用于XML模式和DTD规范化设计的层次模式设计
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

Supported bythe National Natural Science Foundation of China under Grant No.69933010(国家自然科学基金);the Foundation of Laboratory of Computer Science,Institute of Software,the Chinese Academy of Sciences under Grant No.SYSKF0306(中国科学院软件研究所计算机科学


Hierarchical Schemas Design for XML Schemas and DTDs Normalization Design
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    XML模式和DTD(document type definition)规范化设计是给出一个很好地表示数据间依赖关系并消除了冗余的XML模式或DTD的集合.目前在这一方面开展的研究还不多,而且才刚起步.Provost提出将关系数据库理论应用于XML模式规范化设计的思想,这一思想还没有付诸实施.在Provost思想的基础上给出用于XML模式和DTD规范化设计的层次模式设计的算法.首先分析了基于Provost思想的层次分解;然后给出用于消除冗余模式的分解树设计算法;最后给出用于XML模式和DTD规范化设计的层次

    Abstract:

    Normalization design of XML Schemas and DTDs (document type definitions) is to produce a set of XML schemas or DTDs that can well represent data dependencies and eliminate redundancies. Now there are a few researches on it, and the existing researches are still at its initial stage. Provost proposed the idea of applying the theory of relational database to XML schemas normalization design. This idea has not been put into practice. The paper shows algorithms of hierarchical schemas design for XML schemas and DTDs normalization design based on Provost's idea. Firstly the paper analyzes hierarchy decomposition based on Provost's idea. Then it presents an algorithm producing a decomposition tree to eliminate redundant schemas. Finally it shows an algorithm of hierarchical schemas design for XML schemas and DTDs normalization design to get over deficiencies for Provost's idea. With respect to other researches on normalization design for XML schemas and DTDs, the set of full and embedded MVDs in hierarchical schemas produced by these algorithms are implied by the given set of MVDs (multivalued dependencies), and the hierarchical schemas eliminate redundant ones and satisfy the lossless join property.

    参考文献
    相似文献
    引证文献
引用本文

吴永辉.用于XML模式和DTD规范化设计的层次模式设计.软件学报,2004,15(7):1099-1106

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2003-05-21
  • 最后修改日期:2003-11-27
  • 录用日期:
  • 在线发布日期:
  • 出版日期:
文章二维码
您是第位访问者
版权所有:中国科学院软件研究所 京ICP备05046678号-3
地址:北京市海淀区中关村南四街4号,邮政编码:100190
电话:010-62562563 传真:010-62562533 Email:jos@iscas.ac.cn
技术支持:北京勤云科技发展有限公司

京公网安备 11040202500063号