%0 Journal Article
%T AST-based code plagiarism detection method<br>一种基于AST的代码抄袭检测方法*
%A ZHANG Li-ping
%A LIU Dong-sheng
%A LI Yan-chen
%A ZHONG Mei
%A <br>张丽萍
%A 刘东升
%A 李彦臣
%A 钟美
%J 计算机应用研究
%D 2011
%I 
%X On the basis of analyzing existing mapping schemes, this paper proposed a new model mapping scheme from XML document to relational database.According to the node type, mapped the information of each node in XML document to diffe-rent table in relational database.All non-leaf nodes stored its child nodes,which could effectively reduce the document restructuring time, while all leaf nodes were grouped,which could effectively reduce the cost of the node join operation. The results of experiment show that this scheme has a higher efficiency than existing mapping schemes in document restructuring and query.It is universal and can be used to process any XML document.
%K relational database
%K model mapping
%K XML data model
%K document restructuring
%K query efficiency<br>抽象语法树
%K 抄袭检测
%K 开源语法分析器
%K 相似度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=FB5801A5F05F25BDDB925D5CF2F7E14C&yid=9377ED8094509821&vid=D3E34374A0D77D7F&iid=59906B3B2830C2C5&sid=50E6DB5CDAAFDCB0&eid=EABD5048778B2E9C&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=21