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.
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.
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|Item Type:||Conference Paper|
|Keywords:||Trust, Reputation, Propagation, Subjective logic, Network|
|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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