Institute of Electrical & Electronic Engineers
The increasing reliance on information gathered from the web and other internet technologies raises the issue of trust. Through the development of semantic Web, one major difficulty is that, by its very nature, the semantic web is a large, uncensored system to which anyone may contribute. This raises the question of how much credence to give each resource. The authors can't expect each user to know the trustworthiness of each resource, nor would they want to assign top-down or global credibility values due to the subjective nature of trust. Trust policies and trust evaluation mechanisms are needed to filter untrustworthy resource. They tackle this problem by employing a trust model for evaluating trustworthiness of each resource.