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Computer Engineering ›› 2006, Vol. 32 ›› Issue (8): 84-85,88.

• Software Technology and Database • Previous Articles     Next Articles

Research on XFD Based on Path Coding Method of DTD

HU Xiaoming1,2, JIANG Xueying3, CHEN Ziyang2, LIU Guohua2   

  1. 1. Department of Computer Science and Technology, Shanghai Jiaotong University, Shanghai 200030;2. Department of Computer Science and Engineering, Yanshan University, Qinhuangdao 066004;3. Dept. of Computer Engineering, Northeast University at Qinhuangdao, Qinhuangdao 066004
  • Online:2006-04-20 Published:2006-04-20

基于 DTD 路径编码方法的XFD 研究

胡小明 1,2,蒋学英3,陈子阳2,刘国华2   

  1. 1. 上海交通大学计算机科学与技术系,上海 200030;2. 燕山大学计算机科学与工程系,秦皇岛 066004;3. 东北大学秦皇岛分校计算机工程系,秦皇岛 066004

Abstract: XML function dependency, logical implication are the foundation of the further research on XML key and XML normalization theory.In the paper, in order to solve the implication of XML function dependency, a path coding method of DTD is presented, and its characters are analyzed. Coding DTD can test the logical implication problem of XML function dependency in linear time

Key words: XML; DTD; Logical implication; Coding

摘要: XML 函数依赖、逻辑蕴涵是进一步研究XML 键和XML 规范化理论的基础。为了有效地解决XML 函数依赖的蕴涵问题,该文提出了一种DTD 路径编码机制,对它的性质进行了分析。编码后的DTD 能在线性时间内对XML 函数依赖的逻辑蕴涵问题进行判定。

关键词: XML;DTD;逻辑蕴涵;编码