• Journal of the Korean Society for information Management
• /
• v.31 no.1
• /
• pp.31-51
• /
• 2014

This study aims to suggest several improvement strategies for the access and retrieval system of National Library of Korea Subject Headings (NLKSH). For this purpose, first of all, the access and retrieval systems in five selected subject headings were examined. Second, focus group interviews and system analysis were conducted to reveal the current condition and suggest the future development strategies. Third, IFLA's Guidelines for Subject Access in National Bibliographies and FAST application cases were analyzed to suggest implications on the improvement strategies. Upon these analysis, recommendations for improving access and retrieval systems of the NLKSH were proposed in four areas as follows: functionalities, interfaces, queries, and other front-end features.

• Journal of the Korean Society for Library and Information Science
• /
• v.48 no.2
• /
• pp.177-199
• /
• 2014

The purpose of this study is to propose the expansion of headings for digital trends of Korean Decimal Classification. In order to achieve the purpose, this study first analyzed the change process of classification items related to digital resources in DDC and KDC. Second, subject names related to digital in LCSH and Korean National Library Subject Heading were analyzed. Third, comparisons between the items related to digital of DDC 23rd with LCSH and KDC with Korean National Library Subject Heading were conducted. The result of comparative analysis was identified that KDC 6th edition faces with difficulties in reasonable classification because item names related to digital of KDC 6th edition have 11 items. Therefore, the item related to digital has to be expanded to new classification item name and has to add include notes and class here notes in KDC.

• Journal of the Korean Society for Library and Information Science
• /
• v.48 no.1
• /
• pp.75-95
• /
• 2014

The purpose of this study was to propose the improvements for high quality of National Library of Korea (NLK) Subject Headings List which was developed as a subject access tool in 2002. For this study, literature review, case study for subject headings lists of national libraries, and data analysis of headings and relationships were performed. Several problems were found as follows: inconsistency of subject headings descriptions, unclear and unnecessary relationships among headings, inconsistency of hierarchical relationships, lack of currency, incorrectness of classification numbers, duplication of newly requested terms, and assignment of non-preferred and unregistered terms in bibliographic records. Focusing on these problems, modifications of subject headings and bibliographic records, installation and operation of an review committee on subject headings, and supplementation of a manual were suggested to improve NLK Subject Headings List.

• Journal of Korean Library and Information Science Society
• /
• v.53 no.1
• /
• pp.103-124
• /
• 2022

This paper suggests a way to improve Korean diaspora-related subject headings based on the analysis of terminology about Koreans in Korean diaspora-related manuscripts and investigation of related terms in the National Library of Korea subject headings. After selecting three KCI journals with high ratios of diaspora-related papers, the study extracted Korean-related terminology from the journal papers and examined their term frequencies. Additional Korean-related terms were investigated by manually reviewing the articles in which extracted terms appear. Based on these analyses, the study proposes several supplemental enhancements to Korean-related topic names in the National Library of Korea's subject headings, such as changing the English notation, adding non-preferred words, and changing the hierarchical relationship of the existing topic names.

• Journal of the Korean Society for information Management
• /
• v.40 no.2
• /
• pp.157-182
• /
• 2023

This study analyzed the structure and utilization of subject headings in the National Library of Korea Subject Headings List (NLSH) based on an analysis of subject headings assigned to 1,218,867 national bibliographies from 2003 to 2022. The findings of the study are as follows: Firstly, among all subject headings in the NLSH, there were 257,103 preferred terms, accounting for 50.2% of the total terms. Foreign language terms constituted 33% (169,466), while non-preferred terms comprised 12% (61,442). Among the preferred terms, 57,312 subject headings were used, accounting for 22.3%. However, it was observed that 54.7% (31,351) of these subject headings were assigned less than 5 times, indicating that only a small number of subject headings were frequently utilized. Secondly, the frequency of relationship indicators appeared in the order of RT, BT, and NT. The NLSH consisted of 12,602 top-level subject headings and 143,704 lowest-level subject headings, with a maximum depth of 17 levels. Thirdly, on average, 1.72 subject headings were assigned per bibliographic record. The number of subject headings assigned and the depth of the hierarchy increased for materials with more specific contents. Recent bibliographic records have been assigned more subject headings and deeper into the hierarchy of the NLSH. It was also found that the number of subject headings assigned per bibliography varied depending on the main class of KDC. Based on the findings, it is recommended to evaluate the coverage of terms in the NLSH, reorganize hierarchical relationships and depth of subject headings, and enhance the development of subdivisions within the NLSH.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.21 no.3
• /
• pp.77-89
• /
• 2010

The purpose of this study is to develop a faceted classification scheme linked with a thesaurus(FCT) to more effectively organize documents according to subject, by transforming the current Korean Decimal Classification system(KDC) into a faceted classification scheme and linking it with Korea’s National Library Subject Headings. This combination should represent complex subjects more clearly, allow users to change citation order, and facilitate the addition of new subjects to the KDC scheme. Furthermore, by linking a thesaurus to the classification scheme, it is possible to share facets and expand the conceptual level of headings through the thesaurus descriptors.

• Journal of Korean Library and Information Science Society
• /
• v.46 no.4
• /
• pp.379-402
• /
• 2015

This study intends to make a comprehensive inquiry into the quality of subject data in library catalogs. On the basis of National Library Subject Headings (NLSH) developed in 2002, National Library of Korea (NLK) has input the subject data into cataloging records since 2003. However a serious question could arise regarding whether the data are appropriate and desirable as a subject of the work. Under these circumstances, this study examined as follows: First, the meanings and attributes of the 'subject' were examined with a comprehensive literature survey. Second, a experimental analysis was carried out to measure the quality of the subject data. Sample records were selected from NLK, LC and A university library in Korea, and absolute and relative quality were compared. Finally, the substantial and realistic strategies for improving the quality of subject data were discussed.