Original scientific paper

Analysing Trust Transitivity and The Effects of Unknown Dependence

Touhid Bhuiyan ; School of IT, Queensland University of Technology, Australia
Audun Josang ; UNIK Graduate Center, University of Oslo, Norway

Abstract

Trust can be used to improve online automated recommendation within a given domain. Trust transitivity is used to make it successful. But trust transitivity has different interpretations. Trust and trust transitivity; both are the human mental phenomenon and for this reason, there is no such thing as objective transitivity. Trust transitivity and trust fusion both are important elements in computational trust. This paper analyses the parameter dependence problem in trust transitivity and proposes some definitions considering the effects of base rate. In addition, it also proposes belief functions based on subjective logic to analyse trust transitivity of three specified cases with sensitive and insensitive based rate. Then it presents a quantitative analysis of the effects of unknown dependence problem in an interconnected network environment; such Internet.

Keywords

Trust management; Transitivity; Subjective logic; Base rate; Dependence

Hrčak ID:

66016

URI

https://hrcak.srce.hr/66016

Publication date:

15.3.2010.

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