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Optimal trust network analysis with subjective logic

Josang, Audun & Bhuiyan, Touhid (2008) Optimal trust network analysis with subjective logic. In Proceeding of the Second International Conference on Emerging Security Information, Systems and Technologies, 25-31 August 2008, Cap Esterel, France.

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Abstract

Trust network analysis with subjective logic (TNA-SL) simplifies complex trust graphs into series-parallel graphs by removing the most uncertain paths to obtain a canonical graph. This simplification could in theory cause loss of information and thereby lead to sub-optimal results. This paper describes a new method for trust network analysis which is considered optimal because it does not require trust graph simplification, but instead uses edge splitting to obtain a canonical graph. The new method is compared with TNA-SL, and our simulation shows that both methods produce equal results. This indicates that TNA-SL in fact also represents an optimal method for trust network analysis and that the trust graph simplification does not affect the result.

Impact and interest:

18 citations in Scopus
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ID Code: 21128
Item Type: Conference Paper
Additional URLs:
Keywords: Trust, Reputation, Propagation, Subjective logic, Network
DOI: 10.1109/SECURWARE.2008.64
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > INFORMATION SYSTEMS (080600) > Interorganisational Information Systems and Web Services (080612)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2008 IEEE Computer Society
Deposited On: 12 Jun 2009 14:17
Last Modified: 09 Jun 2010 23:44

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