{"type":"ScholarlyArticle","title":"Efficient Approach to Solve the Minimal Labeling Problem of Temporal and Spatial Qualitative Constraints","authors":[{"name":"Nouhad Amaneddine","slug":"nouhad-amaneddine","given":"Nouhad","family":"Amaneddine","affiliation":""},{"name":"Jean-François Condotta","slug":"jean-francois-condotta","given":"Jean-François","family":"Condotta","affiliation":""},{"name":"Michael Sioutis","slug":"michael-sioutis","given":"Michael","family":"Sioutis","affiliation":""}],"abstract":"The Interval Algebra (IA) and a subset of the Region Connection Calculus (RCC), namely RCC-8, are the dominant Artificial Intelligence approaches for representing and reasoning about qualitative temporal and topological relations respectively. Such qualitative information can be formulated as a Qualitative Constraint Network (QCN). In this paper, we focus on the minimal labeling problem (MLP) and we propose an algorithm to efficiently derive all the feasible base relations of a QCN. Our algorithm considers chordal QCNs and a new form of partial consistency. Further, the proposed algorithm uses tractable subclasses of relations having a specific patchwork property for which closure under weak composition implies the consistency of the input QCN. Experimentations with QCNs of IA and RCC-8 show the importance and efficiency of this new approach.","doi":null,"url":"https://ijcai.org/proceedings/2013/110","pdf":"https://ijcai.org/proceedings/2013/0110.pdf","markdown":"https://ijcai.org/proceedings/2013/110.md","bibtex":"https://ijcai.org/proceedings/2013/bibtex/110","volume":{"slug":"2013","title":"Proceedings of the Twenty-Third International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2013","url":"https://ijcai.org/proceedings/2013/","year":2013,"location":"Beijing, China","dates":"3–9 August 2013","editors":"Francesca Rossi","isbn":"978-1-57735-633-2","publisher":"AAAI Press / International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":null,"track":"","number":110,"pages":{"first":696,"last":701},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}