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442
What We Talk About When We Talk About Context
- Personal and Ubiquitous Computing
, 2004
"... The emergence of ubiquitous computing as a new design paradigm poses significant challenges for HCI and interaction design. Traditionally, human-computer interaction has taken place within a constrained and well-understood domain of experience single users sitting at desks and interacting with con ..."
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Cited by 358 (1 self)
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The emergence of ubiquitous computing as a new design paradigm poses significant challenges for HCI and interaction design. Traditionally, human-computer interaction has taken place within a constrained and well-understood domain of experience single users sitting at desks and interacting with conventionally-designed computers employing screens, keyboards and mice for interaction. New opportunities have engendered considerable interest in context-aware computing computational systems that can sense and respond to aspects of the settings in which they are used. However, considerable confusion surrounds the notion of context what it means, what it includes, and what role it plays in interactive systems. This paper suggests that the representational stance implied by conventional interpretations of context misinterprets the role of context in everyday human activity, and proposes an alternative model that suggests different directions for design.
Experiences of developing and deploying a context-aware tourist guide: the GUIDE project
, 2000
"... The GUIDE system has been developed to provide city visitors with a hand-held context-aware tourist guide. The system has been successfully deployed in a major tourist destination and is currently at the stage where it is publicly available to visitors who wish to explore the city. Reaching this sta ..."
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Cited by 228 (8 self)
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The GUIDE system has been developed to provide city visitors with a hand-held context-aware tourist guide. The system has been successfully deployed in a major tourist destination and is currently at the stage where it is publicly available to visitors who wish to explore the city. Reaching this stage has been the culmination of a number of distinct research efforts. In more detail, the development of GUIDE has involved: capturing a real set of application requirements, investigating the properties of a cell-based wireless communications technology in a built-up environment and deploying a network based on this technology around the city, designing and populating an information model to represent attractions and key buildings within the city, prototyping the development of a distributed application running across portable GUIDE units and stationary cell-servers and, finally, evaluating the entire system during an extensive field-trial study. This paper reports on our results in each of these areas. We believe that through our work on the GUIDE project we have produced a blueprint for the development of interactive context-aware systems that should be of real value to those in the community who wish to develop such systems in a practical environment.
GeoNotes: Social and Navigational Aspects of Location-Based Information Systems
, 2001
"... Abstract. Location-based information systems allow the user to access information in relation to the user’s position in geographical space. This paper outlines navigational and social aspects of such systems. It is argued that location-based systems must allow users to participate as content provide ..."
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Cited by 107 (0 self)
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Abstract. Location-based information systems allow the user to access information in relation to the user’s position in geographical space. This paper outlines navigational and social aspects of such systems. It is argued that location-based systems must allow users to participate as content providers in order to achieve a social and dynamic information space. Moreover, as these systems allow commercial and private users to annotate space with information on a mass-scale, information filtering techniques will become essential in order to prevent information overload and user disturbance. We present a number of content-based and social filtering techniques to support this. We discuss implications for implementation and we describe a system (GeoNotes), which takes some of these aspects into account. Keywords. Real-world annotations, position-based services, social awareness, context awareness.
M.: Tourism and mobile technology
- In: Eighth European Conference on CSCW ‘03
"... Abstract. While tourism presents considerable potential for the use of new mobile technologies, we currently have little understanding of how tourists organise their activities or of the problems they face. This paper presents an ethnographic study of city tourists ’ practices that draws out a numbe ..."
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Cited by 97 (7 self)
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Abstract. While tourism presents considerable potential for the use of new mobile technologies, we currently have little understanding of how tourists organise their activities or of the problems they face. This paper presents an ethnographic study of city tourists ’ practices that draws out a number of implications for designing tourist technology. We describe how tourists work together in groups, collaborate around maps and guidebooks, and both ‘pre- ’ and ‘post-visit ’ places. Implications are drawn for three types of tourist technology: systems that explicitly support how tourists co-ordinate, electronic guidebooks and maps, and electronic tour guide applications. We discuss applications of these findings, including the Travelblog, which supports building travel–based web pages while on holiday.
A Resource-Adaptive Mobile Navigation System
, 2002
"... The design of mobile navigation systems adapting to limited resources will be an important future challenge. Since typically several different means of transportation have to be combined in order to reach a destination, the user interface of such a system has to adapt to the user's changing sit ..."
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Cited by 93 (13 self)
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The design of mobile navigation systems adapting to limited resources will be an important future challenge. Since typically several different means of transportation have to be combined in order to reach a destination, the user interface of such a system has to adapt to the user's changing situation. This applies especially to the alternating use of different technologies to detect the user's position, which should be as seamless as possible. This article presents a hybrid navigation system that relies on different technologies to determine the user's location and that adapts the presentation of route directions to the limited technical resources of the output device and the limited cognitive resources of the user.
Information Filtering for Mobile Augmented Reality
- in Proceedings of the IEEE 2000 International Symposium on Augmented Reality
, 2000
"... Augmented Reality (AR) has the potential to revolutionise the way in which information is delivered to a user. By tracking the user’s position and orientation, complicated spatial information can be directly registered to the real ..."
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Cited by 83 (15 self)
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Augmented Reality (AR) has the potential to revolutionise the way in which information is delivered to a user. By tracking the user’s position and orientation, complicated spatial information can be directly registered to the real
Topiary: a tool for prototyping location-enhanced applications
- In Proc. UIST 2004. ACM Press
, 2004
"... accepted for inclusion in Human-Computer Interaction Institute by an authorized administrator of Research Showcase @ CMU. For more information, please contact ..."
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Cited by 81 (6 self)
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accepted for inclusion in Human-Computer Interaction Institute by an authorized administrator of Research Showcase @ CMU. For more information, please contact
Opportunity Knocks: a System to Provide Cognitive Assistance with Transportation Services
- In International Conference on Ubiquitous Computing (UbiComp
, 2004
"... Abstract. We present an automated transportation routing system, called “Opportunity Knocks, ” whose goal is to improve the efficiency, safety and independence of individuals with mild cognitive disabilities. Our system is implemented on a combination of a Bluetooth sensor beacon that broadcasts GPS ..."
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Cited by 79 (14 self)
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Abstract. We present an automated transportation routing system, called “Opportunity Knocks, ” whose goal is to improve the efficiency, safety and independence of individuals with mild cognitive disabilities. Our system is implemented on a combination of a Bluetooth sensor beacon that broadcasts GPS data, a GPRS-enabled cell-phone, and remote activity inference software. The system uses a novel inference engine that does not require users to explicitly provide information about the start or ending points of their journeys; instead this information is learned from users ’ past behavior. Futhermore, we demonstrate how route errors can be detected and how the system helps to correct the errors with real-time transit information. In addition we present a novel solution to the problem of labeling positions with place names. 1
Reflective middleware solutions for context-aware applications
- IN: INTERNATIONAL CONFERENCE ON METALEVEL ARCHITECTURES AND SEPARATION OF CROSSCUTTING CONCERNS
, 2001
"... In this paper, we argue that middleware for wired distributed systems cannot be used in a mobile setting, as the principle of transparency that has driven their design runs counter to the new degrees of awareness imposed by mobility. We propose the marriage of reflection and metadata as a means for ..."
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Cited by 77 (11 self)
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In this paper, we argue that middleware for wired distributed systems cannot be used in a mobile setting, as the principle of transparency that has driven their design runs counter to the new degrees of awareness imposed by mobility. We propose the marriage of reflection and metadata as a means for middleware to give applications dynamic access to information about their execution context. Finally, we describe a conceptual model that provides the basis of our reflective middleware.
