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    QACA: Quality assured context acquisition in context-aware computing

    Access Status
    Fulltext not available
    Authors
    Li, Y.
    Feng, L.
    Dillon, Tharam
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Li, Yuanping and Feng, Ling and Dillon, Tharam. 2011. QACA: Quality assured context acquisition in context-aware computing. Journal of Convergence Information Technology. 6 (1): pp. 94-107.
    Source Title
    Journal of Convergence Information Technology
    ISSN
    19759320
    School
    Digital Ecosystems and Business Intelligence Institute (DEBII)
    URI
    http://hdl.handle.net/20.500.11937/35176
    Collection
    • Curtin Research Publications
    Abstract

    Previous research work in context quality primarily focuses on identifying and modeling it. However, assuring context quality is no less challenging than modeling it. Difficulties lie in acquiring high-quality context from the context providers whose quality and availability can not be guaranteed. In this paper, we propose a context quality assurance strategy QACA based on the least square error, by leveraging the redundancy of context providers. In this strategy, redundant imprecise and unstable context providers are used to constitute a more precise and stable context provision. Such a strategy provides a theoretical basis to implement a specification based context acquisition middleware.

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