Goal Generation from Beliefs Based on Trust and Distrust (Extended Abstract)
Célia da Costa Pereira, Andrea G. B. Tettamanzi · 2009
We propose three alternative belief change operators to be used in a goal generation and adoption framework. The originality of these operators is that the trustworthiness of a source depends not only on the degree of trust but also on an independent degree of distrust. Explicitly taking distrust into account allows us to mark a clear difference between the distinct notions of negative trust and insufficient trust. More precisely, it is possible, unlike in approaches where only trust is accounted for, to “weigh ” differently information from helpful, malicious, unknown,orneutral sources.