Abstract
Extension-based semantics in abstract argumentation provide a criterion to determine whether a set of arguments is acceptable or not. In this paper, we present the notion of extension-ranking semantics, which determines a preordering over sets of arguments, where one set is deemed more plausible than another if it is somehow more acceptable. We obtain extension-based semantics as a special case of this new approach, but it also allows us to make more fine-grained distinctions, such as one set being “more complete” or “more admissible” than another. We define a number of general principles to classify extension-ranking semantics and develop concrete approaches. We also study the relation between extension-ranking semantics and argument-ranking semantics, which rank individual arguments instead of sets of arguments.
Original language | English |
---|---|
Title of host publication | Proceedings of the Thirtieth International Joint Conference on Artificial Intelligence (IJCAI-21) |
Pages | 2047-2053 |
DOIs | |
Publication status | Published - 2021 |
Externally published | Yes |
Event | 30th International Conference on Artificial Intelligence - Duration: 21 Aug 2021 → … |
Conference
Conference | 30th International Conference on Artificial Intelligence |
---|---|
Abbreviated title | IJCAI |
Period | 21/08/21 → … |