Context obfuscation for privacy via ontological descriptions

Wishart, Ryan, Henricksen, Karen and Indulska, Jadwiga (2005). Context obfuscation for privacy via ontological descriptions. In: T. Strang and C. Linnhoff-Popien, 'Location and Context-Awareness' Proceedings. First International Workshop on Location and Context-Awareness (LoCA 2005), Oberpfaffenhofen, Germany, (276-288). 12-13 May, 2005. doi:10.1007/11426646_26

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Author Wishart, Ryan
Henricksen, Karen
Indulska, Jadwiga
Title of paper Context obfuscation for privacy via ontological descriptions
Conference name First International Workshop on Location and Context-Awareness (LoCA 2005)
Conference location Oberpfaffenhofen, Germany
Conference dates 12-13 May, 2005
Proceedings title 'Location and Context-Awareness' Proceedings   Check publisher's open access policy
Journal name Location- and Context-Awareness, Proceedings   Check publisher's open access policy
Place of Publication Germany
Publisher Springer
Publication Year 2005
Sub-type Fully published paper
DOI 10.1007/11426646_26
Open Access Status
ISBN 3-540-25896-5
ISSN 0302-9743
Editor T. Strang
C. Linnhoff-Popien
Volume LNCS 3479
Start page 276
End page 288
Total pages 13
Language eng
Abstract/Summary Context information is used by pervasive networking and context-aware programs to adapt intelligently to different environments and user tasks. As the context information is potentially sensitive, it is often necessary to provide privacy protection mechanisms for users. These mechanisms are intended to prevent breaches of user privacy through unauthorised context disclosure. To be effective, such mechanisms should not only support user specified context disclosure rules, but also the disclosure of context at different granularities. In this paper we describe a new obfuscation mechanism that can adjust the granularity of different types of context information to meet disclosure requirements stated by the owner of the context information. These requirements are specified using a preference model we developed previously and have since extended to provide granularity control. The obfuscation process is supported by our novel use of ontological descriptions that capture the granularity relationship between instances of an object type.
Subjects E1
280505 Data Security
700399 Communication services not elsewhere classified
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes published in LNCS 3479

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Created: Fri, 24 Aug 2007, 07:18:41 EST