Integration of Semistructured Data with Partial and Inconsistent Information

  • Authors:

  • Mengchi Liu;Tao Guan;Tok Wang Ling

  • Affiliations:

  • -;-;-

  • Venue:
  • IDEAS '99 Proceedings of the 1999 International Symposium on Database Engineering & Applications
  • Year:
  • 1999

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Abstract

Data integration of several sources has gained considerable attentions with the recent popularity of the Web. In the real world, some information may be missing (i.e., partial) and some may be inconsistent from several sources. How to obtain information as complete as possible and detect inconsistency from these sources is thus an interesting question. Most existing work uses a simple graph-based or tree-based semistructured data model to represent heterogeneous data coming from various sites, which fail to account for the existence of partial and inconsistent information. In this paper, we redefine the notion of semistructured objects to reflect the existence of partial and inconsistent information and study how to integrate such objects spread in various sources and check consistency in the meantime. We propose a new operator integration for this purpose and discuss its semantic properties.