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Object Identity in Database Systems

李天柱;   

  1. Computer Centen Hebei Univereity; Baoding 071002;
  • 出版日期:1995-07-10 发布日期:1995-07-10

Object Identity in Database Systems

Li Tianzhu;   

  1. Computer Centen Hebei Univereity; Baoding 071002;
  • Online:1995-07-10 Published:1995-07-10

The concept of object identity and implementation of object identity in some sys-tems have been explained in literature. Based on an analysis on the idea of data schemein ANSI/X3/SPARC, this paper presents the concept of fulLidentity which includesentity identity conceptual object identity and internal object identity In addition, theequality of objects, which is richer and more practical, is discussed based on the fullidentity of objects. Therefore, the semanics and constructions of the identity for thecom…

关键词: displays, graphics hardware, human vision, point-based model, computer graphics

Abstract: The concept of object identity and implementation of object identity in some sys-tems have been explained in literature. Based on an analysis on the idea of data schemein ANSI/X3/SPARC, this paper presents the concept of fulLidentity which includesentity identity conceptual object identity and internal object identity In addition, theequality of objects, which is richer and more practical, is discussed based on the fullidentity of objects. Therefore, the semanics and constructions of the identity for thecom…

Key words: computer graphics, displays, graphics hardware, human vision, point-based model



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