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Das Papier: „Splitting Argumentation Frameworks with Collective Attacks and Supports“ von Matti Berthold, Lydia Blümel, Giovanni Buraglio und Anna Rapberger wurde als Runner-Up für den Marco-Cadoli-Preis für den besten studentischen Beitrag bei der KR 2026 ausgewählt.

Abstract:

This work proposes novel splitting techniques for argumentation formalisms that incorporate supports between defeasible elements. We base our studies on bipolar set-based argumentation frameworks (BSAFs) which generalize argumentation frameworks with collective attacks (SETAFs), as well as bipolar argumentation frameworks (BAFs), by incorporating both collective attacks and supports. Notably, BSAFs establish a crucial link to structured argumentation as they naturally capture general (potentially non-flat) assumption-based argumentation. The increase in expressiveness calls for diverse forms of splitting. We consider splits over collective attacks (thereby generalizing the recently proposed splitting techniques for SETAFs), splits over collective supports, as well as splits over both collective attacks and supports. We establish suitable splitting schemata and prove their correctness for the most common argumentation semantics.