Developing a context-aware electronic tourist guide: Some issues and experiences (2000)

by K Cheverst, N Davies, K Mitchell, A Friday, C Efstratiou
Venue:In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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What We Talk About When We Talk About Context

by Paul Dourish - 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 ..."
Abstract - Cited by 347 (1 self) - Add to MetaCart
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

by Keith Cheverst, Nigel Davies, Keith Mitchell, Adrian Friday , 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 ..."
Abstract - Cited by 223 (7 self) - Add to MetaCart
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.
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How Recommender Systems

by Gediminas Adomavicius, Er Tuzhilin, Gediminas Adomavicius, Alexander Tuzhilin, Gediminas Adomavicius, Er Tuzhilin - in Technology-Enhanced Learning depend on Context”, the 1st workshop on Context-aware RSs for Learning , 2009
"... Abstract The importance of contextual information has been recognized by researchers and practitioners in many disciplines, including e-commerce personalization, information retrieval, ubiquitous and mobile computing, data mining, marketing, and management. While a substantial amount of research has ..."
Abstract - Cited by 149 (27 self) - Add to MetaCart
Abstract The importance of contextual information has been recognized by researchers and practitioners in many disciplines, including e-commerce personalization, information retrieval, ubiquitous and mobile computing, data mining, marketing, and management. While a substantial amount of research has already been performed in the area of recommender systems, most existing approaches focus on recommending the most relevant items to users without taking into account any additional contextual information, such as time, location, or the company of other people (e.g., for watching movies or dining out). In this chapter we argue that relevant contextual information does matter in recommender systems and that it is important to take this information into account when providing recommendations. We discuss the general notion of context and how it can be modeled in recommender systems. Furthermore, we introduce three different algorithmic paradigms – contextual prefiltering, post-filtering, and modeling – for incorporating contextual information into the recommendation process, discuss the possibilities of combining several contextaware recommendation techniques into a single unifying approach, and provide a case study of one such combined approach. Finally, we present additional capabilities for context-aware recommenders and discuss important and promising directions for future research.

GeoNotes: Social and Navigational Aspects of Location-Based Information Systems

by Fredrik Espinoza, Per Persson, Anna S, Hanna Nyström, Elenor Cacciatore, Markus Bylund , 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 ..."
Abstract - Cited by 106 (0 self) - Add to MetaCart
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.
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A Resource-Adaptive Mobile Navigation System

by Jörg Baus, Antonio Krüger, Wolfgang Wahlster , 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 ..."
Abstract - Cited by 93 (13 self) - Add to MetaCart
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.
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M.: Tourism and mobile technology

by Barry Brown, Matthew Chalmers - 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 ..."
Abstract - Cited by 93 (7 self) - Add to MetaCart
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.

Information Filtering for Mobile Augmented Reality

by Simon Julier, Marco Lanzagorta, Yohan Baillot, Dennis Brown - 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 ..."
Abstract - Cited by 83 (15 self) - Add to MetaCart
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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Topiary: a tool for prototyping location-enhanced applications

by Yang Li, Jason I. Hong, James A. Landay, Yang Li, Jason I. Hong, James A. L - 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 ..."
Abstract - Cited by 82 (6 self) - Add to MetaCart
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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Opportunity Knocks: a System to Provide Cognitive Assistance with Transportation Services

by Donald J. Patterson, Lin Liao, Krzysztof Gajos, Michael Collier, Nik Livic, Katherine Olson, Shiaokai Wang, Dieter Fox, Henry Kautz - 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 ..."
Abstract - Cited by 79 (14 self) - Add to MetaCart
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
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Reflective middleware solutions for context-aware applications

by Licia Capra, Wolfgang Emmerich, Cecilia Mascolo - 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 ..."
Abstract - Cited by 76 (11 self) - Add to MetaCart
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.