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递归维概念及其操作的研究 被引量：1

The Concept of Recursive Dimension and Corresponding Operations
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摘要 1.引言 数据仓库技术研究如何将分散在企业内部多个异构数据源的操作型数据,经过抽取、清洗转换、集成,以一致的方式进行存储.其实现多基于关系技术,数据被分别存放在维表和事实表之中,以星型或雪花模式存储. Dimensions are an essential part in multi-dimensional data model (MDDM) for OLAP. Hierarchical structure of dimension allows the user to study measures in different levels of details. This paper focuses on a special kind of dimension with an unbalanced-hierarchy designed to support self-referencing dimension table in data warehouses, called recursive dimension, which is largely ignored by research area. So we extend MDDM to represent it and corresponding operations. Finally we show how it can be implemented in object-relational DBMS environment.
作者 袁霖 李战怀 徐秋元
机构地区 西北工业大学计算机系
出处 《计算机科学》 CSCD 北大核心 2003年第10期7-10,20,共5页 Computer Science
基金 国家自然科学基金(60073055) 西北工业大学博士论文创新基金
关键词 数据仓库 递归维概念 操作 多维数据模型 数据库 数据集 Recursive dimension,Multi-dimensional data model, OLAP
分类号 TP311.13 [自动化与计算机技术—计算机软件与理论]
  • 相关文献

参考文献16

  • 1Cabibbo L. Torlone R. A Logical Approach to Multidimensional Databases. In:Proc. of the EDBT 1998.
  • 2Agrawal R, Gupta A, Sarawagi S. Modelling Multidimensional Databases. In:Proc. of the ICDE 1997.
  • 3Li C,Wang X S. A data model for supporting on-line analytical processing. In: Proc. Conf. on Information and Knowledge Management, Nov. 1996.
  • 4Gyssens M, Lakshmanan L V S. A Foundation for MultiDimensional Databases. In:Proc. of the VLDB 1997.
  • 5Vassiliadis P. Modeling multidimensional databases, cubes and cube operations. In: Proc. of 10 th SSDBM 1998, Capri.
  • 6Lehner W. Modeling Large Scale OLAP Scenarios. EDBT'98.
  • 7Nguyen T B, Tjoa A M, Wagner R R. An Object Oriented Multidimensional Data Model for OLAP. In: Proc. of the First Intl. Conf. on Web-Age Information Management (WAIM'00),Shanghai, China, June 2000.
  • 8Jagadish H V, Lakshmanan L V S, Srivastava D. What can hierarchies do for data warehouses? VLDB99.
  • 9Pedersen T B, Jensen C S. Multidimensional Data Modeling for Complex Data. In:Proe. ICDE' 99.
  • 10Reasoning about Summarizability in Heterogeneous Multidimensional Schemas. Carlos A. Hurtado, Alberto O.Mendelzon, ICDT 2001. 375～389.

二级参考文献10

  • 1[3]Lehner W. Modeling Large Scale OLAP Scenarios. In: 6th Intl. Conf. on Extending Database Technology (EDBT'98, Valencia, Spain, 23-27 March)
  • 2[4]Cablbbo L,Torlone R. A Logical Approach to Multidimensional Databases. In:Proc. of the EDBT 1998
  • 3[5]Nguyen T B,TJOA A M ,Wagner R R. An Object Oriented Multidimensional Data Model for OLAP. In: Proc. of the First Intl. Conf. on Web-Age Information Management (WAIM'00), Shanghai, China, June 2000. Lecture Notes in Computer Science (LNCS), Springer, 2000
  • 4[6]Agrawal R,Gupta A, Sarawagi S. Modelling Mul-tidimensinoal Databases. In:Proc. of the ICDE 1997
  • 5[7]Li C,Wang X S.A data model for supporting on-line analytical processing. In:Proc. Conf. on Infor-mation and Knowledge Management, Nov. 1996
  • 6[8]Gyssens M, Lakshmanan L V S. A Foundation for Multi-Dimensional Databases. In:Proc. of the VLDB 1997, Athens, Greece
  • 7[9]Vassiliadis P. Modeling multidimensional databases, cubes and cube operations. In:Proc. of 10 th SSDBM 1998, Capri
  • 8[10]Pedersen T B, Jensen C S. Multidimensional Data Modeling for Complex Data. In:Proc. ICDE'99
  • 9[1]Hurtado C,Mendelzon A. Reasoning about summarizability in heterogeneous multidimensional schemas. In: Proc. of the 8th Intl. Conf. on Database Theory, London, UK, 2001
  • 10[2]http://www.olapcoucil.org

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计算机科学
2003年 第10期

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