객체지향 데이타베이스를 이용한 전문가시스템에서의 지식베이스 모형 개발 = Development of a Knowledge Base Model in Expert Systems Using an Object-Oriented Database

다국어 초록 (Multilingual Abstract)

Building a knowledge base effectively has been an important research area in the expert systems field. Avariety of approaches have been studied including rules, semantic networks, and frames to represent the knowledge base for expert systems. As the size and complexity of the knowledge base get larger and more complicated, the integration of knowledge bases with database technology becomes more important to process the large amount of data. However, relational database management systems show many limitations in handling the complicated human knowledge due to its simple two dimensional table structure.
In this paper, we propose a knowledge base model on the basis of a frame structure using an object oriented database. In the proposed model, managing rules for inferencing and facts about objects in one uniform structure, knowledge and data can be tightly coupled and the performance of reasoning can be improved. For building a knowledge base, a knowledge script file representing rules and facts is used and the script file is transferred into a frame structure in database systems. Specifically, designing a frame structure in the database model as it is, it can facilitate management and utilization of knowledge in expert systems. To tes the appropriateness of the proposed knowledge base model, a prototype system has been developed using a commercial ODBMS called ObjectStore and C++programming language.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 지식의 표현과 저장
• 3. 객체지향 데이터베이스를 이용한 지식베이스 모형 개발
• 4. 지식의 정의 및 저장
• 5. 지식베이스 모형을 이용한 규칙기반 추론의 수행
• 6. 결론
• 참고문헌