A multi-agent argumentation framework to support collective reasoning

Argumentative debates are a powerful tool for resolving conflicts and
reaching agreements in open environments such as on-line communities. Here we
introduce an argumentation framework to structure argumentative debates. Our
framework represents the arguments issued by the participants involved in a debate, the (attack and defence) relationships between them, as well as participants’
opinions on them. Furthermore, we tackle the problem of computing a collective
decision from participants’ opinions. With this aim, we design an aggregation
function that satisfies valuable social-choice properties.