{"type":"ScholarlyArticle","title":"Wrapper Induction for Information Extraction","authors":[{"name":"Nicholas Kushmerick","slug":"nicholas-kushmerick","given":"Nicholas","family":"Kushmerick","affiliation":""},{"name":"Daniel S. Weld","slug":"daniel-s-weld","given":"Daniel S.","family":"Weld","affiliation":""},{"name":"Robert B. Doorenbos","slug":"robert-b-doorenbos","given":"Robert B.","family":"Doorenbos","affiliation":""}],"abstract":"Many Internet information resources present relational data-telephone directories, product catalogs, etc. Because these sites are formatted for people, mechanically extracting their content is difficult. Systems using such resources typically use hand-coded wrappers, procedures to extract data from information resources. We introduce wrapper induction, a method for automatically constructing wrappers, and identify HLRT, a wrapper class that is efficiently learnable, yet expressive enough to handle 48% of a recently surveyed sample of Internet resources. We use PAC analysis to bound the problem's sample complexity, and show that the system degrades gracefully with imperfect labeling knowledge.","doi":null,"url":"https://ijcai.org/proceedings/1997/106","pdf":"https://ijcai.org/proceedings/1997/0106.pdf","markdown":"https://ijcai.org/proceedings/1997/106.md","bibtex":"https://ijcai.org/proceedings/1997/bibtex/106","volume":{"slug":"1997","title":"Proceedings of the Fifteenth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1997","url":"https://ijcai.org/proceedings/1997/","year":1997,"location":"Nagoya, Japan","dates":"","editors":"Martha E. Pollack","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"Information Retrieval","track":"Information Retrieval","number":106,"pages":{"first":729,"last":736},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}