• Journal of the Korean Society for Library and Information Science
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• v.41 no.2
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• pp.335-357
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• 2007

There has been many studies representing intellectual structures with multidimensional scaling(MDS) However MDS configuration is limited in representing local details and explicit structures. In this paper, we identified two components of MDS mapping approach; one is MDS algorithm and the other is preparation of data matrix. Various combinations of the two components of MDS mapping are compared through some measures of fit. It is revealed that the conventional approach composed of ALSCAL algorithm and Euclidean distance matrix calculated from Pearson's correlation matrix is the worst of the compared MDS mapping approaches. Otherwise the best approach to make MDS map is composed of PROXSCAL algorithm and z-scored Euclidean distance matrix calculated from Pearson's correlation matrix. These results suggest that we could obtain more detailed and explicit map of a knowledge domain through careful considerations on the process of MDS mapping.

• Journal of the Korean Society for information Management
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• v.36 no.2
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• pp.57-77
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• 2019

Random Forest (RF), a representative ensemble technique, was applied to automatic classification of journal articles in the field of library and information science. Especially, I performed various experiments on the main factors such as tree number, feature selection, and learning set size in terms of classification performance that automatically assigns class labels to domestic journals. Through this, I explored ways to optimize the performance of random forests (RF) for imbalanced datasets in real environments. Consequently, for the automatic classification of domestic journal articles, Random Forest (RF) can be expected to have the best classification performance when using tree number interval 100~1000(C), small feature set (10%) based on chi-square statistic (CHI), and most learning sets (9-10 years).

• Journal of the Korean Society for information Management
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• v.39 no.2
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• pp.233-254
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• 2022

Link reduction algorithms such as pathfinder network are the widely used methods to overcome problems with the visualization of weighted networks for knowledge domain analysis. This study proposed NetRSQ, an indicator to measure the goodness of fit of a link reduction algorithm for the network visualization. NetRSQ is developed to calculate the fitness of a network based on the rank correlation between the path length and the degree of association between entities. The validity of NetRSQ was investigated with data from previous research which qualitatively evaluated several network generation algorithms. As the primary test result, the higher degree of NetRSQ appeared in the network with better intellectual structures in the quality evaluation of networks built by various methods. The performance of 4 link reduction algorithms was tested in 40 datasets from various domains and compared with NetRSQ. The test shows that there is no specific link reduction algorithm that performs better over others in all cases. Therefore, the NetRSQ can be a useful tool as a basis of reliability to select the most fitting algorithm for the network visualization of intellectual structures.

• Journal of the Korean Society of Food Culture
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• v.5 no.1
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• pp.59-75
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• 1990

The tzeam is the one of steaming cook that boiled the main material of poultry. meat and the sub-material of vegetables. It is always setted on the main-table in above seven chup ban sang and also kyoja sang. In this thesis, according to the kinds of tzeam in the main material of poultry, meat was to analysis reference frequency to them the materials, the measuring unit of materials, the terms of cooking and kitchen utensil by 47 books published in Korea from 1420 to 1987. 1. It was 37 kinds of tzeam in the main material of poultry, meat. 2. Materials were classified into the main-material, sub-materials, seasioning and decorations. 3. There were 43 kinds of measuring units, of them 18 kinds were for volume, 12 kinds were for quantity, 4 kinds were for length and the rest measuring units were 9 kinds. 4. There were 26 kinds of kitchen utensil for cooking. They were mainly used a hab 1 rice ball with lids, and castles (cast iron castle). 5. There were 27 kinds of cooking terms. The terms of them, 11 kinds were for heating methods, 16 terms of them were for the cutting process.

• Journal of Korea Technology Innovation Society
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• v.20 no.4
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• pp.1057-1088
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• 2017

This research has attempted to conduct meta-analysis on 605 published papers in the field of socio-nuclear studies from 1957 to 2016 in Korea through network analysis of author-provided keywords. The findings lead to several straightforward conclusions. First, socio-nuclear studies including policy research have mostly been conducted by universities, while technology developments have been led by public organizations. Second, it is apparent that the Fukushima accident has provoked major engagement among social scientists in nuclear issues as the remarkable growth of the knowledge network after 2011 signify. Third, the research topics have been diversified as a result of growing multi-disciplinary research projects. Finally, there is between sub communities in the socio-nuclear knowledge network in terms of network properties. This article provides a stepping stone for future researchers with a wealth of information concerning the status of socio-nuclear studies. For policy makers, this meta-analysis is likely to provide guidance on what we need and do not need. It remains to be seen whether the socio-nuclear knowledge network in Korea is well-structured or not. provide an impetus for comparative studies with overseas cases in order to evaluate the network and its soundness.

• Journal of the Korean Society for Library and Information Science
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• v.47 no.3
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• pp.5-23
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• 2013

The purpose of this study is to analyze the characteristics of juvenile books on Korea and Japan in WorldCat and observe the possibility of diffusing knowledge on each country. The distribution of bibliographic records of books published from 1993 through 2012, and especially the books published in 1997, when the numbers of books on both countries were the closest, were analyzed in detail in terms of language, genre, subject headings, and holding libraries. The result shows much fewer bibliographic records of juvenile books on Korea than those of books on Japan, and their growing gap every year. There were also much fewer holding libraries and copies of books on Korea, published in 1997, compared to books on Japan. The texts were mostly written in Korean and in tones set for very young readers. A serious lack of diversity in subjects and genres with the focus on Korean folklores and anecdotal biographies were also observed. Therefore, there seems to be nothing much interesting to read that would help promote the diffusion of knowledge on Korea through libraries around the world.

• Journal of the Korean Society for Library and Information Science
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• v.46 no.4
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• pp.99-117
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• 2012

This paper proposes a method of using national R&D patents' CoIPC networks to identify interdisciplinary trends of technology areas related to Korean national R&D. While previous research analyzed interdisciplinarity of national R&D with simple bibliometric descriptions, this research uses the network-based indexes to analyze its interdisciplinarity from the viewpoints of interdisciplinary "diversity of coupling" and "strength of coupling". In this research, this proposed method was used to form a R&D CoIPC network from the Korean national R&D patents registered from 2007 to 2010. It is expected that the proposed method can be incorporated into a system for a national R&D trend analysis, and used to identify the issues of technology convergence in national R&D and formulate its related research policies.

• Journal of the Korean Society for Library and Information Science
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• v.45 no.3
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• pp.5-26
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• 2011

The purpose of this study is to develop the evaluation indicators of school libraries in Korea. To do this, the indicators were extracted from an analysis of seven foregoing studies. The draft of evaluation indicators was made after reviewing the validity of each indicator according to the criteria: quantifiability, objectivity and possibility of obtaining evaluation materials. The feasibility of the standards and measures used by the Committee on Library and Information Policy was examined to improve the validity of new indicators. To decide the distribution of marks for evaluations, the opinions of teacher librarians and professionals on the importance of indicators was surveyed, the evaluation indicators used by the Committee on Library and Information Policy were analyzed, and an intensive review was done by professionals. A draft of an evaluation index with thirty indicators in six categories is proposed.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.1
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• pp.5-34
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• 2018

The small library evaluation index, which was previously developed and is currently in use, needs to be improved because of two major reasons: inefficient allocation of points along with evaluation items and detailed indicators that are different from the actual environment of small libraries; and the lack of value as basic data for preparing policies relevant to small libraries. Therefore, the present study proposed a small library operation evaluation index (draft) that includes not only a quantitative evaluation but also a qualitative evaluation that allows the evaluation of the basic purpose and value of small libraries by reflecting the demands of the small libraries that are being evaluated. The proposed small library operation evaluation index (draft) was made to be an evaluation for self-inspection that enables small libraries to autonomously conduct operation evaluation and gauge their level by diversifying the evaluation methods and the evaluation scale of detailed indicators.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.1
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• pp.159-178
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• 2018

The purpose of this study is to understand the characteristics of books selected for 'The Big Read' community reading initiative of the National Endowment for the Arts from 2006 to 2017 and its relation with 'One Book, One City' community reading campaign in the U.S.A. An analysis of 1,407 TBR programs and 745 participating communities, and 56 books from TBR Library shows that TBR expands and complements 'One Book' reading campaigns, and confirms the sustenance of this innovative model. TBR Libray books were selected with TBR's own criteria, but their features are generally very similar to those of 1,102 books selected for 'One Book' programs. They often reflect some interests in such universal values as coming of age, justice, integrity, etc. and diverse cultural experiences and life. The outcomes of 'One Book' and TBR cannot be qualitatively measured, but their sustainable value of communication through one selected book has been well proved.