{"type":"ScholarlyArticle","title":"Belief Change Based on Global Minimisation","authors":[{"name":"James P. Delgrande","slug":"james-p-delgrande","given":"James P.","family":"Delgrande","affiliation":""},{"name":"Jérôme Lang","slug":"jerome-lang","given":"Jérôme","family":"Lang","affiliation":""},{"name":"Torsten Schaub","slug":"torsten-schaub","given":"Torsten","family":"Schaub","affiliation":""}],"abstract":"A general framework for minimisation-based belief change is presented. A problem instance is made up of an undirected graph, where a formula is associated with each vertex. For example, vertices may represent spatial locations, points in time, or some other notion of locality. Information is shared between vertices via a process of minimisation over the graph. We give equivalent semantic and syntactic characterisations of this minimisation. We also show that this approach is general enough to capture existing minimisation-based approaches to belief merging, belief revision, and (temporal) extrapolation operators. While we focus on a set-theoretic notion of minimisation, we also consider other approaches, such as cardinality-based and priority-based minimisation.","doi":null,"url":"https://ijcai.org/proceedings/2007/397","pdf":"https://ijcai.org/proceedings/2007/0397.pdf","markdown":"https://ijcai.org/proceedings/2007/397.md","bibtex":"https://ijcai.org/proceedings/2007/bibtex/397","volume":{"slug":"2007","title":"Proceedings of the Twentieth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2007","url":"https://ijcai.org/proceedings/2007/","year":2007,"location":"Hyderabad, India","dates":"","editors":"Ramon López de Mántaras","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":null,"track":"","number":397,"pages":{"first":2468,"last":2472},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}