Earticle

초록

영어

The objective of this research is to develop a formal framework and methodology to facilitate real-time data integration, thus enabling semantic interoperability among distributed and heterogeneous information systems. The proposed approach is based on the concepts of "ontology" and "semantic mediators." An ontology is developed and used to capture the intension (including structure, integrity rules and meta-properties) of the database schema. We also develop the agent communication protocol for semantic reconciliation, which is based on the theory of speech acts and agent communication language. This protocol is used by a set of semantic mediators, which automatically detect and resolve various semantic conflicts at the data- and schema-levels by referring to the ontology. A mediation-based query processing technique is developed to provide uniform and integrated access to the multiple heterogeneous information sources. Prototype tools are being implemented to provide proof of concept for this work.

목차

I. 서론
 II. 실시간 데이터 통합을 위한 프레임워크
 III. SCROL 온톨로지
 IV. 시맨틱 중재 에이전트
 V. 시맨틱 쿼리 처리 기법
  5.1 쿼리 파싱과 분해 단계
  5.2 쿼리 수정 단계
  5.3 시맨틱 변환 단계
  5.4 글로벌 쿼리 결과를 조합하는 단계
 VI. 시맨틱 조정 예
 VII. 프로토타입 시스템
 VIII. 결론 및 시사점
 참고문헌

저자

• 박진수 [ Jinsoo Park | 서울대학교 경영대학 경영전문대학원 ]

참고문헌