정보기술과데이타베이스저널 (The Journal of Information Technology and Database)
- 제6권1호
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- Pages.15-25
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- 1999
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- 1226-3559(pISSN)
데이터 제공원의 신뢰도를 고려한 확장 관계형 데이터 모델
An Extended Relational Data Model for Database Uncertainty Using Data Source Reliability
초록
We propose an extended relational data model which can represent the reliability of data. In this paper, the reliability of data is defined as the reliability of the source, from which the data originated. We represent the reliability of data at the level of attribute values, instead of tuples, then define the selection, product and join operators.
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