363 research outputs found

    Future wireless applications for a networked city: services for visitors and residents

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    Future wireless networks will offer near-ubiquitous high-bandwidth communications to mobile users. In addition, the accurate position of users will be known, either through network services or via additional sensing devices such as GPS. These characteristics of future mobile environments will enable the development of location-aware and, more generally, context-sensitive applications. In an attempt to explore the system, application, and user issues associated with the development and deployment of such applications, we began to develop the Lancaster GUIDE system in early 1997, finishing the first phase of the project in 1999. In its entirety, GUIDE comprises a citywide wireless network based on 802.11, a context-sensitive tour guide application with, crucially, significant content, and a set of supporting distributed systems services. Uniquely in the field, GUIDE has been evaluated using members of the general public, and we have gained significant experience in the design of usable context-sensitive applications. We focus on the applications and supporting infrastructure that will form part of GUIDE II, the successor to the GUIDE system. These developments are designed to expand GUIDE outside the tour guide domain, and to provide applications and services for residents of the city of Lancaster, offering a vision of the future mobile environments that will emerge once ubiquitous high-bandwidth coverage is available in most cities

    Mobile-awareness:designing for mobile interactive systems

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    In recent years, we have witnessed a significant increase in the availability and adoption of mobile devices with wireless communications capabilities. Such devices can be used as the end-system in network-based (single or multi

    XML Document Adaptation Queries (XDAQ)

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    Adaptive web applications combine data retrieval on the web with reasoning so as to generate context dependent contents. The data is retrieved either as content or as context specifications. Content data is, for example, fragments of a textbook or e-commerce catalogue, whereas context data is, for example, a user model or a device profile. Current adaptive web applications are often implemented using ad hoc and heterogeneous techniques. This paper describes a novel approach called ”XML Document Adaptation Queries (XDAQ)” requiring less heterogeneous software components. The approach is based on using a web query language for data retrieval (content as well as context) and on a novel generic formalism to express adaptation. The approach is generic in the sense that it is applicable with all web query and transformation languages, for example with XQuery and XSLT

    Public and Situated Displays to Support Communities

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    This workshop will bring together researchers and practitioners working with public displays in communities to share experiences and to identify research themes and issues arising from social and community use of public and situated displays, while increasing awareness of various relevant projects and encouraging collaboration

    Supporting the Mobile In-situ Authoring of Locative Media in Rural Places: Design and Expert Evaluation of the SMAT app

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    Providing users with carefully authored Locative media experiences (which can be consumed via their GPS equipped smartphones or tablets) has significant potential for fostering a strong engagement with their current surroundings. However, the availability of mobile tools to support the authoring of locative media experiences in-situ, and by non-technical users, remains scarce. In this article we present the design and field-trial expert evaluation of a mobile app developed under the SHARC project (Investigating Technology Support for the Shared Curation of Local History in a Rural Community). The app is named SMAT (SHARC Mobile Authoring Tool) and supports the authoring of Locative Media experiences with a focus on the creation of POIs (Points of Interest) and associated geo-fences which trigger the pushed delivery of media items such as photos, audio clips, etc. One important requirement of SMAT is the ability to support authoring in places where connectivity is intermittent or unavailable, e.g. many rural areas

    Network layer access control for context-aware IPv6 applications

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    As part of the Lancaster GUIDE II project, we have developed a novel wireless access point protocol designed to support the development of next generation mobile context-aware applications in our local environs. Once deployed, this architecture will allow ordinary citizens secure, accountable and convenient access to a set of tailored applications including location, multimedia and context based services, and the public Internet. Our architecture utilises packet marking and network level packet filtering techniques within a modified Mobile IPv6 protocol stack to perform access control over a range of wireless network technologies. In this paper, we describe the rationale for, and components of, our architecture and contrast our approach with other state-of-the- art systems. The paper also contains details of our current implementation work, including preliminary performance measurements

    Exploring Bluetooth based Mobile Phone Interaction with the Hermes Photo Display

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    One of the most promising possibilities for supporting user interaction with public displays is the use of personal mobile phones. Furthermore, by utilising Bluetooth users should have the capability to interact with displays without incurring personal financial connectivity costs. However, despite the relative maturity of Bluetooth as a standard and its widespread adoption in today’s mobile phones, little exploration seems to have taken place in this area - despite its apparent significant potential. This paper describe the findings of an exploratory study nvolving our Hermes Photo Display which has been extended to enable users with a suitable phone to both send and receive pictures over Bluetooth. We present both the technical challenges of working with Bluetooth and, through our user study, we present initial insights into general user acceptability issues and the potential for such a display to facilitate notions of community

    Content analysis of a rural community’s interaction with its cultural heritage through a longitudinal display deployment

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    In this paper we present content analysis related to our longitudinal deployment of the Wray Photo Display within a rural village community. The situated display based system enables village residents to upload images (typically photos) relating to their community for viewing by fellow residents and visitors to the village. Residents can also provide a response to pictures via the system's commenting feature. A content analysis has revealed that the majority of images uploaded to the system relate to the cultural heritage of the village (across both 'past' and 'contemporary' categories). Furthermore, analysis of the comments relating to these images reveals a wide range of use, including: clarification (e.g. the subject of the photo or the period when it was taken), identification (e.g. identification of relatives in the photo) and narratives (e.g. "...my mum & dad rented from Mr Phillipson who lived next door...")

    Who needs a doctor anymore?:risks and promise of mobile health Apps

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    Personal health monitoring is a hot topic. With bracelets and other wearables, we keep track of our heart rate, exercising, sleep, and more. We are becoming our own doctors and coaches. Improving citizens' health brings the society significant savings, besides healthier citizens. Health data also has important value beyond healthcare, e.g. in insurance and advertising. However, risks on privacy, data management, information interpretation and incorrect health diagnosis and treatments exist. This panel discusses the promise and risks related to mobile health apps, highlighting both research and industrial aspects related to the current trends

    Just-In-Place Information for Mobile Device Interfaces

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    Abstract. This paper addresses the potentials of context sensitivity for making mobile device interfaces less complex and easier to interact with. Based on a semiotic approach to information representation, it is argued that the design of mobile device interfaces can benefit from spatial and temporal indexicality, reducing information complexity and interaction space of the device while focusing on information and functionality relevant here and now. Illustrating this approach, a series of design sketches show the possible redesign of an existing web and wap-based information service.
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