Bipolar Abstract Argumentation with Dual Attacks and Supports

Nico Potyka
2020 Proceedings of the Seventeenth International Conference on Principles of Knowledge Representation and Reasoning  
Bipolar abstract argumentation frameworks allow modeling decision problems by defining pro and contra arguments and their relationships. In some popular bipolar frameworks, there is an inherent tendency to favor either attack or support relationships. However, for some applications, it seems sensible to treat attack and support equally. Roughly speaking, turning an attack edge into a support edge, should just invert its meaning. We look at a recently introduced bipolar argumentation semantics
more » ... d two novel alternatives and discuss their semantical and computational properties. Interestingly, the two novel semantics correspond to stable semantics if no support relations are present and maintain the computational complexity of stable semantics in general bipolar frameworks.
doi:10.24963/kr.2020/69 dblp:conf/kr/Potyka20 fatcat:hhorkatu2jgfnnkaiyhboltz24