Generalizing stable semantics by preferences
Leïla Amgoud, Srdjan Vesić · Frontiers in artificial intelligence and applications · 2010
Different proposals have been made in the literature for refining Dung's argumentation framework by preferences between arguments. The idea is to ignore an attack if the attacked argument is stronger than its attacker. Acceptability semantics are then applied on the remaining attacks. Unfortunately, these proposals may return some unintended results, in particular, when the attack relation is asymmetric.