on Intelligent User Interfaces 2013 (IUI'13)
This workshop explores the interactions between location awareness and Dual/Mixed/PolySocial Reality in smart (instrumented) environments and their impact on culture and society. The main scope of this workshop is to explore how a Dual/Mixed/PolySocial Reality paradigm can be used to improve applications in smart environments and, by extension, which new possibilities can be opened up by these paradigms. These may include positioning methods and location-based services using the DR paradigm, such as navigation services and group interaction services (location-based social signal processing) as well as agent based intermediaries to offset errant voluminous multiplexed communication messaging. The workshop is also open to discuss sensor and actuator technologies that are being developed to foster the growth of interaction possibilities in smart environments.
Fusion of Multiple Datasets to Support Location-based Services in Retail Applications
Gerrit Kahl, Tim Schwartz and Boris Brandherm
Proceedings of the 3rd International Workshop on Location Awareness in Mixed and Dual Reality in Conjunction with IUI 2013
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The accuracy of a positioning system is often coupled with its costs, e.g. a costly (and dense) infrastructure leads to a higher positioning accuracy. A current trend in indoor positioning are so-called opportunistic systems, which use an already existent infrastructure, e.g. WiFi access points. These systems are known for an accuracy in the range of several meters. In a retail scenario, this accuracy may be sufficient for so-called macro navigation (finding the right area in a shop of a specific item) but insufficient for micro navigation, i.e. finding an item in a shelf. Especially location-based services cannot be established due to the inaccuracy of the positioning. In addition to this, installed sensors in such environments can detect user interactions, however they often cannot identify the person who is interacting. For example, in our Innovative Retail Lab (IRL), shelves are instrumented with RFID readers, which enable the detection of product placing or removal without identifying the interacting user. In this paper, we describe a method that enables the fusion of such an oppor- tunistic positioning system with shelf interactions and user-related information, such as the contents of a shopping list, to derive a better position estimation on the one hand and an identification and disambiguation of user interactions on the other. This fusion approach is based on Dynamic Bayesian Networks (DBNs). The paper points out how the fusion can be used to provide location-based services.
Event Broadcasting Service -- An Event-Based Communication Infrastructure
Gerrit Kahl, Christian Bürckert, Lübomira Spassova and Tim Schwartz
Proceedings of the Second International Workshop on Location Awareness for Mixed and Dual Reality (LAMDa'12) in Conjunction with IUI'12
In this paper, we present the Event Broadcasting Service (EBS), which can be used in instrumented environments to exchange data between different devices and services. The EBS can be used with almost all operating systems and programming lan- guages. It enables real-time exchange of large data sets and provides effective debugging tools. Example applications for smart spaces, such as a visualization dashboard and location observation, are presented.
2nd Workshop on Location Awareness for Mixed and Dual Reality (LAMDa'12)
Tim Schwartz, Gerrit Kahl, Teemu Pulkkinen, Petteri Nurmi, Eyal Dim and Sally Applin
IUI '12: Proceedings of the 2012 ACM international conference on Intelligent User Interfaces. International Conference on Intelligent User Interfaces (IUI-12)
The workshop explores the interactions between location awareness and Dual/Mixed Reality in smart environments and the impact on culture and society. The main scope of this workshop is: How can the Dual Reality paradigm be used to improve applications in smart environments and which new possibilities are opened up by these paradigms? This includes positioning methods and location-based services using the DR paradigm, such as navigation services and group interaction services (location-based social signal processing). The workshop is also open to discuss sensor and actuator technologies that may help to realize the synchronization of the virtual and real world. The main scope of this workshop is: How can the Dual Reality paradigm be used to improve location-based and socially-aware services and other applications in smart environments?
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
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.
PEG und MaMiNa: Erkennung von Zeigegesten in einer instrumentierten Umgebung und auf Landmarken basierte Wegsuche zur Navigation
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Advised Student Projects
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