Supporting device discovery and spontaneous interaction with spatial references

Gellersen, Hans; Fischer, Carl; Guinard, Dominique; Gostner, Roswitha; Kortuem, Gerd; Kray, Christian; Rukzio, Enrico; Streng, Sara

doi:10.1007/s00779-008-0206-3

Cited by 49 publications

(27 citation statements)

References 20 publications

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“…One of these studies is the research of Holzmann and Ferscha [12], who defined ZOI for contexts and specified the direction, distance spatial relationships between related sensors. Gellersen et al [19] expressed the quantitative relationships by the distance between devices and the orientation angle, and the qualitative relationships by the spatial arrangement of one device with respect to another. The Spatial Audit Policy Model (SAPM) introduced the concept of the spatial audit rule and supported the homogeneous representation of all spatial aspects involving objects and adapted information such as the user's position, with a 9-intersection topological approach [43].…”

Section: Comparison With Related Workmentioning

confidence: 99%

Modelling Spatio-Temporal Relevancy in Urban Context-Aware Pervasive Systems Using Voronoi Continuous Range Query and Multi-Interval Algebra

Samany‬

Delavar

Chrisman

et al. 2013

Mobile Information Systems

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Abstract. Space and time are two dominant factors in context-aware pervasive systems which determine whether an entity is related to the moving user or not. This paper specifically addresses the use of spatio-temporal relations for detecting spatiotemporally relevant contexts to the user. The main contribution of this work is that the proposed model is sensitive to the velocity and direction of the user and applies customized Multi Interval Algebra (MIA) with Voronoi Continuous Range Query (VCRQ) to introduce spatio-temporally relevant contexts according to their arrangement in space. In this implementation the Spatio-Temporal Relevancy Model for Context-Aware Systems (STRMCAS) helps the tourist to find his/her preferred areas that are spatio-temporally relevant. The experimental results in a scenario of tourist navigation are evaluated with respect to the accuracy of the model, performance time and satisfaction of users in 30 iterations of the algorithm. The evaluation process demonstrated the efficiency of the model in real-world applications.

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Section: Comparison With Related Workmentioning

confidence: 99%

Modelling Spatio-Temporal Relevancy in Urban Context-Aware Pervasive Systems Using Voronoi Continuous Range Query and Multi-Interval Algebra

Samany‬

Delavar

Chrisman

et al. 2013

Mobile Information Systems

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“…Each measure has appeared before in other ubicomp systems, and various researchers have applied one or more of these to proximity (e.g., [9][10][11][12][13][14][15][16][17][18][19]). Yet very few make use of all of them, let alone consider them as characterizing the interplay between entities in an ubicomp ecology.…”

Section: How Can We Adapt Proxemics To Ubicomp?mentioning

confidence: 99%

“…After a few moments of orienting the phone towards the display, the icon changes to show an image of his smart phone, indicating the two are connected [14,15,4]. Alternately, John could have just walked up to the display, pulled his phone out of his pocket, and touched the display with it [19].…”

Section: Connection Possibilitiesmentioning

confidence: 99%

Opportunities for Proxemic Interactions in Ubicomp (Keynote)

Greenberg

2011

Human-Computer Interaction – INTERACT 2011

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“…In addition, there is research on seamless interaction between heterogeneous devices in the area of Ubicomp (e.g. by Greenberg et al, 2011 andGellersen et al, 2009 …”

Section: Solutionsmentioning

confidence: 99%

The Role of Personal and Shared Displays in Scripted Collaborative Learning

Streng¹

2009

Human-Computer Interaction – INTERACT 2009

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iii ABSTRACTOver the last decades collaborative learning has gained immensely in importance and popularity due to its high potential. Unfortunately, learners rarely engage in effective learning activities unless they are provided with instructional support. In order to maximize learning outcomes it is therefore advisable to structure collaborative learning sessions. One way of doing this is using collaboration scripts, which define a sequence of activities to be carried out by the learners. The field of computer-supported collaborative learning (CSCL) produced a variety of collaboration scripts that proved to have positive effects on learning outcomes. These scripts provide detailed descriptions of successful learning scenarios and are therefore used as foundation for this thesis.In many cases computers are used to support collaborative learning. Traditional personal computers are often chosen for this purpose. However, during the last decades new technologies have emerged, which seem to be better suited for co-located collaboration than personal computers. Large interactive displays, for example, allow a number of people to work simultaneously on the same surface while being highly aware of the co-learners' actions. There are also multi-display environments that provide several workspaces, some of which may be shared, others may be personal. However, there is a lack of knowledge regarding the influence of different display types on group processes. For instance, it remains unclear in which cases shareable user interfaces should replace traditional single-user devices and when both personal and shared workspaces should be provided. This dissertation therefore explores the role of personal and shared workspaces in various situations in the area of collaborative learning. The research questions include the choice of technological devices, the seating arrangement as well as how user interfaces can be designed to guide learners.To investigate these questions a two-fold approach was chosen. First, a framework was developed, which supports the implementation of scripted collaborative learning applications. Second, different prototypes were implemented to explore the research questions. Each prototype is based on at least one collaboration script. The result is a set of studies, which contribute to answering the above-mentioned research questions. With regard to the choice of display environment the studies showed several reasons for integrating personal devices such as laptops. Pure tabletop applications with around-the-table seating arrangements whose benefits for collaboration are widely discussed in the relevant literature revealed severe drawbacks for text-based learning activities. The combination of laptops and an interactive wall display, on the other hand, turned out to be a suitable display environment for collaborative learning in several cases. In addition, the thesis presents several ways of designing the user interface in a way that guides learners through collaboration scripts. ACKNOWLEDGMENTST...

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Supporting device discovery and spontaneous interaction with spatial references

Cited by 49 publications

References 20 publications

Modelling Spatio-Temporal Relevancy in Urban Context-Aware Pervasive Systems Using Voronoi Continuous Range Query and Multi-Interval Algebra

Modelling Spatio-Temporal Relevancy in Urban Context-Aware Pervasive Systems Using Voronoi Continuous Range Query and Multi-Interval Algebra

Opportunities for Proxemic Interactions in Ubicomp (Keynote)

The Role of Personal and Shared Displays in Scripted Collaborative Learning

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