한국문헌정보학회지 (Journal of the Korean Society for Library and Information Science)

한국문헌정보학회 (Korean Society For Library And Information Science)
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주제분류 기반의 개인화 검색시스템에 관한 연구

A Study on Personalized Search System Based on Subject Classification

  • 김광영 (한국과학기술정보연구원 정보기술연구실) ;
  • 곽승진 (충남대학교 사회과학대학 문헌정보학과)
  • 투고 : 2011.10.01
  • 심사 : 2011.11.17
  • 발행 : 2011.11.30
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초록

본 연구의 목적은 이용자의 자신의 성향 정보에 맞는 정확한 검색결과를 제공하기위한 개인화 검색시스템을 설계, 구현, 평가하는 것이다. 이를 위해서 주제 분류와 하이브리드기반의 이용자 프로파일을 구성하였다. 제안한 개인화 검색시스템의 성능 평가를 위해서 전문가들이 직접 국내과학기술 DB의 논문의 적합성을 판별하기위해서 MRR, MAP과 사용성 평가를 측정하였다. 그 결과 전문가가 직접 "컴퓨터공학"과 "문헌정보학" 분야에서 평가한 국내과학기술논문 결과에서도 제안한 개인화 검색시스템이 일반 검색시스템보다 정확도가 더 높았다. 특히 중의성을 가진 키워드 부분에서 더 높은 정확도를 보였다. 질적 평가인 심층면담을 통한 평가에서도 개인화 검색시스템이 이용자가 선호하는 문서들을 우선적으로 제공함으로써 정보검색 시간 및 정보 획득에 용이하다고 응답하였다. 또한 다양한 추천 시스템을 제공함으로써 새로운 정보 탐색에 도움이 된다하였으며, 개인화 검색시스템이 일반 검색시스템보다 이용자의 만족도가 높음을 알 수 있었다. 따라서 본 연구에서 전문가 직접 평가 결과 모두 제안한 개인화 검색시스템이 일반 검색시스템보다 더 높은 효율성을 제공하는 것을 입증하였다.

The purpose of this study is to design, implement and evaluate a personalized search system using gathered information on users to provide more accurate search results. For this purpose, a hybrid-based user profile is constructed by using subject classification. In order to evaluate the performance of the proposed system, experts directly measured and evaluated MRR, MAP and usability by using the Korean journal articles of science and technology DB. Its performance was better than the general search system in the area of "Computer Science" and "Library and Information Science". Especially better results were shown when tested on ambiguous keywords. Evaluation through in-depth interviews proved that the proposed personalized search system was more efficient in looking up and obtaining information. In addition, the proposed personalized search system provided a variety of recommendation systems which proved helpful in navigating for new information. High user satisfaction ratings on the proposed personalized search system were another proof of its usefulness. In this study, we were able to prove through expert evaluation that the proposed personalized search system was more efficient in information retrieval.

키워드

참고문헌

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