한국데이타베이스학회:학술대회논문집 (Proceedings of the Korea Database Society Conference)
- 한국데이타베이스학회 1999년도 춘계공동학술대회: 지식경영과 지식공학
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- Pages.161-171
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- 1999
Intelligent Query Processing Using a Meta-Database KaDB
- Huh, Soon-Young (Graduate School of Management Korea Advanced Institute of Science and Technology) ;
- Moon, Kae-Hyun (Graduate School of Management Korea Advanced Institute of Science and Technology)
- 발행 : 1999.06.01
초록
Query language has been widely used as a convenient tool to obtain information from a database. However, users demand more intelligent query processing systems that can understand the intent of an imprecise query and provide additional useful information as well as exact answers. This paper introduces a meta-database and presents a query processing mechanism that supports a variety of intelligent queries in a consistent and integrated way. The meta-database extracts data abstraction knowledge from an underlying database on the basis of a multilevel knowledge representation framework KAH. In cooperation with the underlying database, the meta-database supports four types of intelligent queries that provide approximately or conceptually equal answers as well as exact ones.