• Journal of the Korean Society for information Management
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• v.32 no.4
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• pp.7-27
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• 2015

This study is to analyze impact factor, self-citation, immediacy index and cited half-life through citation analysis of scholarly journals of LIS field in Korea. This study was analysed the 9,329 references cited in Korean scholarly journal of LIS field. As a result, it analyzed that the articles of Korean LIS journal among the cited references in scholarly journal of LIS field in Korea is very insignificant. In other words, the percentage of citations was observed 19.1% in Journal of Korean Library and Information Science Society (KSLIS), 20.2% in Journal of the Korean Society for Library and Information Science (KLISS), 17.0% in Journal of the Korean Society for Information Management (KOSIM), 18.8% in Korean Biblia Society for Library and Information Science (KBIBLIA). Also, the cited half-life was analysed 5.87 years in KSLIS, 5.40 years in KLISS, 4.25 years in KOSIM, 3.57 years in KBIBLIA. And Impact factor has been found to be very low compared to journals of other fields.

• Journal of the Korean Society for information Management
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• v.26 no.2
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• pp.211-222
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• 2009

Electronic publishing has influenced, and in some ways changed, information seeking, reading patterns and citation behaviours. This study collected the Cited Half-Lives, the indicator implies the life-span of scholarly journals, from JCR Social Science edition the before and after of the prevalence of electronic journals, and observed if there are some changes in these two periods. The analysis results of eight disciplines show that the average Cited Half-Lives increased in 2007 than in 1994 for seven disciplines except the demography. Especially in the four disciplines of economics, education, finance and sociology, the average Cited Half-Lives increased significantly. This results show that the concentration, researchers cite more recent articles and concentrate their citations on fewer ones, is lightening and the dispersion of citations is actually increasing. With the online availability of articles and journals the old online materials can be often accessed, used and cited more frequently, the more growth potential of Cited Half-Lives are made in a digital environment. Further research needs to investigate if the phenomenon will become more obvious in various disciplines after a few years.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.2 no.1
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• pp.266-295
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• 1974

The purpose of this study is to make a contribution to the effective management of medical literature in Korean libraries and specifically to help to select medical books and periodicals by determining the value and life of medical literature by means of citation counting and analysis. This report will present methods of calculation and data collection to measure the importance, half life of medical literature and the authority of author for Korean medical libraries. The writer conducted comparative studies based on data covering a two-year period, 1970-1971, using about 16,899 citations in 1,032 articles of the above journals. The references and citations are counted and analyzed by the number of authors, periodicals. books and publication dates. By the following ratio. calculated by the citation counting and analysis, we can decide the rates of medical periodicals to books, foreign literature to domestic literature and literature of the most numerously cited. authors, for the selecting method of Korean Medical libraries. (1) It is disclosed that 61 main authors are cited 9 times. Most of them are Western authors, they are cited 14,374 times which represents 88.6 % of the total citations. (2) The cited medical literature is classified as follows: The ratio of cited medical periodicals to the cited medical books is 82.0%. (The books at a rate of 18.0%.) Therefore, the wnter concentrated the efforts on the analysis of periodicals. (3) Classification of the periodicals by countries indicates that about 11.2% of total citations are made from Korean medical literature. The medical activities in Korea are dependent on the advanced foreign countries at ratio of 88.8%. Of the foreign medical periodicals cited, Japanese literature represents only 4.5% while literature of European countries and America constitutes 84.3%. (4) If medical journals are arranged in order of decreasing productivity of articles on a given subject, they may be revealed that it is necessary to have 98 titles of key journals to cover 60% of information in the field of medical science and 60 titles for an average of 50%. (5) For the purpose of measuring the life of medical literature in Korea, the writer has calculated the half lives of periodicals and books as follows: Kinds of Literature 1. Periodicals 2. Books 3. Whole literature Half-lives 7.75 years 4.11 years 6.37 years (6) The half lives of domestic and Japanese literature in the medical science are comparatively short.

• Journal of the Korean Society for information Management
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• v.22 no.3 s.57
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• pp.379-408
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• 2005

The purpose of this study is to investigate the research trends of library and information science in Korea by means of the subject analysis of the Korean journal articles published during the last sixty years and by means of the ciation analysis of the literatures cited in the journal articles. The results of this study are as follows. First, the subjects of the journal articles are difference from the articles by publication period. The core subjects of the research have been changed over the years. Second, the subjects of library and information science literatures in foreign languages cited in the journal articles are difference from the literatures by citation period and by literature age. Third, the subjects of other disciplinary literatures in foreign langauges cited in the journal articles is difference from the literatures by citation period and by literature age. Fourth, although the half-life of library and information science literatures cited in the journal articles is difference from the literatures by subject, the half-life of the literatures of this discipline is 10-year.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.20 no.1
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• pp.5-22
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• 2009

This study is analyzed the cited documents after selecting Management Administration Economics Trades in order to comprehend the study sphere and tendency for the three years from 2005 to 2007 in which 540 articles and 22,147 cited documents. In the analyzing result, the scientific study exchange communication activities is making progress more actively by the sole study rather than the joint study and over 77% of references are published before around 10 year-old, specifically 8.5 year-old documents have been used the most. The half-life period is 10.9 years for domestic books and 11.1 years for international books. For the journals, it is 6.0 years for domestic and 8.2 years for international which tells international articles are slightly longer half-life period than domestics.

• Journal of the Korean Society for information Management
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• v.20 no.4 s.50
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• pp.1-21
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• 2003

The purpose of this study is to analysis the types of cited materials dependence ratio of foreign information of researchers, and half-life of some cited analysis, Journal articles from four science & technology fields-mechanical, architectural, chemical, electrical-are selected, and the literatures cited by those journal articles are analysed in terms of resource types, languages, publication year of cited analysis. In result, it was found that the order of frequency of citation is scholarly journal, monograph, Proceeding, technical report. And dependence ratio of foreign information of researchers was most higher in the chemical field. Also, it was found that half-life of mechanical is 6.50, that of architectural is 5.45, that of chemical is 9.65, that of electrical is 5.60

• Journal of Information Management
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• v.24 no.4
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• pp.24-42
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• 1993

This study examines the obsolescence of library and information science literature published in Korea, analysing citations appeared in major periodicals of 1992. Periodicals, languages, and forms of cited literatures are analyzed to find the half-life and the annual aging factors of Korean library and information science literature and then synthesized.

• Journal of the Korean Society for information Management
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• v.11 no.2
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• pp.31-48
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• 1994

This study attempts to investigate the scatter of citation, obsolescence, and half-life of some social science literature. For the study 131 journal articles taken from three scholarly journals in the field of Economics. Public Administration, and Library and Information Science are selected and all analyses are taken in terms of the material types, the publication place, and the publication year of the papers cited by those journal articles. In result, it was found that the half-life of monographs is 6.76, that of scholarly journal articles 8.07, that of reports 6.49, and that of theses 3.45. Also, the study finds that most researchers in those field, cited more articles published in foreign countries(67.79%) that those published from Korea(32.21%).

• Journal of the Korean Society for information Management
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• v.28 no.2
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• pp.97-115
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• 2011

A large and reliable citation database is necessary to identify and analyze citation behavior of Korean researchers in science and technology. Korea Institute of Science and Technology Information (KISTI) built the Korea Science Citation Database (KSCD), and have provided Korea Science Citation Index (KSCI) and Korea Journal Citation Reports (KJCR) services. In this article, citing behavior of Korean scientists on Korean journals was examined by using the KSCD that covers 459 Korean core journals. This research dealt with (1) statistical numeric information of journals in KSCD, (2) analysis of document types cited, (3) ratio of domestic to international documents cited and ratio of citing different disciplines, (4) analysis on immediacy index, peak time, and half-life of cited documents, and (5) analysis on impact of journals based on KJCR citation indicators. From this research, we could find the immediacy citation rate (average 2.36%), peak-time (average 1.7 years) and half-life (average 5.2 years) of cited journals in Korea. We also found that the average journal self-citation rate is more than 50% in every field. In sum, citing behavior of Korean scientists on Korean journals was comprehensively identified from this research.

• Journal of Information Management
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• v.36 no.2
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• pp.1-24
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• 2005

This study is aimed at investigating if there were the differences on citing behavior of researchers among different fields of engineering, in terms of five items, such as types of resources cited, the average number of documents cited, the demand of current documents, languages used in cited documents, and the life decrease phenomena of information. 29,160 cited references in 2,333 articles from 4 major selected journals, published in the year of 1999, 2001, and 2003 were analyzed. The result of this study shows that there were the differences on citing behavior of researchers among different fields of engineering on all 5 items. And also, some suggestions were given the priority of library collection and shelf arrangement for the library.