• Journal of the Korean Society for information Management
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• v.24 no.4
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• pp.285-303
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• 2007

This study aims to explore a new technique making complementary linkage between controlled vocabularies and uncontrolled vocabularies for analyzing a research domain. Co-word analysis can be largely divided into two based on the types of vocabulary used: controlled and uncontrolled. In the case of using controlled vocabulary, data sparseness and indexer effect are inherent drawbacks. On the other case, word selection by the author's perspective and word ambiguity. To complement each other, we suggest a descriptor profiling that represents descriptors(controlled vocabulary) as the co-occurrence with words from the text(uncontrolled vocabulary). Applying the profiling to the domain of information science implies that this method can complement each other by reducing the inherent shortcoming of the controlled and uncontrolled vocabulary.

• Journal of the Korean Society for information Management
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• v.23 no.3 s.61
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• pp.69-89
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• 2006

Several performance factors which have applied to the automatic indexing with controlled vocabulary and text categorization based on Rocchio algorithm were examined, and the simple method for performance improvement of them were tried. Also, results of the methods using Rocchio algorithm were compared with those of other learning based methods on the same conditions. As a result, keeping with the strong points which are implementational easiness and computational efficiency, the methods based Rocchio algorithms showed equivalent or better results than other learning based methods(SVM, VPT, NB). Especially, for the semi-automatic indexing(computer-aided indexing), the methods using Rocchio algorithm with a high recall level could be used preferentially.

• Journal of the Korean Society for Library and Information Science
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• v.45 no.1
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• pp.211-232
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• 2011

Thesaurus, a well-known form of controlled vocabulary, has been widely used for indexing and searching of information during the last 50 years. There also have been developments of international and national standards to provide guidelines for developing thesaurus in diverse subject areas. In recent years, the revisions of thesaurus-related standards have been made. Among them are ISO 25964 and BS 8723. This article examines the current status of revision of these standards, and discusses its implications. Based on this examination, it suggests functional requirements of thesaurus in the present information environment, and also proposes elements needed for the development of these functions.

• 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.

• 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 Naturopathy
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• v.10 no.1
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• pp.48-55
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• 2021

Purpose: People with intellectual disabilities are vulnerable to the use of receptive and expressive vocabulary. The purpose of this study was to investigate the effect on the receptive vocabulary and the expressive vocabulary after teaching reading education to adults with intellectual disabilities living in facilities using picture fairy tales. Methods: The subjects of this study were 12 adults with intellectual disabilities under the age of 20 to 40 residing in residential facilities. They were divided into 6 test groups and 6 control groups, and gave a total of 12 sessions of 60 minutes per session, and reading instruction using picture fairy tales. Results: In the test group that conducted reading activities using picture fairy tales, the use of the receptive vocabulary was significantly improved, and the use of the expressive vocabulary was significantly improved. There were no significant results in all of the control groups. Conclusions: This study had the effect of improving the use of receptive vocabulary and expressive vocabulary after teaching reading using picture fairy tales for the disabled. It is estimated that this result will be the basis for research in this field.

• Proceedings of the Korean Society for Information Management Conference
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• 2006.08a
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• pp.153-160
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• 2006

통제어휘를 사용하는 주제색인 작업에서 색인전문가를 효율적으로 지원할 수 있는 자동색인 방법으로 프로파일 방법의 성능과 특성을 검토해 보았다. 자동색인의 성능에 영향을 미치는 주요 요인들을 검토한 다음, 동일한 조건 하에서 프로파일 기반 방법과 다른 방법들(NB, SVM, VPT)의 성능을 비교하였다. 그 결과, 로치오 알고리즘에 기초한 프로파일을 사용하는 방법이 다른 방법들에 비해 저성능이라는 일부 평가를 일반화하기는 어렵다는 사실이 실험을 통해 드러났다. 또한, 후보 디스크립터 리스트의 생성을 통하여 색인전문가의 색인작업을 지원하는 반자동색인의 경우, F$_1$척도로는 SVM, VPT와 동등한 수준에 있으면서 재현율이 상대적으로 높은 수준인 프로파일 기반 방법을 우선적으로 고려해 볼 수 있을 것이다.

• 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.

• Journal of the Korean Society for information Management
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• v.29 no.2
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• pp.225-246
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• 2012

This study purported to investigate the possibility of automatic descriptor assignment using the reclassification of author keywords in domestic scholarly databases. In the first stage, we selected optimal classifiers and parameters for the reclassification by comparing the characteristics of machine learning classifiers. In the next stage, learning the author keywords that were assigned to the selected articles on readings, the author keywords were automatically added to another set of relevant articles. We examined whether the author keyword reclassifications had the effect of vocabulary control just as descriptors collocate the documents on the same topic. The results showed the author keyword reclassification had the capability of the automatic descriptor assignment.

• Journal of Information Management
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• v.32 no.2
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• pp.26-39
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• 2001

Various controlled vocabularies such as thesaurus and classification used for effective information retrieval contain different terms in expressing the same concept or meaning. National Library of Medicine has developed the Unified Medical Language System(UMLS) to solve the problems of information retrieval and integration resulted from the difference of concepts between different sources. The UMLS development was initiated in 1982 as a long-term project, and the 2001 edition of the UMLS consists of three parts : Metathesaurus, Semantic Network, and SPECIALIST Lexicon. This paper reviews background and structure of the UMLS including applications in PubMed, NLM Gateway.