• Proceedings of the Korean Society for Information Management Conference
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• 2003.08a
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• pp.245-251
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• 2003

이 연구에서는 통제된 색인어를 이용하여 파악한 지식 구조와 통제되지 않은 키워드를 이용한 지식 구조를 비교하여 두 구조가 어떤 차이점을 보이는지를 살펴보았다. 또한 색인효과가 어떻게 나타나는지, 비통제어를 사용한 경우가 실제적으로 더 상세한 하위 영역을 표현하는지를 확인하고자 하였다. 실험 결과 통제된 색인어인 주제명표목을 사용한 영역지도와 비통제 색인어인 키워드를 사용한 영역지도 둘 다 인공지능 분야의 주요 분야들을 비슷하게 나타냈지만, 주제명표목을 사용한 경우에 색인효과가 일부 나타났다. 그리고 대체적으로 주제명표목에 기반한 영역지도보다는 키워드에 기반한 영역지도가 더 상세하게 나타났다.

• Journal of Information Management
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• v.26 no.2
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• pp.61-79
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• 1995

The purpose of this paper is to investigate search efficiency of controlled vocabulary versus uncontrolled vocabulary subject access in online catalog systems. The question of the effectiveness of controlled versus uncontrolled vocabulary in information retrieval has been raised in many literatures. A debate continues in the Library and Information Science Professions over the relative merit, appropriateness, and efficiency of uncontrolled vocabulary subject access in online catalog systems. Actually users used to combine uncontrolled vocabulary subject searching with controlled vocabulary subject searching. But the success of user's subject search depends on his choice of search terms. Also the technical developments that facilitate cooperation among information services in general make it increasingly possible for such cooperation to take place on an international level. In this study, several common types of vocabularies on online catalog systems are described and compared, especially usages of vocabularies in multilingual environment are analyzed.

• Journal of Korean Library and Information Science Society
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• v.40 no.3
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• pp.137-156
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• 2009

This study has analyzed the uncontrolled index terms in the theological journal, which were assigned by the authors and the LCSH subject headings in their form and meaning, compared to the standards of index terms and proposed much more sophisticated indexing system. In the uncontrolled index terms, noun phrases and compound terms are analyzed, this study found that indexers have to have theological knowledge and indexing techniques in order to assign more precise index terms. In the LCSH, unnecessary index terms and parenthetical qualifiers were analyzed. As a result of it, this study identified that the problems of inconsistency and errors raised from the basic index structure of LCSH.

• Proceedings of the Korean Society for Information Management Conference
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• 2006.08a
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• pp.233-238
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• 2006

본 연구에서는 단어의 의미연상을 이용하여 시소러스를 작성해봄으로써 탐색 시소러스 구축에 있어 단어연상검사법의 적용가능성을 살펴보았다. 문헌정보학 분야를 대상으로 단어연상검사를 실시한 후 자극어와 반응어간의 의미관계를 파악하고 반응어와 통제어휘를 비교 분석하였다. 실험 및 분석결과, 단어연상검사를 이용하면 다양한 연관관계 용어들을 시소러스에 포함시킬 수 있으며, 통제어휘집에 나타난 하위관계와 동등관계 용어들을 어느 정도 반영할 수 있다는 것을 확인하였다. 단어의 의미연상을 이용하여 구축된 탐색 시소러스는 정보검색환경에서 질의확장에 응용될 수 있다.

• Journal of the Korean Society for Library and Information Science
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• v.32 no.4
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• pp.69-86
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• 1998

The purpose of velop the indexing algorithm of secondary legal information by the study of characteristics of legal information, to compare the indexing system using controlled vocabulary to the indexing system using natural language in the secondary legal information full-text databases, and to prove propriety and superiority of the indexing system using controlled vocabulary. The results are as follows; 1)The indexing system using controlled vocabulary in the secondary legal information full-text databases has more effectiveness than the indexing system using natural language, in the recall rate, the precision rate, the distribution of propriety, and the faculty of searching for the unique proper-records which the indexing system using natural language fans to find 2)The indexing system which adds more words to the controlled vocabulary in the secondary legal information full-text databases does not better effectiveness in the retail rate, the precision rate, comparing to the indexing system using controlled vocabulary. 3)The indexing system using word-added controlled vocabulary with an extra weight in the secondary legal information full-text databases does not better effectiveness in the recall rate, the precision rate, comparing to the indexing system using word-added controlled vocabulary without an extra weight. This study indicates that it is necessary to have characteristic information the information experts recognize - that is to say, experimental and inherent knowledge only human being can have built-in into the system rather than to approach the information system by the linguistic, statistic or structuralistic way, and it can be more essential and intelligent information system.

• Annual Conference on Human and Language Technology
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• 1989.10a
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• pp.228-235
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• 1989

한자표기동음이철어의 어휘접근과정을 탐색하기 위해 두개의 실험들이 수행되었다. 피험자들은 한자표기 동음이철어(점화어)의 표기상 관련된 의미나 음운상 관련된 의미 각각의 연상어(한글표기표적어)에 대해 어휘판단을 하였다. 실험 I 은 200ms SOA 와 1000ms SOA 에서 두 의미들의 활성화의 시간경로를 탐색했는데, 그 결과 두 의미들이 동시에 인출 되며 어휘의미에 대한 접근이 음운표상에 의해 매개됨이 밝혀졌다. 실험 II 에 따르면 주의할당에 의한 손실이 음운상 관련된 의미에 있어서만 가능하였다. 긴 SOA에서는 통제처리가 작용하지만 철자상 관련된 의미에 대한 통제는 불가능한 것으로 판단되었다.

• Proceedings of the Korean Society for Information Management Conference
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• 1998.08a
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• pp.219-222
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• 1998

한국어문장과 의미가 같은 영어문장을 검색해 내기 위하여 한국어문장을 분석하고 색인언어를 고안하였다. 명사와 더불어 용언, 보조용언, 조사, 접속사 등이 색인어 및 기호로 선정되었다. 색인어 수를 줄이는 데 용언과 명사의 유사의미 단어들의 통제가 필요하였다.

• Journal of the Korean Society for information Management
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• v.21 no.1
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• pp.93-117
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• 2004

This study is to develop a hierarchic clustering model fur document classification and browsing in OPAC systems. Two automatic indexing techniques (with and without controlled terms), two term weighting methods (based on term frequency and binary weight), five similarity coefficients (Dice, Jaccard, Pearson, Cosine, and Squared Euclidean). and three hierarchic clustering algorithms (Between Average Linkage, Within Average Linkage, and Complete Linkage method) were tested on the document collection of 175 books and theses on library and information science. The best document clusters resulted from the Between Average Linkage or Complete Linkage method with Jaccard or Dice coefficient on the automatic indexing with controlled terms in binary vector. The clusters from Between Average Linkage with Jaccard has more likely decimal classification structure.

• Proceedings of the Korean Society for Information Management Conference
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• 1995.08a
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• pp.111-114
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• 1995

전산환경에서 유용한 색인도구로서의 통제어휘집을 구성하는 원칙과 방법을 제시하고자 전조합색인용 통제어휘집인 LC주제명표목표의 표목구조와 후조합색인용 통제어휘집인 시소러스의 용어구조를 비교하였다. 주제명표목표에서 사용되는 도치표목, 전치사로 연결된 표목, 접속사로 연결된 표목, 세목을 가진 표목을 시소러스에서 사용되는 색인구조와 비교분석 하였다. 주제명표목표가 참조구조를 시소러스체제로 변환시켰을 때 나타나는 문제점도 파악하였다.

• Journal of the Korean Society for Library and Information Science
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• v.32 no.3
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• pp.281-296
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• 1998

This study indicates that it is necessary to have characteristic information the information experts recognize-that is to say, experimental and inherent knowledge only human being can have built-in into the system rather than to approach the information system by the linguistic, statistic or structuralistic way, and it can be more essential and intelligent information system. As this study proves that the cited primary legal information within the secondary legal information functions as the index which represents the contents of the text because of the characteristics of legal information, the automatic indexing in the secondary legal full-text databases can be possible without the assitance of the experts. In case of the establishment, amendment or repealing of law, change of index terms can be possible through revising the legal text cited in the secondary legal information full-text databases. Even when we don't input the full-text about retrospective documents, automatic indexing is also possible, and the establishment and the practice of expert knowledge and integrated databases are possible in case of the retrospective documents.