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    WWW
    2011
    ACM
    248views Internet Technology» more  WWW 2011»
    Rewriting queries on SPARQL views
    12 years 12 months ago
    Rewriting queries on SPARQL views
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    The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
    Wangchao Le, Songyun Duan, Anastasios Kementsietsi...
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    SACMAT
    2009
    ACM
    249views Control Systems» more  SACMAT 2009»
    Towards formal security analysis of GTRBAC using timed automata
    13 years 11 months ago
    Towards formal security analysis of GTRBAC using timed automata
    Download  www.facweb.iitkgp.ernet.in
    An access control system is often viewed as a state transition system. Given a set of access control policies, a general safety requirement in such a system is to determine whethe...
    Samrat Mondal, Shamik Sural, Vijayalakshmi Atluri
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