Certain trust: a trust model for users and agents

S Ries - Proceedings of the 2007 ACM symposium on Applied …, 2007 - dl.acm.org
Proceedings of the 2007 ACM symposium on Applied computing, 2007dl.acm.org
One of the challenges for ubiquitous computing and P2P systems is to find reliable partners
for interactions. We believe that this problem can be solved by assigning trust values to
entities and allowing them to state opinions about the trust-worthiness of others. In this
paper, we develop a new trust model, called Certain Trust, which can easily be interpreted
and adjusted by users and software agents. A key feature of Certain Trust is that it is capable
of expressing the certainty of a trust opinion, depending on the context of use. We show how …
One of the challenges for ubiquitous computing and P2P systems is to find reliable partners for interactions. We believe that this problem can be solved by assigning trust values to entities and allowing them to state opinions about the trust-worthiness of others. In this paper, we develop a new trust model, called Certain Trust, which can easily be interpreted and adjusted by users and software agents. A key feature of Certain Trust is that it is capable of expressing the certainty of a trust opinion, depending on the context of use. We show how the trust values can be expressed using different representations (one for users and one for software agents) and present an automatic mapping to change between the representations.
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