{"type":"ScholarlyArticle","title":"Representation and Use of Explicit Justifications for Knowledge Base Refinements","authors":[{"name":"Reid G. Smith","slug":"reid-g-smith","given":"Reid G.","family":"Smith","affiliation":""},{"name":"Howard A. Winston","slug":"howard-a-winston","given":"Howard A.","family":"Winston","affiliation":""},{"name":"Tom M. Mitchell","slug":"tom-m-mitchell","given":"Tom M.","family":"Mitchell","affiliation":""},{"name":"Bruce G. Buchanan","slug":"bruce-g-buchanan","given":"Bruce G.","family":"Buchanan","affiliation":""}],"abstract":"We discuss the representation and use of justification structures as an a id to knowledge base refinement . We s how how justifica· lions can be used by a system to generate explanations- for its o wn use- of potential causes of observed failures. We discuss specific information that is usefully included in these justifications to allow th e system to isolate potential faulty supporting beliefs for its rules and to effect repa1rs . This research is part of a larger effort to develop a Learning Apprentice System (LAS) that partially automates initial construction of a knowledge base from first -principle domain knowledge as well as knowledge base refinement during routine use. A simple implementation has been constructed that demonstrates the feasi bility of building such a system.","doi":null,"url":"https://ijcai.org/proceedings/1985/131","pdf":"https://ijcai.org/proceedings/1985/0131.pdf","markdown":"https://ijcai.org/proceedings/1985/131.md","bibtex":"https://ijcai.org/proceedings/1985/bibtex/131","volume":{"slug":"1985","title":"Proceedings of the Ninth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1985","url":"https://ijcai.org/proceedings/1985/","year":1985,"location":"Los Angeles, California, USA","dates":"","editors":"Aravind Joshi","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"Learning and Acquisition","track":"Learning and Acquisition","number":131,"pages":{"first":673,"last":679},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}