CHI 2011 workshop, Vancouver, Canada, May 7, 2011

Accepted Submissions

Carmelo Ardito, Paolo Buono, Maria Francesca Costabile and Antonella De Angeli

Towards a Framework for Evaluating Multitouch Public Displays

In the last few years, we have designed software applications for multitouch wall displays which provide information and/or services in different contexts, such as cultural heritage, tourism, and public events. While many of the systems proposed in the literature concentrated primarily on entertainment purposes, we are moving towards more functional applications and we are planning a set of empirical studies to evaluate their impact once used in the field. In this position paper we describe some challenges that emerged during our work and propose some initial variables which can inform the definition of an evaluation framework specific for public display applications. VIEW FULL PAPER


Tom Barker, Nicole Gardner, M. Hank Haeusler and Martin Tomitsch

Infostructures – Embedding Media Facades in Public Transport

In this paper we present an investigation into how new screen technologies, such as media facades, can contribute to improving the quality of existing public transport environments. We propose the notion of ‘info’structures, which describes the integration of smart, or responsive, digital information into the existing physical fabric via media facades in a coherent architectural and spatial context. The paper presents two design explorations to investigate possible uses of media facades in public transport environments. Based on these two examples we discuss how digital technologies and networked communications can transform and augment public transport infrastructure, allowing new forms of intelligent, adaptive, interactive and self-aware architecture to be developed. VIEW FULL PAPER


Paolo Battino Viterbo, Valentina Barsotti and Andrew Vande Moere

Situated & Social Feedback in the City

In this paper, we investigate the use of public display as a situated feedback medium that is able to reveal the relationship between local activities and their global impact, within the context of the urban environment the display is located in. The increasing amount of urban datasets made available to the public today has become a valuable resource to allow city inhabitants to understand the true impact of their daily life. But the complexity, specificity, interrelatedness and scale of these datasets pose serious challenges in terms of how to engage all stakeholders in such relatively complex issues that are nonetheless relevant to the everyday experience of the public environment. We propose a concept in which smart metering, situated data visualization and immediate feedback are tightly interrelated. The concept aims at transforming urban data into persuasive messages that encourage inhabitants to relate daily activities with their impact, while also providing data-driven evidence for these claims. VIEW FULL PAPER


Gilbert Beyer, Florian Alt and Jörg Müller

On the Impact of Non-flat Screens on the Interaction with Public Displays

With decreasing prices for display technologies and bendable displays becoming commercially available, novel forms of public displays in arbitrary shapes emerge. However, different shapes impact on how users behave in the vicinity of such displays and how they interact with them. With our research we take a first step towards exploring these novel displays. We present findings from an initial study with cylindrical displays and discuss to what extent findings can be generalized towards other forms of public displays. VIEW FULL PAPER


E. Biddiss, P. McKeever and G. Shea

The Art of Waiting – Interactive Displays in Healthcare Settings

Waiting in healthcare settings can be an anxious and fearful experience for children and their families. Opportunities for play are an important part of child-friendly healthcare and have been shown to reduce waiting anxiety. Conventional toys and games, however, usually have contact surfaces through which infections may be passed. Additionally, they often require fine motor movements which may not be available to children with disabilities. In this paper, we describe the design of an accessible and interactive large display to meet the needs of a hospital waiting room. We discuss the detailed design requirements, the participatory process by which the design was developed, and our plans to evaluate the efficacy of the interactive display for reducing waiting anxiety in healthcare settings. VIEW FULL PAPER


Roberto Calderon, Sidney Fels, Rodger Lea and Oliver Neumann

Harvesting Communal Interaction with Public Displays through Place-Dependent ''Community Displays''

We explore the concept of ''community displays'' based on the analogy of community gardens, where information is comunally owned and shared. We propose that community displays be designed as essential part of public space, communal and shared, local and location dependent, needing nurturing, and able to produce physical and aesthetic outcomes. This can be achieved by conceptualizing displays as physically owned and bound to the place they belong to, but formed of pixels that belong to a co-located community. Finally, we propose that community displays should focus on sensing and visualizing community member relationships, visits, cooperations and nurturing actions in order to lower the complexity that arises when displays are used in public settings. VIEW FULL PAPER


Dave Colangelo and Patricio Davila

E-Tower and Public Space: Transforming Space through Reactive Architecture and Personal Mobile Devices

In this paper we describe the theoretical background of E-Tower, a mobile phone based interactive installation with the CN Tower for Toronto’s Nuit Blanche 2010. VIEW FULL PAPER


N.S.C Dalton

Towards Understanding the Role of the Environment in the Triumvirate of Human, Computer and Environment Interactions with Large Displays

There has been little research into the role of the spatial properties of the environment and their effect on interaction. In particular, the evaluation of largescale ambient displays is problematic without a framework for understanding the influence of the built environment on interaction. This paper proposes that theories from architecture, such as space syntax, could be developed for analyzing the interaction between highly mobile users and large-scale displays.


Sven Gehring, Sebastian Boring and Alexander Wiethoff

Multi-User Painting on Media Facades through Live-Video on Mobile Devices

Media facades in urban spaces offer great potential for new forms of collaborative multi-user interaction. We present a way to directly interact with facades at-a-distance through live video on mobile devices. We extend the Touch Projector interface to accommodate multiple users by showing individual content on the mobile display that would otherwise clutter the facade's canvas or distract other users. To demonstrate our concept, we built an application that allows for simultaneous painting on a facade. We gathered informal feedback during the ARS Electronica Festival in Linz, Austria and found that our interaction technique is (1) considered easy-to-learn, but (2) may leave users unaware of the actions of others on the same canvas. VIEW FULL PAPER


Jessica Hullman, Mick McQuaid, Yi-Wei Chia, Tze-Hsiang Lin and Zhang Zhang

Chance-It: Motivating Collaborative Exploration using Spatial Layout on a Multitouch Surface

This paper describes the design and use of Chance-It, a novel tabletop application that uses a strategy based on spatial layouts to promote collaborative exploration of digital content on a multitouch table used sequentially by users in a shared space. VIEW FULL PAPER


Silvan Linn, Ryan Spicer and Aisling Kelliher

Discursive Architecture: Integrating Buildings, Displays and Text Messages

The built environment has increasingly become a canvas for digital augmentation where the public nature of urban space creates an ideal setting for outward reflection and the exchange of ideas. We present the design and installation of
Your ____ here, a large projection display for site-specific participatory interventions, and indicate its potential as a simple, yet provocative public engagement system. VIEW FULL PAPER


Kenneth Newby, Aleksandra Dulic, and Liane Davison

Surrey Urban Screen: A Collaborative Initiative between Artists and the Surrey Art Gallery

Surrey Urban Screen is Canada’s largest non-commercial projection screen venue, dedicated to presenting digital art forms. It offers an opportunity for collaboration between its host, the Surrey Art Gallery, invited artists, and residential/commuter audiences. Launched in 2010, this venue is sited in context to a recreation centre, a diverse demographic ranging from refugees, university students, and affluent workers. Transience, created by Kenneth Newby and Aleksandra Dulic, used a massive database of sound and images. The artwork both performed and transformed over time using a trigger of the passing SkyTrain, and included broadcast audio on a local FM radio frequency.


Tongyan Ning, Jörg Müller, Robert Walter, Gilles Bailly, Chat Wacharamanotham, Florian Alt and Jan Borchers

No Need to Stop: Menu Techniques for Passing by Public Displays

Although public displays are increasingly prevalent in public spaces, they are generally not interactive. Menu techniques can enable users to select what is interesting to them. Current touch screen techniques are unsuitable, because for many public displays, users merely pass by and rarely stop. We investigate command selection in this new context of passing-by interaction, in which users only have a few seconds to interact. We present six hands-free gestural techniques and evaluate them in a Wizard-of-Oz experiment. Based on the results of this study, we provide design recommendations for menu selection in passing-by situations. VIEW FULL PAPER


Timo Ojala, Vassilis Kostakos and Hannu Kukka

It’s a Jungle Out There: Fantasy and Reality of Evaluating Public Displays “in the Wild”

We present a summary of our experiences with a longitudinal deployment of interactive public displays in a city center. We argue that such deployments offer external validity and highlight a number of issues overlooked by lab studies. We also point out that these benefits come with substantial cost and difficulties. VIEW FULL PAPER


Geoffrey Shea and Michael Longford

Identity Play in an Artistic, Interactive Urban Projection

In this paper we review some emerging social interactions which are stimulated by the presence of large, public display screens. In particular, we consider the impact on the viewer’s perception of identity through the interaction of large screens with the private small screens of personal handheld devices, such as smart phones. Our research emerges from our experience creating Tentacles, a large screen public projection controlled by users’ phones.


Christian Steins, Christoph Peschel, Daniel Warnke and Alan Borning

Playful Civic Engagement Using Large Public Displays

We investigate the use of large public displays for interfaces that foster engagement with important public issues. We are interested in playful interfaces that invite casual passers-by to state an opinion or pose a question, and that gently point to possibilities for more information and action. We describe a set of possible designs, and the initial implementation of one based on a “refrigerator magnet” metaphor. VIEW FULL PAPER


Gernot Tscherteu and Martin Tomitsch

Designing Urban Media Environments as Cultural Spaces

Many urban media installations neglect the fact that the installations will be used or perceived in a cultural space, leading to a conflict between content and urban setting. To address this shortcoming this paper discusses the importance of considering cultural aspects of public space when introducing urban media interventions into urban life. We propose the notion of urban media environments, which consist of media artefacts, other artefacts, and modes of interaction and perception, to emphasise the relevance of cultural aspects. The paper concludes with five considerations that can lead to a more successful and sustainable strategy for designing media interventions in urban life. VIEW FULL PAPER


Mettina Veenstra, Marije Kanis, Maarten Groen, Wouter Meys and Wout Slakhorst

Beyond Advertising: Large Displays for Supporting People’s Needs and Activities in Public Space

This paper explores how displays can be used to support human needs and activities in public spaces rather than be employed for commercial purposes only. Based on our analysis of screen usage around the world, eight different categories of usage are described and motivated. For the purpose of illustration, this paper discusses the results of a user study of BiebBeep, a touch screen application built to enhance the social and information function of a library.