Hybrid Schema Matching (HSM): 지리정보 통합을 위한 하이브리드 스키마 매칭 알고리즘
Hybrid Schema Matching (HSM): Schema Matching Algorithm for Integrating Geographic Information
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초록
웹 기반 지도서비스들은 지속적인 업데이트를 통해 사용자가 원하는 지리정보를 다양하게 제공해준다. 그러나 이러한 지도서비스들은 하나의 지리객체에 대해 각각 다른 정보를 제공한다. 이는 여러 가지 문제를 야기하며, 특히 사용자에게 다양한 정보를 통합적으로 제공하지 못하는 문제점을 지닌다. 이 논문에서는 이러한 문제점을 해결하기 위해 웹에 존재하는 다양한 지리정보들을 통합하여 사용자에게 풍부한 지리정보를 제공할 수 있는 시스템을 제안한다. 이 논문에서는 다양한 비공간정보 스키마를 통합하기 위해 어댑터 기반 의미 처리방법과 정적·동적 의미 관리 기반 접근방법을 혼합한 하이브리드 스키마 매칭(Hybrid Schema Matching, HSM) 알고리즘을 제안한다. 또한 제안한 알고리즘의 평가를 위해 기존 스키마 매칭 방법들과의 비교평가를 수행한다. 이 논문에서 제안한 알고리즘은 새로운 의미정보 스키마들을 등록하여 관리하기때문에 스키마 매칭의 정확성을 향상시킨다. 또한 다양한 스키마를 활용한 어휘 기반 스키마 매칭이 가능하므로 높은 범용성을 제공한다. 마지막으로, 제안한 알고리즘은 스키마 의미 간 관계성을 점진적으로 확장함으로써 비용의 효율성을 제공한다.
Abstract
Web-based map services provide various geographic information that users want to get by continuous updating of data. Those map services provide different information for a geographic object respectively. It causes several problems, and most of all various information cannot be integrated and provided. To resolve the problem, this paper proposes a system which can integrate diverse geographic information and provide users rich geographic information. In this paper, a hybrid schema matching (HSM) algorithm is proposed and the algorithm is a mixture of the adapter-based semantic processing method, static semantic management-based approach, and dynamic semantic management-based approach. A comparative evaluation is described to show effectiveness of the proposed algorithm. The proposed algorithm in this paper improves the accuracy of schema matching because of registration and management of schemas of new semantic information. The proposal enables vocabulary-based schema matching using various schemas, and it thus also supports high usability. Finally, the proposed algorithm is cost-effective by providing the progressive extension of relationships between schema meanings.
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