Conference Paper

Who, What, When, Where, How: Design Issues of Capture & Access Applications.

Conference: Ubicomp 2001: Ubiquitous Computing, Third International Conference Atlanta, Georgia, USA, September 30 - October 2, 2001, Proceedings
Source: DBLP

ABSTRACT

One of the general themes in ubiquitous computing is the construction of devices and applications to support the automated capture of live experiences and the future access of those records. Over the past five years, our research group has developed over half a dozen different capture and access applications. In this paper, we present an overview of eight of these applications. We discuss the different design issues encountered while creating each of these applications and share our approaches to solving these issues (in comparison and in contrast with other work found in the literature). From these issues we define the large design space for automated capture and access. This design space may then serve as a point of reference for designers to extract the requirements for systems to be developed in the future.

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    • "The Context Kernel [3] is a Web Service designed to manage context gathered from ubicomp environments by means of physical sensors, applications or other Web Services . Based on five dimensions for context modeling debated in the literature [1] [20], the CK has been designed to answer questions such as: who are the participants of a ubicomp interaction? where are those participants? "
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    ABSTRACT: Context-aware applications assist users' everyday tasks by adapting their behavior based on context information obtained from instrumented environments. Context is any relevant information describing entities in a user-computer interaction (e.g. user location). The design and implementation of high-quality context management software is an area of active research. We have described elsewhere the context kernel, a Web service that manages context information on behalf of applications. In this paper, we present a case study of how the context kernel has been used to integrate a suite of e-learning applications. We show how the Web services approach allowed applications to seamlessly exchange context on the Web through a uniform context representation schema. We also present the lessons we learned from integrating e-learning applications via Web services.
    Full-text · Conference Paper · Sep 2005
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    • "The Context Kernel (CK) [15] is a Web Service designed to manage context information gathered from ubicomp environments by means of physical sensors, applications or other Web Services. Using the five dimensions for context modeling widely discussed in the literature [2], [17], the CK has been designed to answer questions such as: who are the participants in a ubicomp interaction? where are those participants? "
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    ABSTRACT: Ubiquitous computing is a user-computer interaction paradigm supporting users in everyday tasks carried out away from the desktop. The literature has exploited themes such as natural interfaces (e.g. pen-based), automatic capture and access of everyday experiences and context-aware computing. Regarding context-aware applications, context is any relevant information describing entities in a user-computer interaction (e.g. user location). The design and implementation of high-quality context management software is an area of active research. We have described elsewhere the Context Kernel, a Web Service that manages context information on behalf of applications. In this paper, we present a case study of how the Context Kernel has been used to integrate a suite of e-learning applications — a domain rich in research exploiting the ubiquitous computing themes. We show how the Web Services approach allowed applications to seamlessly exchange context on the Web through a uniform context representation schema. In particular, we discuss how our approach has allowed us to tackle an important problem of e-learning applications: the support to authoring learning object metadata. We also present lessons learned from integrating e-learning applications via Web Services.
    Full-text · Article · Jan 2005
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    ABSTRACT: In this paper we present the design details of the visual perception system in Aware Home. This paper is intend to (a) detail our design details; (b) provide insights on how different parts of the tracking system are inter-related to solve complex perception tasks; (c) document ideas and potential research directions; (d) provide performance evaluation. This work will primarily focus on algorithm and design issues, while another technical report will be authored to address coding issues related to this system (APIs, class structures, etc).
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