Interoperable strategies in automated trust negotiation
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Towards Practical Automated Trust Negotiation
POLICY '02 Proceedings of the 3rd International Workshop on Policies for Distributed Systems and Networks (POLICY'02)
Automated Trust Negotiation
Policy migration for sensitive credentials in trust negotiation
Proceedings of the 2003 ACM workshop on Privacy in the electronic society
Experiences applying game theory to system design
Proceedings of the ACM SIGCOMM workshop on Practice and theory of incentives in networked systems
AAMAS '04 Proceedings of the Third International Joint Conference on Autonomous Agents and Multiagent Systems - Volume 2
A trust-enhanced recommender system application: Moleskiing
Proceedings of the 2005 ACM symposium on Applied computing
How to incorporate revocation status information into the trust metrics for public-key certification
Proceedings of the 2005 ACM symposium on Applied computing
Effect of referrals on convergence to satisficing distributions
Proceedings of the fourth international joint conference on Autonomous agents and multiagent systems
Trading in Open Marketplace Using Trust and Risk
IAT '05 Proceedings of the IEEE/WIC/ACM International Conference on Intelligent Agent Technology
Journal of the American Society for Information Science and Technology
A Technique for Large Automated Mechanism Design Problems
IAT '06 Proceedings of the IEEE/WIC/ACM international conference on Intelligent Agent Technology
A survey of trust and reputation systems for online service provision
Decision Support Systems
Constructing utility models from observed negotiation actions
IJCAI'03 Proceedings of the 18th international joint conference on Artificial intelligence
A trust assignment model based on alternate actions payoff
iTrust'06 Proceedings of the 4th international conference on Trust Management
Combining trust and risk to reduce the cost of attacks
iTrust'05 Proceedings of the Third international conference on Trust Management
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
Trust management and trust theory revision
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
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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 entities can offer incentives to be trusted in a multi-period transaction. For a specified risk threshold, both models are analyzed by using the base scenario of zero trust as a reference. Lastly, we present some issues involved in the translation of our models to practical scenarios, and suggest a rich set of extensions of the generalized game theoretic approach to model decision support for existing trust frameworks.