Towards Modeling Trust Based Decisions: A Game Theoretic Approach

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Towards Modeling Trust Based Decisions: A Game Theoretic Approach
Current trust models enable decision support at an implicit level by means of thresholds or constraint satisfiability. Decision support is mostly included only for a single binary action, and does not explicitly consider the purpose of a transaction. In this paper, we present a game theoretic model that is specifically tuned for decision support on a whole host of actions, based on specified thresholds of risk. As opposed to traditional representations on the real number line between 0 and +1, Trust in our model is represented as an index into a set of actions ordered according to the agent’s preference. A base scenario of zero trust is defined by the equilibrium point of a game described in normal form with a certain payoff structure. We then present the blind trust model, where an entity attempts to initiate a trust relationship with another entity for a one-time transaction, without any prior knowledge or recommendations. We extend this to the incentive trust model where enti...
Vidyaraman Sankaranarayanan, Madhusudhanan Chandra
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Authors Vidyaraman Sankaranarayanan, Madhusudhanan Chandrasekaran, Shambhu J. Upadhyaya
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