%0 Journal Article
%T Method for Ontology Extraction Based on Unknown Structure Web<br>一种基于未知结构网页抽取本体的方法
%A QIANG Yu
%A HU Yun-fa
%A <br>强宇
%A 胡运发
%J 计算机科学
%D 2009
%I 
%X To the user,the structure of the data in HTML tables on the Web is usually unknown,thus,the data of in-terest can't be queried directly.We presented a solution to this problem.The solution entails the understand of table element,data integration and wrapper creation.Table unstanding is to find interest table,recognize attribute and value in the table,pair attributes with values and form records.Data integration is to match source records with a target schema.Ontology specified wrappers is to extract the dat...
%K Hetero-data integration
%K Semantic correspondence
%K Table understanding
%K Ontology extraction<br>异质数据集成
%K 语义对应
%K 表理解
%K 本体抽取
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=BD4E33FE970138EBDD69144F8D09E930&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=0B39A22176CE99FB&sid=50BBDFAC8381694B&eid=3A0155B37D8FF829&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=11