An Argumentation-Based Dialog for Social Evaluations Exchange

In open multiagent systems, agents depend on reputation and trust mechanisms to evaluate the behavior of potential partners. Often these evaluations (social evaluate) are associated with a measure of reliability that the source agent computes. When considering communicated social evaluations, this may lead to serious problems due to the subjectivity of reputation-related information. In this paper, instead of considering only reliability measures computed from the sources, we provide a mechanism that allows the recipient according to its own knowledge, decide whether the piece of information is reliable. We do this by allowing the agents engage in an argumentation-based dialog