{"type":"ScholarlyArticle","title":"Combining Qualitative and Quantitative Knowledge to Generate Models of Physical Systems","authors":[{"name":"Ulf Söderman","slug":"ulf-soderman","given":"Ulf","family":"Söderman","affiliation":""},{"name":"Jan-Erik Strömberg","slug":"jan-erik-stromberg","given":"Jan-Erik","family":"Strömberg","affiliation":""}],"abstract":"All major approaches to Qualitative Reasoning rely on the existence of a model of the physical system. However, the task of finding a model is usually far from trivial. Within the area of electrical engineering, model building methods have been developed to automatically deduce models from measurements . In this paper we explicitly show how to incorporate qualitative knowledge in order to apply these methods to situations where they do not behave satisfactorily. A program has been developed and applied to a non-trivial example. The qualitative input, in terms of an incomplete bond graph, and the resulting output can be used to form a more complete bond graph. This more informative model is suitable for further reasoning.","doi":null,"url":"https://ijcai.org/proceedings/1991/170","pdf":"https://ijcai.org/proceedings/1991/0170.pdf","markdown":"https://ijcai.org/proceedings/1991/170.md","bibtex":"https://ijcai.org/proceedings/1991/bibtex/170","volume":{"slug":"1991","title":"Proceedings of the Twelfth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1991","url":"https://ijcai.org/proceedings/1991/","year":1991,"location":"Sydney, New South Wales, Australia","dates":"24-30 August 1991","editors":"John Mylopoulos and Ray Reiter","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"Qualitative Reasoning","track":"Qualitative Reasoning","number":170,"pages":{"first":1158,"last":1162},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}